

TABLE OF CONTENTS
Page
Opening Session..........................................................................................................................
1
Update on the Air Force Health Study
Disposition Study......................................................... 5
Air Force Health Study Specimen
Viability Study................................................................... 22
Air Force Health Study Closure
Activities................................................................................ 45
Review of Previous Meeting Minutes........................................................................................ 49
Review of the Air Force Health Study
Comprehensive Study Report................................... 50
Report on the Nightline
Interview............................................................................................ 135
Program Management Update................................................................................................ 137
Air Force Health Study FY’06
Activities................................................................................. 141
Update on the Dioxin Congeners Study................................................................................. 157
Review of the Air Force Health Study
Comprehensive Study Report [continued]............. 182
RHAC Business........................................................................................................................ 191
Closing Session........................................................................................................................ 196
LIST OF PARTICIPANTS
RHAC Members
Dr. Michael Stoto, Chair
Dr. Paul Camacho
Dr. Ezdihar Hassoun
Dr. David Johnson
Dr. Sanford Leffingwell
Dr. Kwame Osei
Dr. Ronald Trewyn
FDA/NCTR Representatives
Dr. Leonard Schechtman
RHAC Executive Secretary
Ms. Kimberly Campbell
Management Specialist
Mr. Anthony Graves
Col. Karen Fox
Lt. Susan Levy
Lt. Col. Julie Robinson
Mr. Manuel Blancas
UDTech
Dr. William Grubbs
Science Applications International
Corporation
Dr. Judson Miner
Operational Technologies Corporation
Dr. Maurice Owens
Science Applications International
Corporation
Ms. Meghan Yeager
Science Applications International
Corporation
Guest Presenters and
Members of the Public
Dr. David Butler
Ms. Sonia Cheruvillil
Ms. Jennifer Cohen
Ms. Amy O’Connor
Dr. Marian Pavuk
SpecPro, Inc.
Ms. Mary Paxton
Ms. Jaclyn Petrello
Exponent, Inc.
Dr. Robert Sills
National Institute of Environmental Health Sciences
Mr. Rick Weidman
DEPARTMENT OF HEALTH AND HUMAN
SERVICES
FOOD AND DRUG ADMINISTRATION
Ranch Hand
Advisory Committee Meeting
Certified Verbatim Transcript

[CONVENE
M. STOTO: There we go.
Everyone, please remember to turn your microphone on before you
speak. I’m Mike Stoto, the Chair of the
Committee. I’d like to call the meeting
to order. David Butler, who’s going to
be presenting the report from the Institute of Medicine needs to leave by a
certain time, so I want to make sure we have that discussion and the subsequent
discussion from the Air Force that relates to it as soon as possible. So I think we’ll try to keep this first part
relatively brief and come back later to finish up things that we might have to
do otherwise.
So let’s begin, if we could, by just
going around the table and then the room with people introducing
themselves. I’m, as I said, I’m Mike
Stoto, the Chair of the Committee and I work at the Rand Corporation.
P. CAMACHO: I’m Paul Camacho and I’m at the William
Joiner Center at the University of Massachusetts.
L. SCHECHTMAN: Okay.
I’m Leonard Schechtman, FDA’s National Center for Toxicological
Research, Deputy Director for Washington Operations, and the Executive
Secretary of the Ranch Hands Committee.
S. LEFFINGWELL: Sanford Leffingwell. I’m a consultant in occupational and
environmental medicine, formerly with Centers for Disease Control.
R. TREWYN: Ron Trewyn, Kansas State. I’m here to be as far away from Paul as
possible so we behave ourselves today.
D. JOHNSON: Dave Johnson, Florida Department of Health,
Executive Medical Director for the Division of Environmental Health and Acting
State Epidemiologist.
E. HASSOUN: Ezdihar Hassoun, Professor of Toxicology, the
University of Toledo.
K. OSEI: Kwame Osei, Professor of Medicine, Chair of
Division of Endocrinology at Ohio State.
R. SILLS: Robert Sills, head of molecular pathology,
National Institute of Environmental Health Sciences.
J. ROBINSON: Julie Robinson, I’m the Branch Chief for the
Air Force Health Study.
K. FOX: Colonel Karen Fox, Principal Investigator for
the Ranch Hand Study.
K. CAMPBELL: Kim Campbell, Food and Drug Administration.
D. BUTLER: David Butler, National Academy of Sciences,
Institute of Medicine.
M. OWENS: Maurice Owens of Science Applications
International Corporation. I’m a Program
Manager for the Ranch Hand support contract.
J. MINER: I’m Jay Miner, Operational Technologies. I work in the Air Force Program Support
Office.
W. GRUBBS: Bill Grubbs, also with SAIC. I work with Dr. Owens.
M. YEAGER: Meghan Yeager, SAIC.
M. PAVUK: Marian Pavuk, SpecPro Corporation. I work on the Air Force Health Study.
S. LEVY: Lieutenant Susan Levy. I’m the Deputy Program Manager for Ranch
Hand, the Human Systems Group, at Brooks City-Base.
M. STOTO: Okay.
Thank you, everyone. Okay. Did everyone get — introduce themselves? Yes.
Okay. Len, you want to begin with
the household — housekeeping items?
L. SCHECHTMAN: Household is good. Okay.
We’re — we don’t really have very many housekeeping items today. We — I just want to inform you that we are
going to have a working lunch so that we can get through this agenda and I will
be reading the conflict of interest statement before we — before we get
started. But I do want to point out that
I’d like everyone to be thinking about future meetings or meeting singular
before the closure of the — of this effort.
So we will get to that item toward the end of the meeting, but please be
thinking about it as we progress through today’s agenda.
Okay. The following announcement addresses the
issue of conflict of interest with respect to this meeting and is made a part
of the record to preclude even the appearance of such. Based on the agenda submitted for today’s
meeting, all such government employees have been screened for their financial
interests related to the topics at hand.
FDA has determined that all financial interests and firms regulated by
the Food and Drug Administration present no potential for a conflict of
interest at this meeting.
In the event that the discussions
involve any other products or firms not already on the agenda for which a
participant has a financial interest, the participants are aware of the need to
be excluded from further participation.
Such an action will be noted for the record. In the interest of fairness, all other guest
participants are asked to address any current or previous financial involvement
with any firm whose products upon which they wish to comment.
M. STOTO: Okay.
Thank you. Since we don’t have
any products, we’re talking about that’s not as relevant. But conflict of interest is an important
issue, so I’m glad that we had a chance to do that. I think we’re going to hold the approval of
the minutes until later so we can get right into the — into Dr. Butler’s
presentation. So David, if you’re ready?

D. BUTLER: Good morning, everyone, and thank you for
accommodating my schedule by allowing me to present first thing this
morning. There we go. I have prepared a set of slides; I also have
copies of these slides should anyone need to take a look at them. What I’m here to talk about is an interim
letter report from the committee on the disposition on the Air Force Health
Study, a National Academy of Sciences, Institute of Medicine study that was
tasked to address the disposition of the AFHS.
I will just run through these
quickly since everyone has seen these slides before. They’re our standard opening slides on what
the National Academies is, and specifically, what the Institute of Medicine
does. As I’ve mentioned before, we have
a process whereby we form volunteer committees of experts and write reports
based on their systematic review of available scientific evidence. Those reports are then subject to an external
peer review.
The Congress tasked us, and more
specifically, tasked the Department of Veterans Affairs to ask us to address
five separate topics related to the Ranch Hand Study: the scientific merit of maintaining the data
assets collected in the course of the study; whether or not any obstacles
existed to maintaining those data assets; the advisability of providing
independent oversight of those materials past the time of the scheduled end of
the study and the mechanism for doing so; whether there should be any further
study of these materials; the advisability of extending the study itself, and
if so, who or what should be responsible for extending the study; and finally,
the advisability of making the materials collected in the course of the study
available to outside researchers.
In order to accomplish this task,
the committee on the disposition of the Air Force Health Study was formed. You’ll see the names of the individuals
there. Their expertise ranges from
epidemiology through biostatistics, occupational environmental medicine and
bioethics.
The interim letter report that I’m
talking about today is a very small document and it’ll probably take longer for
me to talk about it than it would take for you to just sit down and read
it. It is a highly focused document that
addresses only one component of that charge that I just ran through a moment
ago, specifically whether or not any obstacles exist to retaining and
maintaining the electronic data, the paper records that have been rendered in
pdf form, and the laboratory specimens that have been collected in the course
of the study.
The committee — and you’ll note most
of what I have here is in quotes both because it makes sure that I get things across
clearly and also because it saves me trying to rewrite what’s already been
written anyway. The committee thought it
was important to offer its findings, conclusions and recommendations on this
topic alone because they were aware of the fact that the time clock on the
study is running very rapidly and very loudly at the moment. And they wanted to make sure that their
recommendations would have a chance to be considered while the individuals, the
investigators with the AFHS who are most familiar with those data assets and
the funding to support them were still available.
In gathering information for this
letter report — and I should add the final report that we’re working on — the
committee held meetings earlier this year, including workshops where we invited
parties, including Dr. Stoto, to come and talk with us and also conducted a
subcommittee visit to the research facilities in San Antonio in May. We also asked a number of questions to the
AFHS staff, which they were terribly patient about answering. And we really appreciate all of the efforts
that they have put forward to make sure that we got all of the information that
we requested.
Two working groups went to San
Antonio and they looked separately at the data and at the laboratory
specimens. I’ll start out with the
bottom line and then just drop down into a little bit of detail that’s in the
report. The bottom line was that the
committee found that the data and the specimens had been maintained at the level
typical of most epidemiological research.
Now because this is a study that’s
gone on for so very long, the state-of-the-art has changed over the time;
computer programs have changed; the ability to manage data electronically have
changed over time. And as a result, you
have a data set which was collected at various points in history and is in
various states of electronic documentation.
The subcommittee noted that study personnel weren’t tasked with
rendering all of those data assets accessible to outside research — researchers
over time and that their findings concerning it should not be viewed as a
criticism of the AFHS staff.
Instead, what they found were a set
of working principles for managing and analyzing the data and specimens that
works very well for the AFHS investigators.
Every — the committees, the subcommittees asked staff to go through a
series of exercises that were intended to elicit how easy it would be to access
certain data and to analyze that data.
To do so, what they did is they asked staff to write a small SAS program
to randomly draw case numbers from five of — five Ranch Hands and five
comparison subjects and use those case numbers as sort of the example
population for the particular exercises.
In the course of going through those
exercises, the committee found that data, especially data that had been
collected earlier in the studies wasn’t necessarily documented in electronic
forms. So if you were wondering what
particular code was associated with a variable that had been collected in an
early stage of the study, you might pull out a book where it had been — that
information had been hand-annotated.
Over the course of the study, the
collection of variables changed.
Variables that might have the same name over the course of the study
might’ve been coded in different ways over its history. That’s, again, researchers responding to the
incentives and the local conditions when they were doing the work rather than
looking to do some grand overarching data set.
With the laboratory specimens, a
system has evolved whereby the data were, at the time the committee was there
in May, where you had to go through a two-step look-up process to find a
particular sample: both consulting an
original database and then consulting exceptions to that database that had
occurred over time as specimens had changed because a particular freezer
might’ve failed or a specimen otherwise had to be moved.
The committee found, after its
review of the subcommittee information and its review of the reports and other
documentation that had been prepared over the course of the study, that the
medical records, other study data and laboratory specimens — you’ll notice I
echo those words because those are the words that are in the charge — collected
in the course of the study have been properly maintained. But they are not currently organized or
documented in a manner that would allow them to be easily understood,
evaluated, managed or analyzed by persons outside of the AFHS.
Therefore, the committee concluded,
again addressing a specific item in the charge, the present state of the
documentation and organization is an obstacle to retaining and maintaining
these materials once the currently scheduled termination date of the study
occurs. The committee therefore formed a
primary recommendation that actions should be taken prior to the scheduled
termination date to reorganize and document the data assets in a form and
format that does allow them to be easily understood, evaluated, managed or
analyzed by people outside of the AFHS staff.
It proposed a number of specific
recommendations separately addressing the electronic and paper records that
have been rendered in pdf form and the laboratory specimens. For the data, first of all, they proposed
that a comprehensive inventory of master data files be created. Let me explain what that means. Over the course of the study, a rather large
number of data files had been collected or generated. These include the raw data files that were
the original input for these data, the cleaned up version to those files that
were used for — as the basis of analyses, and files that were generated in the
course of particular analyses.
What the committee refers to as
“master data files” be the — that subset, that small subset of the rather large
number of files generated over the course of the study that staff consider to
be the definitive files, the files you would start every study with if you were
going to conduct a new study. And what
they’re asking here is that those files simply be identified in a clear manner
and inventoried. So if one wanted to
look at pulmonary assessment data from Cycle 3, you’d be able to pick up a book
and immediately say this is the definitive file you would use to study those
data.
Second, to create a comprehensive
inventory of the variables contained in the master data files. Now this is something that has been done over
the course of the study, but not necessarily consistently over the course of
the study. The committee wanted to make
it clear that a number of their recommendations stemmed from looking at
materials that had been prepared as part of one cycle’s examination or another,
but weren’t necessarily identifiable in easy — in an easy way in other cycles.
A comprehensive inventory of
variables — the data dictionary that was produced for the Cycle 6 examination
is an example of the document that they’re looking for there: something that tells you what the variable
names were, what the descriptions are, what the codes were used — the codes
that were used to summarize the data that were collected and the like.
A master data code book containing
the name of data variables — this is basically a document that would be
generated from the requests above it, simply having sort of a one-stop shop
where the files and the variables were associated in a single document so that
somebody looking to do a particular analysis over time or of a particular cycle
would be able to identify those pieces of information they needed in order to
do the work.
Finally, for the documents that have
been scanned into image pdf files, a document containing the content, format
and location of those materials. Again,
what we’re not talking about is something where you go through the — Joel liked
to talk about the “linear mile” of paper — not a document that goes through
every last piece of paper there, but simply the type of materials that the AFHS
investigators prepared in response to questions to us when we asked about how
those information — that information had been inventoried to begin with.
This is not an effort, the committee
wants to make clear, where it believes you would need to go back through every
one of the thousands of data files or the thousands of reports and rewrite them
or make every last piece of information consistent. Instead, this is a documentation effort: take those key pieces of information, the key
documents which have, in some cases, already been prepared, and identify them
clearly and say this is the definitive piece of information you want to pick up
if this is the thing you want to analyze in the future.
As I said, the committee noted that
some of these documents already exist in some form and the documentation for
the later examination cycles exhibits many of the features that the committee
suggests. The concern — their concern is
simply that information for all the cycles be compiled into easily identified,
definitive reference documents with uniform information content. And what I didn’t write down here, but which
the committee suggested, is that these be in an electronic form, searchable pdf
files, for example, that would facilitate someone finding a particular piece of
information that they were looking for.
The committee also had a few
suggestions regarding laboratory specimens.
Let me cut to the bottom line here before I go through these. These recommendations were based on the state
of the laboratory specimens at the time the committee visited. The committee understands that since then,
there has been a reorganization of those samples which addresses many of the
items that are spoken of in the report:
to do an inventory and create a single specimen database.
The committee also suggests to
compile the information regarding specimen history into a reference
database. If someone is going to — were
to want to analyze these specimens in the future, they would want to know what
the specimen history was to be confident that they could do good analysis work
and to compile all the protocols regarding the receipt, the maintenance, the
dispersal and the return of the specimens where specimens had been sent out to
other investigators and have not yet been destroyed into a single reference
document to document the status of those to performed — perform the planned
re-assay to aid in the evaluation of specimen stability and condition.
We’re looking forward to hearing the
report on the progress on that today.
And simply in the reorganization, to make sure that individual samples
are documented so that someone looking at them would know when they had been
collected if there are any vials that aren’t already marked with that
information.
As I noted, the committee said that
they were aware of the re-inventory and physical reorganization of the
specimens and said that it was in agreement in the effort since it achieved the
goals that it was looking for. The
committee drew one final recommendation concerning these. We understand that the recommendations that
are being offered are not costless and do involve time and staff commitments
when there’s very little time left.
The committee recommended that the
Air Force, as custodian of the research materials, take responsibility to
ensure their proper documentation and their organization for historic reasons,
and also to allow the possibility of future use, and indicted that if available
program funds weren’t sufficient to accomplish the actions that the committee
recommended, that supplemental funding be provided to carry out such work in a
complete and timely manner.
This is only one small part of the
committee’s final report on this topic, which is in advance stages of
completion and which I’m working at basically on any moments that I’m not
devoting to other things: eating,
sleeping and the like. We are working to
complete this report as quickly as possible and get it out so we can have
conclusions on all of the topics that the committee was charged with addressing
available for the consideration of the Congress and other parties.
The complete report is posted for
download at the National Academies Press web site. That address will take you to a page that
will allow you either to look at the report page-by-page on the web or allow
you to download your own pdf copy of it after you provide your e-mail address
or somebody’s e-mail address to NAP.
And as before, this was part of a
larger research effort regarding veterans’ health that the Institute of
Medicine has been conducting at the behest of the Department of Veterans
Affairs and others. And we have a
comprehensive web site which pulls all the information from these disparate
projects together so that people looking for information can, we hope, find it
easily. That’s the end of my
presentation. I’d be happy to take
questions.
M. STOTO: Okay.
Thank you very much, David. Are
there questions from the Committee? Ron?
R. TREWYN: It would appear based on the fact that the
recommendation at this early stage is to reformat both the, you know, some of
the aspects reorganized for both the data and the specimens that we can
probably anticipate at the end of this that there’s going to be a recommendation
that the materials be maintained and be available to other than Air Force
personnel. Otherwise, this initial stage
probably would not have been recommended early on. Is that roughly a fair assumption?
D. BUTLER: Well, the committee makes clear in the
interim letter report that it reaches no specific conclusion on that topic in
this report. It notes that whatever
recommendations it offers and whatever policy decisions are taken in response
to those recommendations, the committee believes there’s merit in doing a
complete documentation of this data set.
If nothing else, the committee understands that the electronic and paper
records are subject to review by the national archivists for possible inclusion
in the National Archives. That’s an
activity that’s entirely outside of this committee’s mandate.
The committee suggested that if for
no other reason than to ensure a complete and thorough review of that issue by
the national archivists that complete documentation was appropriate should the
national archivists choose to make this — these data part of the archives. Having complete documentation would also
facilitate its use at some point in the future were the materials to be made
public.
R. TREWYN: Can I follow up just one more thing on
that? I guess the reason for my — I just
turned it off. Now it’s on? Okay.
I guess the real basis for my question is because it would be very clear
that this would be a costly and time-consuming process between now and the end
of the — end of the study.
And it would then, I think fairly
obviously, mean that the Air Force would need to be directing as many of the
unexpended resources as possible to this process, which would probably mean
they would be putting less resources toward writing up additional things for
publication. And so then the outcome, if
then the ultimate outcome was, “No, we’re going to then destroy everything and
whatnot, it” — then there are some significant, potential concerns. Those are — those are not necessarily great
alternatives then if, so ...
D. BUTLER: The Committee understood this and this is why
they explicitly recommended that the Air Force allocate additional funds to
manage these activities, you know.
M. STOTO: And Ron, you may want to ask that question
again when the Air Force responds.
R. TREWYN: Right.
I may do that.
M. STOTO: Yes.
D. BUTLER: Yeah.
M. STOTO: Robert?
R. SILLS: And I probably should know this, but as I was
listening to your presentation, I thought the committee has done a really good
job of identifying the issues and helping us solve them. The question I had is, do we have a home for
the study? Is it the National Archives?
D. BUTLER: That is a topic that the committee will
address in the final report. We were
specifically charged with making a recommendation for a future home should the
committee conclude that additional data analysis activities were appropriate.
R. SILLS: And the reason I brought this up is it seems
as though since we are — since the committee’s recommend — recommending, which
I think is very, very important, that the data is accessible is to have the
parties who are going to be the home of the study working with the — with the
group that’s organizing the data so that — so that there’s a smooth transition
and the new party could — will have — will be — will know exactly where those
records are and how to access them. So,
you know, an important part of this process was, if possible, would be to have
both groups working together so that, you know, we could really use this
important information.
D. BUTLER: Well, the committee asked for a set of
documenting activities which it intended to result in generation of a — of a
bunch of pieces of information that would allow anyone looking at the records
in the future to understand the material that’s there. Clearly, there is a tremendous amount of
knowledge and expertise embedded in the AFHS staff on these data. The committee was hoping that some of that
information might be committed to paper for future use.
R. SILLS: Thank you.
K. OSEI: Robert, Michael, the — at the end of the
study, where will — who will be or what will be the owner of the database? Is it going to still be AFHS or some other
body who may have no connection to this study at all? And not being part of a study and just going
to look at data without some connection to AFHS may create problems in even
designing the potential of the data. So
if you could help us with a recommendation or discussion about the ultimate
ownership and the home for this?
D. BUTLER: That’s a topic of the committee’s final
report and until that report has been reviewed and finalized, I can’t get into
the committee’s recommendations concerning that. We were charged with offering such
recommendations, and again, no matter what we recommend, we are not the
policymaking body in this particular respect.
We are simply — we will offer recommendations that can be considered by
the Congress and by other parties. And
the committee felt, again, that no matter what they recommended and what policy
decision was made that it was important to ensure that there were complete
document — there was complete documentation at this point.
K. OSEI: Okay.
So what — who will be the final, you know, body that will decide that?
K. FOX: We don’t know.
D. BUTLER: Yeah.
K. OSEI: Oh, you don’t? Oh, okay.
D. BUTLER: That’s a topic for the final report.
K. OSEI: Okay.
All right.
M. STOTO: And then clearly, we’re going to have to
schedule another meeting of our Advisory Committee too once that final report is
out in the next couple of months to discuss this further. Paul?
P. CAMACHO: I have two questions I guess. Can you tell us what progress, or ideas or
comments have been made by your committee about number five, “the advisability
of having outside people look at this?”
And once you make your final report, let’s just pretend some — several
groups or this group says, “No, we don’t like that. You should be making a change.” What are the chances of modifying your
opinions after you’ve made them?
D. BUTLER: The committee’s report is the committee’s
report. Again, we’re not the
decision-making body here; all we can do is offer recommendations. And charge five is one of the things that
will be addressed in that final report.
P. CAMACHO: Are you going to have enough input from say,
stakeholders, about number five?
D. BUTLER: We have been soliciting input from
stakeholders throughout our information gathering process.
M. STOTO: And then, you know, whatever they say, we’ll
have a chance to say we agree or we disagree and it should be something else;
that’s okay. Were there other
questions? Sandy?
S. LEFFINGWELL: I’m wondering if there’s a potential dilemma
arising here. A number of years ago the
National Archives and Records Service concluded that long-term storage of
records should be only paper or microfiche because electronic data formats were
too femoral. When was the last time you
saw a machine that could read an eight-inch floppy? Has that been resolved?
D. BUTLER: I can tell you that I spoke with the
archivist who is responsible for storage of electronic data sets at the
National Archives. The Archives have
come out with a set of recommendations for how electronic data should be
formatted and what media it should be placed on for submission to the Archives.
My understanding is that this is an
evolving standard at the moment, but they do have an explicit set of
recommendations right now for how electronic data should be submitted to
them. And if you go to the Archives electronic
data section, you’ll find they now have a rather large number of sets,
including epidemiologic data that they make available. They are strictly an archive though; they do
not do anything in the way of support for any of the information that they
hold.
M. STOTO: Okay.
Other questions? Well, great,
thank you very much, David, for joining us today and ...
D. BUTLER: Thank you.
M. STOTO: ... I know that either you or one of your
colleagues will stay ...
D. BUTLER: Yes.
M. STOTO: ... for the rest of the discussion.
D. BUTLER: Amy O’Connor, who is here in the corner, a
research associate for this study will be here for the entire length of the
study. And she’ll try to help you with
any questions that you may have because I have to take off.
M. STOTO: Okay.
Thank you.

M. STOTO: Let’s now turn to the Air Force. We have a presentation from Dr. Pavuk on
specimen viability and I think that’s next on the agenda. Is that — you’re ready to go?
M. PAVUK: Good morning, everyone. As most of you know, in the course of the Air
Force Health Study, a lot of biological specimens — be it serum, urine, adipose
tissue, blood and some other samples — were collected. Most of those were serum samples. Some of those samples, the study, first
physical examination was in 1982 has been stored for more than 20 years. So the logical question arise, how will the
samples be preserved and what are some of the samples could be used for the
research?
This study was not designed to
evaluate comprehensively all the samples and answer all the questions on all
possible methods of how the samples could be analyzed for different
analytes. We have selected one of the
technologies that looks — which is called “multi-analyte profile” done by Rules-Based
Medicine that looks at proteins in the serum.
And we were interested whether this technology could be applied to assay
biochemical parameters in the frozen specimens and whether these could be used
for studies by other investigators.
This study was limited in
scope. As I said, 25 samples were
selected from five randomly selected veterans who have attended all five
examinations between 1982 and 1997. So
we wanted to have one sample, so we wanted to look at the sample throughout the
period. And we also wanted to select
veterans that had multiple samples so that we do not select veterans that have
just one serum sample for the particulates — particular cycle of examination,
and that sample is destroyed and cannot be used for further examinations. So all of those veterans had multiple
samples.
Multi-analyte profile testing was
developed originally by Luminex Technology, which part of that group then
became Rules-Based Medicine and Rules-Based Medicine in Austin, Texas now
performs those analysis. Those are
high-density quantitative immunoassays basically that allowed for
identifications of biomarker proteins and can be used for comprehensive
evaluations of protein expressions that could be indicative of exposure to
disease, drugs, environment and other factors.
I have a list of analytes that I can
provide to you. There’s 177 analytes;
there are 78 specific serum antigens, 43 autoimmune serologies and 56 infection
disease serologies that can be tested all in one complex analytical procedure. We were intrigued by that, by the complexity
of it and that you can do all those things at once, and also by the fact that
you need only 100 microliters of the sera and the samples then can be returned
back to Air Force Health Study.
I’m providing just very brief
overview; this is not details of the technology of what is involved. But basically what I already mentioned, that
the technology basically employs immune bioassays and then they use a very
ingenious system of dyeing polystyrene microspheres using high-speed fluidics,
and digital signal processing and sets of lasers that exacts those dyes from
the — from the dyes. As I said, there’s
a set of dyes; there are specific dyes that permeate.
The polystyrene microspheres are
coded and create a set that can be specifically recognized, at least 100
different specific dyes. And those
microspheres are then covered with capture antibodies that react with the
target proteins you want to measure. And
then the assay — when the assay’s complete, the microspheres pass through a
single file through two lasers. The
green laser — or the red laser exacts the specific dye that identifies the
analyte and then the green laser exacts different dye that enables the
quantification of the result.
At this point, all those samples are
selected and ready to be shipped to the laboratory and they are very, very
close to the completion of the contract activities so that those could be sent
to Austin and analyzed. This can be
analyzed in a — in a — there’s a short turnaround time for the analysis
proper. And once the samples are in
Austin, we should get results back within about three weeks.
M. STOTO: Okay.
Thank you. So I guess a couple of
things: one is I hope that if we
schedule another meeting to talk about the results from the IOM study that we
hear results from this one and ...
M. PAVUK: Well, we were hoping that, you know, that we
could have something ...
M. STOTO: Okay.
M. PAVUK: ... because the time — once it’s sent out, we
could get results pretty quickly.
M. STOTO: Right.
M. PAVUK: But it’s — it’d be around April to finish the
contracting processing.
M. STOTO: So is — if the IOM finishes in January and we
schedule a meeting in February, will this be ready in February?
M. PAVUK: I hope so.
K. FOX: We expect it could be, yes.
M. STOTO: Okay.
M. BLANCAS: The contract has been fully negotiated.
RECORDER: Could you use your microphone, sir? I have to record every word.
M. BLANCAS: Am I on?
I spoke to the buyer on the contract and she informed me that the
contract had been negotiated as of the day that we left, which was two days
ago. All they were waiting was to actually get into the system, electronic
system, and go ahead and issue the copies of the contract. So have you heard something similar to that?
M. OWENS: I have not.
M. BLANCAS: But it should be, in fact, maybe as I speak,
it’s already been issued.
M. STOTO: Okay.
We don’t need to go into the details.
I think it’s just clear that it’s important that that be ready and it
sounds like it could be. There shouldn’t
be any — now coming back more to the substance, I know enough about the
laboratory spheres as I ought to. But I
guess the question I would ask is, suppose it turns out that the samples do
well in this analysis. How much can we
extrapolate from that, you know? What I
mean is ...
M. PAVUK: Well ...
M. STOTO: ... is this — is this a narrow or a broad
question?
M. PAVUK: ... as I said at the beginning, I think the
study is limited in scope and will add some further information to what the
sample can be used for. So it will
specifically answer that if it turns out good that this particular technology
can be used for it. It will not answer
the question on the other technologies.
But I think more generally, if the samples from ‘82, ‘85, ‘87 turn out
well, I think it will suggest that the preservation was good and that the
degradation of proteins in stored serum is not so bad. I think it will be positive and it will add a
little bit of, you know, let’s say, you know, a little bit confidence to the —
to the storage process of the samples.
M. STOTO: Okay.
Ron, did you have a question?
Ron?
R. TREWYN: Why only proteins? Why not look at other ...
M. PAVUK: Well ...
R. TREWYN: ... components?
M. PAVUK: ... that’s a very good question. I think we’ll get the proteins from the point
that I think it’s overly, generally accepted that DNA inside the cells
preserves better than proteins outside of cells, that they may degrade
more. So we opted to look at proteins. We believe that DNA is probably more likely
to be well preserved.
K. OSEI: What was the process you used to select this
company for this project because obviously, there were some competitors? There has to be a reason why you thought this
was a better company or method to accomplish the mission that you wanted, you
know, you proposed to solve.
M. PAVUK: I was not involved in detail in the process
of selecting the company. But the
Rules-Based Medicine did have a presentation at Air Force Research Laboratory
at Brooks City-Base, and at that point, not connected to Air Force Health
Study. And that’s a public presentation
that members of the study attended and that’s how the Rules-Based Medicine came
to their attention. I cannot
specifically answer you what are the day-to-day variables how this was decided.
M. STOTO: I think that the question probably is a
little more general than the choice of the specific company. It’s the choice of the technology ...
M. PAVUK: Oh.
M. STOTO: ... which this company owns, I think. Isn’t that ...
K. OSEI: Yeah, that’s what ...
M. STOTO: Yeah.
K. OSEI: Yeah, the technology that you’re using
because this fancy technology is probably not available ...
M. PAVUK: Right.
K. OSEI: ... to a lot of commercial ...
M. PAVUK: Well, from just the technology point of view,
when you look at the proteomics, I think we narrowed the — our interest to
proteins. And the other technology that
we looked at would be based on, you know, high-resolution mass spectrometry,
some sort of analysis that you can use of getting protein profiles where we do
not exactly know what those profiles mean.
So we opted for this technology, at
least provides, you know exactly what you measure. And we can also confirm, we can also compare
— although I don’t think it’s our primary goal — but we can compare the results
if there are some results to the previously measured parameters from the Air
Force Health Study, which some other technologies would not enable us to do.
M. STOTO: Do you have a — Kwame, is there something
else that you would like to suggest or ...
K. OSEI: You know, because I don’t know much about the
technology, so I think it’s coming from my naiveté of knowing what you’re
getting out of this. And, you know, and
the question came, is it simplicity or it’s comparable to other laboratory
technology? Because at the end of the
day when we’re going to measure, if you give it to — the samples to other, you
know, investigators, they’re not going to use the same technology, so I don’t
know what they’re measuring. It may be
viable here, but is it viable to the commercial available assays that we use to
analyze the data?
M. PAVUK: Yes.
This is commercially available.
K. OSEI: Okay.
M. PAVUK: I mean, this is not some experimental
technology.
K. OSEI: Okay.
M. PAVUK: I mean, this is — this is commercially
available for several years being tested and the result of the antigen testing,
and serum analysis and infectious antigens, those correspond very well or very
close to currently gold standard technologies.
So that’s the advantage; that here you can do it all at once and you get
results that are very similar to other standards that are currently used in
other laboratories. So that was — that
was the advantage.
P. CAMACHO: Just a question, this can be compared and ...
M. PAVUK: Yes.
Yes.
P. CAMACHO: ... but with other standards ...
M. PAVUK: Yes.
P. CAMACHO: ... and other people and replicated and so
forth?
M. PAVUK: Yes.
D. JOHNSON: I think I’m going to ask the same question a
different way.
M. PAVUK: That’s why we’re here.
D. JOHNSON: Is there any literature that, you know, that
shows that this relates to the accuracy of the other parameters that are going
to be tested for? I mean, is there
something that shows there’s enough correlates with ...
M. PAVUK: Yes.
D. JOHNSON: ... the viability of all of the other things
that might be — you understand my question?
M. PAVUK: Yes. I
think yes; that they did publish studies like that that showed that their
technology measures what other ...
D. JOHNSON: I mean ...
M. PAVUK: ... comparable immunoassay measures.
D. JOHNSON: ... in other words, if I say the — if this
shows the proteins are all good, does that mean all the other types of tests
are — I mean, the other parameters that could be tested in blood are probably
also reliable? I mean, does this somehow
correlate or has there been any studies to show that this correlates with the
other things that you might test for in blood?
You understand my question?
M. STOTO: Let me — let me try to ask it this way. I mean, I can imagine that you try to do this
and then you find out that the — that the proteins have just degraded ...
M. PAVUK: Right.
M. STOTO: ... which means that nothing else will work
in future presumably.
D. JOHNSON: Not necessarily.
M. PAVUK: No.
No, not necessarily.
D. JOHNSON: Not necessarily.
M. PAVUK: If this doesn’t work ...
D. JOHNSON: And that goes both ways.
M. STOTO: Right.
D. JOHNSON: The proteins might be good, but some tests
might not work.
M. STOTO: Right.
D. JOHNSON: The proteins might be bad, but there still
might be a lot of useful data there. So
I just wondered how much literature there is to correlate those?
M. PAVUK: Oh, now I understand the question. That, I think, is really hard to say
specifically. I don’t think that if this
doesn’t fail or even if it is successful, will not tell us how well it
correlates with some other things that we could get from those sera, you
know. Let me maybe compare, you know, if
you do the studies, let’s say, on stability of DNA, you know, they’ve been
stored for a long time, it will not answer your question. But if that DNA was irradiated, you know, and
— but it degraded too, you know, so I don’t know. This — it probably will not.
M. STOTO: Ron, you wanted — oh, Robert?
E. HASSOUN: Is there any way that some of the tests or
some of the assays could be repeated and compared to what we previously — what
you previously found and confirmed?
M. PAVUK: Yes.
Yes, we hope so. Yes, we hope
so. That’s the — that’s the ...
E. HASSOUN: Yeah, that’s not confirmed.
M. PAVUK: Because this, for example, you know,
measures, you know, levels of some hormones and some of the antigens that were
measured in the Air Force Health Study previously. So we can look at the, you know, ‘87 or ‘92
results and look or, you know, well is it, you know, in the same range or
not? But I don’t think that that is the
primary focus because, you know, this is different method used for the
measurement of the same thing that was done probably in ‘92.
But yes, we can look at the same
analytes and compare the results. As
there are 177 analytes, we probably will not look, and look at each of those
and compare how the results compares from ‘82 to ‘85 to ‘87. I don’t think we have the time or scope to do
that at this point of the time. But yes,
for some interesting ones, you know, we’ll certainly do that and look for more
common ones if we do get results.
M. STOTO: Robert?
R. SILLS: So I just want to make a couple of
comments. I think this work that you
guys are doing is very, very important.
The serum samples, you know, are samples which will be very useful in
the future. And I think as the Committee
is saying, I think one of the strengths of this is, is you’re looking at ‘82,
‘85, ‘87, ‘92 and ‘97 and we’ve got a good idea as to how the samples held up.
But I think as we — as we progress
with the study with the short time frame we have, I think it would — I think we
need to look broader at not only protein, but a DNA/RNA protein just at all
three levels just to — it would be informative for people who are going to use
the samples in the future to have that information. I think that will be very informative for
additional information about what some of the disease endpoints, you know, this
information would be helpful in terms of addressing future disease endpoints.
And so I think as we — as we — as we
think about this as Mike said, a meeting to discuss the results would be very,
very useful as to how we proceed in understanding, you know, how well these
samples held up for future research ...
M. PAVUK: Yes.
Well ...
R. SILLS: ... on important — on important health issues
to the veterans.
M. PAVUK: ... I have, you know, I have — this effort,
you know, have been suggested almost two years ago. And at that time, this discussion that
happened, you know, well, why is it only proteins? So let’s do DNA; let’s do, you know, all
sorts of things that you can do with the stored samples. The study as it is, you know, it’s not
designed to, you know, kind of come up with an idea and well, how much do you
need? Well, $150,000 to test, you know,
15 samples for something.
So, you know, we — at least from my
point of view and, you know, I cannot talk for everyone what the reasonings
were two years ago or a year ago — we didn’t, at this point, didn’t look at
some comprehensive evaluation of the samples.
We looked at least a peak to the samples that are stored and doing at
least some sort of viability study. As
you can see, we are in November, December 2005 and we are still contracting on
this one. So that may answer some of the
questions.
M. STOTO: Okay.
Two comments; you just led into one of them about this is called the
“viability study.”
M. PAVUK: Right.
M. STOTO: And that it turns out that really is one
specific aspect of viability we’re looking for.
And I guess I wonder if you are drawing samples, you know, these 25
samples, and I imagine that this technology is complex and so on, but there may
— there may be some other simple testing
that can be done with those same 25 samples that test other aspects of
variability — viability.
So that’s one question, is whether
that might — something along those lines might be feasible and make sense in
the same time frame? I don’t know what
the — I don’t know what that might be.
The other — the other issue is that you mentioned that there are — there
are 177 analytes and you ...
M. PAVUK: Yeah.
I have a — I have a list.
M. STOTO: Well, I don’t want to see the list. But my — but that — and you couldn’t — and I
agree that you couldn’t afford to all — look at all 177 of them, you know, by
January and compare them to the other results.
But it probably would make sense to think in advance, you know, what are
the five or ten most important ones ...
M. PAVUK: Yes.
Yes.
M. STOTO: ... to do and to have — to have a protocol
along those lines. I’m not sure if we
can contribute to that. If we could, I’d
be happy to, but I’m not sure. But I
think it’s important to have a protocol for that, so ...
M. PAVUK: That’s a very good idea and ...
M. STOTO: Okay.
Ron?
M. PAVUK: ... we will work on that.
R. TREWYN: Want to follow up on Robert and actually
Michael’s earlier comment because I think this issue of just picking proteins,
if we go back to a — to a comment that Mike made earlier about, “Well what
happens if, you know, the proteases have chewed up most of these and so the
proteins aren’t good?” And one of your
initial assumptions was, “Well, but we’ve figured the nucleic acids are going
to be okay.”
But if you don’t analyze and if you
don’t look at them, if you don’t assess the DNA, the RNA to really know where
it is — and this, I mean, I look at it, it isn’t that this is a highly, a big
broad study. You’re doing, you know,
some — a snapshot. I think you’re using
— exactly as you used the term to see do we feel these specimens were stored in
such a way that they will be useful for future studies and people are going to
want to look at things other than protein?
And so I think that’s sort of where a lot of this is and so at least
having an idea if you’ve got some stability there, I think is going to be
important.
M. PAVUK: I can’t agree more. I mean, that was, you know, that was my first
reaction when this whole thing came up.
But all of that requires, you know, that requires further funding, you
know, or changing what activities being planned. So I don’t know. I can’t tell you at this point whether there
are technologies in other laboratories available or not or how we could proceed
on the things. We haven’t discussed that
with the Air Force.
M. STOTO: Okay.
So, Jay?
J. MINER: Yes, finally.
I would encourage all of you to go out to the Rules-Based Medicine web
site for an overview of their technology and the — and the list of tests that
they do because it’s a very good presentation, and discusses in great depth and
will answer a lot of the questions that you all are asking.
Secondly, on the web site, they also
have made some studies on what they describe as a “phenotype of disease;” that
a clustering of tests that may show an increase in — I believe the study was
done in mice and that’s on the web site as well. Depending on what we find on the first 25
samples, we do have some money in the program to do additional testing for this,
but you’ve got to find out if it’s — if it’s good first.
M. PAVUK: I didn’t get to the — to the opportunities
for this technology, which are wide, you know, from the point of diagnostic
testing and use for, you know, identification of disease profiles and other
things. So I mean, it seems very useful,
very broad range of interests that could be covered with this technology. So it’s not very specifically focused, a
narrow one, but I didn’t want to go into ...
M. STOTO: Okay.
M. PAVUK: ... to the overall use of this.
M. STOTO: I think it’s important to bear in mind a
couple of things, you know. One is that
it’s possible that you can do this testing.
It’ll turn out that a lot of the samples just aren’t any good at all,
which would have very important implications for the disposition of the study,
right? I mean, if it turns that the
samples weren’t good, there’s no point in saving them. I’m not saying it’s likely. I don’t know; I have no idea, but it may well
be that we find something that — and that would be an important thing to know.
M. PAVUK: Well, that was the risk, you know, that we
are willing to take.
M. STOTO: That’s not the risk. That’s not — that will be — that will be a
success in a sense if we found that. I
mean, that was to save somebody a lot of money if that was — that’s a ...
M. PAVUK: I think that that is really a small number of
samples out of, you know, maybe 50,000 serum samples that there are. I think even if like half of them would be a
failure, I think that would still be a success.
I mean, and if all of them failed, you know, I would more say, you know,
that it would be incompatibility of technology than the failure of the sera, so
...
M. STOTO: The point is that this study has the
potential to give us some information that’s very important for the question of
whether or not these samples should be saved.
M. PAVUK: I agree very much.
M. STOTO: That — I think that’s ...
M. PAVUK: Oh yes.
M. STOTO: ... the fundamental thing that we should be
focusing on.
K. FOX: That’s the purpose of what we’re trying to
do.
M. STOTO: Right, and that — I just want to make sure
that, you know, that wasn’t prominent in the discussion. I just want to make sure that everyone really
understands what that’s about. Now there
could be lots of other things that are learned and the possibility that Jay
just mentioned about being able to do follow-on studies after this first 25 is
an important one too. So I think that
that makes it all the more important that we get a good comprehensive report
that really addresses all those issues at the next meeting.
R. SILLS: So Mike, that — I suppose that’s one of the
points I was trying to make; is we’re looking at the protein level and, you
know, what’s your name again, Dr.?
M. PAVUK: Pavuk.
R. SILLS: You know, you indicated that DNA is more
stable than proteins and the issue that we’re looking at here is the stability
of the samples. And so as Mike was
saying and the rest of the group was saying is these are just 25 samples; 25
samples are not a lot of samples and it would be useful to get information
about the quality of the DNA, the quality of the RNA, the quality of the
proteins.
So you’re using — you’re looking at
antibodies here, but you know, there’s simple tests that we could just have,
you know, that information could be made available. So I don’t know what a mechanism is, but I
think if we’re going to look at the quality of the — or samples, I would like
to see not only the protein, but have a comprehensive evaluation of what the
samples are.
So for example, the proteins may not
be good, but DNA may be good. And DNA
could find a lot of information that could translate and you could make
extrapolations to what may be happening in the protein level. So the more information we have, I think the
better it is going to be for the outcome of the study and how this — how, you
know, the next level for this study. So
I, you know, mean, I don’t know what mechanism is available for us to get these
answers as quickly as possible or to — or to include the right analysis.
M. STOTO: I think — I think it’s — what we can do is
make it clear in, as we’ve now done and in the minutes that first of all, what
the purpose of this study is, and second, that to the extent that we’re going
to — that 25 samples are going to be drawn, we should get as much information
out of those as possible and that we need to have — and I mean, I don’t — but I
don’t want to say how we do that, but I think that that’s — that that principle
is what ...
K. OSEI: Mike, I think all what we’re — everybody is
trying to say that you may have proteins, but you may not be able to measure
all the, you know, the specific hormones and peptides. You still can measure proteins, but you know,
but it has — may have no meaning to the specific assays that we are interested
in. Let’s say you measure cortisol in
1982. You want to know that 22 years
down the road you can still measure cortisol.
So you can measure proteins, but it’s not necessarily cortisol. So you will have to be able to specifically
measure the things that the study was designed to do.
So I think generic measure of
protein viability alone probably is not good enough. And I think what we’re hearing, if you had
shown us a slide where you took ‘82, ‘84, ‘85 just to show that with time it’s
still viable, these questions would not be coming up at all. But we don’t have any, you know, clue what
this is about. And I think that’s why
these questions are coming up because I don’t know what you’re measuring;
viability of proteins doesn’t mean much to me.
I want to know is, can you measure cortisol consistently in the same
sample over 25 years?
M. PAVUK: If I understand you correctly, I think that’s
what we are trying to do. We’ll do the
same measurement, you know, in the sample from the same veteran in ‘82, ‘85,
‘87, ‘92. And I have — I wanted to give
you a list of what exactly we’re going to measure in there and I believe
cortisol is on that list too.
J. MINER: It is.
K. OSEI: Yeah.
I mean, using that as an example, but ...
M. PAVUK: Yeah.
K. OSEI: ... we are talking about consistency.
M. PAVUK: Yes. I
mean, that’s the point. You have the
same value from the same veteran from one examination cycle to another
examination cycle, so we’ll do that repeatedly.
Yes.
M. STOTO: Paul?
P. CAMACHO: So in a kind of — for me, a summary would
be: you’re using these — taking the 25
samples. You’re going to — you’re
thoroughly measuring all of these factors that people want you to measure. You’re going to give us — give yourself an
estimate of the quality of these things in terms of how long they might last,
and then you would really have to go back and get a proper sample size.
If that panned out, then you would
have to go back and get a proper sample size to determine the whole — to give
yourself a good knowledge base on the viability of the whole set because you
just said you have 50,000 of these things.
So 25 is far too small, so you — but the 25 is good that you want to go
look at them, right? And you want to find
out the viability of all this, but then would you not have to go back and get
another sample set to be significant?
M. STOTO: It may well be, but I think that — let’s put
that on the agenda for when we ...
P. CAMACHO: It’s just “n” is — because “n” would be a
small number here and I think it’s — it might too small.
M. STOTO: Jay?
J. MINER: And as far as the time lag for a second
sample set, since it’s already on contract, all we have to do is add
money. And as Marian said, the process
of doing the samples themselves does not take long at all.
M. STOTO: Okay.
Well let’s — first of all, thank you.
Let’s wrap this up with the idea that we really think this is important
work that’s being discussed here, and it has the potential for a lot of valuable
information, and that we just need to make sure that we do as much, we learn as
much as we can from these 25 samples as possible, and that we want to get this
reported back soon so we can think about what might — what might happen — what
needs to happen next. Did you — David,
did you ...
D. JOHNSON: I think we’ve covered this pretty thoroughly,
but ...
M. STOTO: Yeah.
D. JOHNSON: ... I think we should thank you for looking
at viability. It’s a critical point;
that it’s not — that it’s not — that you’re not overlooking that and we are
looking at it very closely. But it seems
like this shouldn’t be the first time that people have tried to determine the
viability of specimens and it — there must be some standards or ways to do
this; that it seems like we’re sort of breaking totally new ground in our
discussion here.
It seems there must be certain
methods to try to determine viability for tests that haven’t already been
checked on the specimens. And I just
wonder if that’s — if that’s out there? And that kind of goes back to my question
before; has this protein been correlated with other findings? But I think we’ve probably talked about it
enough for today.
M. PAVUK: Well, you know that some of those samples
were viable. You know, some of the
stored samples, you know, were sent like, for example, to CDC for dioxin for
repeated measured analysis. And they
were viable, you know, some of the stored samples. So that was, for example, done. But I agree with you; I’m not aware of it;
there is some standardized methods of how you evaluate frozen samples.
There may be and we may look at it,
you know, but it — there are some standard procedures like how you
evaluate. Probably, you know, NCA has,
you know, programs that collect and evaluate stored samples and probably they
have some protocols of what samples are, you know, are good, or bad or not
good. But a protocol that somebody else
developed for some other purposes is going to serve well for our purpose is
another question. I don’t know; I’m not
a specialist whether there is some golden standard, you know, for evaluating
frozen specimens for further viability.
D. JOHNSON: Okay.
M. PAVUK: Thank you very much.
M. STOTO: I think Karen is up next?
E. HASSOUN: Just one ...
R. TREWYN: She has a question.
M. STOTO: Oh, I’m sorry.
E. HASSOUN: I wonder if the samples that were collected
from different people were from comparison or from the exposed groups?
M. PAVUK: They were randomly selected. It turned out there were three Ranch Hands and
two comparisons.
E. HASSOUN: Yeah, but if you wanted to ...
M. STOTO: You have to go to the mike.
RECORDER: You have to use the mike. Thank you.
K. FOX: It was three Ranch Hands and two comparisons
that were randomly selected. It was
randomly selected and that’s what came out.
M. PAVUK: Two Ranch Hands, three comparisons.
E. HASSOUN: Yeah.
I thought that if we want to compare between — I mean, do serial
comparisons, it’s better that we base that on — or you base that on control or
comparison groups because we don’t know what the dioxin — if there is — what
the dioxin will do to the proteins, you know?
M. PAVUK: Yes.
At the same time, you know, you’ll get a question, “Well, why didn’t you
look at the exposed group at all either?”
You know, so you can’t answer all questions when you get five-people
group.
M. STOTO: Okay.
M. PAVUK: Okay.
M. STOTO: Thank you.
M. PAVUK: Thank you.

M. STOTO: So Julie is speaking? Yeah.
J. ROBINSON: It’s pretty straightforward. Obviously, we’re going to close 30 — sorry —
30 September ‘06. What has happened so
far is all my civilian personnel have been rifted. What that means of the seven, I’ve lost one
coder. She’s found a job. I have one statistician that also we hope
will be placed soon and the other personnel that are associated with the study
have elected to retire. They were in
that status; that was an option open to them.
It’s interesting when you try to
prepare to close for a study that has another committee that is trying to provide
recommendations on the disposition of that study. So in essence what I have done, have — I
have, with my team, prepared to close the study as though there was not an Air
Force disposition committee making some additional recommendation. So we’re looking at the proper packaging and
archiving of the hard copy records that we have on our participants and where
they would go.
We have been making a very conscious
effort of digitalizing all the hard copy data and we are also digitalizing the
microfiche. If you’ve ever looked at
microfiche, it’s extremely hard to read and very tedious as well to look
at. So we’ve been digitalizing those
ones that are related to our study participants. Additionally, we have talked with, for
instance, Armed Forces Institute of Pathology in regards to storage of
specimens and I also have gotten costs on the disposal of those specimens
depending on the outcome.
So I have kind of two tracks going
along, you know: what is the Institute
of Medicine going to recommend and then what would I do as though there was not
that committee with additional recommendations?
In regards to the two areas that were discussed indeed in relationship
to the specimens, we’re reorganizing them by individual participant and are
well through that process and will have a single database with exactly the
individual, how many specimens of each kind do we have there.
We’re also seeking to have returned
to us adipose tissue that was sent to the University of California at Davis and
as well the dioxin specimens that CDC currently has. All those will be returned to us and
archived. In relationship to the hard
copy materials, the data files, we feel certain that we can definitely take
care of the first two items, which is basically a data dictionary. But now with the additional information from
Dr. Butler, we may actually be able to do all those recommendations prior to
the closure of the study. That’s
it. Any questions?
M. STOTO: Questions from the — from the Committee?
R. SILLS: In terms of the hard copies, is all this
information available in microfiche?
J. ROBINSON: No.
The microfiche specifically are the — sorry — are the personnel records
that as a military member you originally had on — these real little microfiche
shows, you know, where you came into the Air Force, your records of
assignments, of probably even your ratings that you got from your performance
reports. But the medical records of the
participants all have been pdf’ed. Thank
you.
M. STOTO: Well, okay.
Well, thank you very much. We’re
scheduled for a break at 9:45 and it’s 9:45 more or less. So let’s take a 15-minute break; we’ll come
back at 10:00.
[BREAK 9:48
A.M.-10:02 A.M.]
M. STOTO: We’re going to start the meeting
everyone. Please take your seats. Okay.
Is everyone ready to get started again?
Okay. I’d like to get started
again. There are two orders of — two
items on the — on the agenda right away.
First, some people have come in since we started, so I’d like to ask
them just to introduce themselves. You
want to start? You need the mike. Does someone have the portable mike?
A. O’CONNOR: Hi.
Amy — is it on? Hello? Amy O’Connor, IOM.
S. CHERUVILLIL: Sonia Cheruvillil, IOM staff.
J. COHEN: Jennifer Cohen, IOM staff.
M. PAXTON: Mary Paxton, IOM staff.
R. TREWYN: Got a lot of IOM today.
J. COHEN: Yeah.
M. BLANCAS: Manny Blancas, I’m a contractor with the U.S.
Air Force working at Brooks City-Base for Project Management.
J. PETRELLO: Jaclyn Petrello, Exponent.
M. STOTO: Okay.
Thank you, everyone. We have time
scheduled at 11:15 for comments from the public. I just want to ask at this moment if there
are people who are hoping to speak at that time? Of course, we’ll ask again when the time
comes, kind of just for planning purposes.
Okay. Thank you.

M. STOTO: And then the other item that I postponed
earlier was the review of the minutes.
In your — for the Committee members, your blue folder, there is a copy
of the minutes. I think they were — they
were e-mailed to everybody in the last week or so. And this copy reflects comments and changes
that I made and I guess Julie made on behalf of the Air Force, which I also
reviewed. And they were appropriate on
technical grounds and didn’t change the meaning as I remembered it nor do I
think my comments changed the meaning.
So are there comments on the meeting — on the — on the minutes, any —
Ron?
R. TREWYN: I have one other major, major change. On page 11, third line from the top, I
believe it’s supposed to be “review of medical records or death certificates”
not “of death certificates.”
M. STOTO: What page?
R. TREWYN: Page 11, minutes. I think it’s the minutes, yeah.
M. STOTO: What section?
R. TREWYN: Cancer.
J. ROBINSON: What paragraph?
M. STOTO: Yeah, what paragraph?
R. TREWYN: All right.
It’s under cancer, second paragraph, it starts with “The time of onset
for veterans without cancer.”
M. STOTO: Yeah.
R. TREWYN: And it was the sentence that reads “Cancer
was determined by a review of medical records” or death certificates.
M. STOTO: Okay.
Great. Thank you. Anything more substantial than that? Okay.
Would someone like to move and second that we approve these minutes?
S. LEFFINGWELL: Move the minutes be accepted.
M. STOTO: Okay.
Thank you, Dr. Leffingwell. A
second?
E. HASSOUN: Second.
M. STOTO: Dr. Hassoun.
All in favor?
RHAC MEMBERS: Aye.
M. STOTO: I think it seems unanimous. Thank you.
Okay. We’ve done that now.

M. STOTO: So next I think Dr. — that Colonel Fox is on
— up to speak about the history and the — and the comprehensive study?
K. FOX: The Air Force Health Study history, that has
just been let by contract. And what that
is doing is looking from about the time from Buckingham’s book up to the
completion of our study. It, at this
time, it will be in an outline form is what’s been let to contract and we’re
hoping that will be finished around February, middle of February. And then we’ll see if we have enough time to
flush out the full history.
M. STOTO: So who — has the contractor been identified
for that?
K. FOX: Yes.
SAIC has — will be the — Meghan’s actually here that will be writing it.
M. STOTO: Okay.
K. FOX: She’s been involved with the study for quite
a long time.
M. STOTO: Okay.
Thank you. Any other comments or
questions on that or — go ahead.
K. FOX: The comprehensive study, it’s gone through
lots of names: longitudinal, summary
study. The purpose was to document
significant Air Force Health Study findings and we used from the physical
examination reports, the technical reports that have been written and then
publications — peer reviewed publications.
And it was just summarized what we had found and that was given to you
to review.
M. STOTO: Okay.
So are — I mean, I know some of us have comments on that. Should we just go through that page-by-page?
K. FOX: That’s fine.
M. STOTO: And our note taker will take notes on
that. And if you feel compelled to
respond now or later, you’re certainly welcome to do that. So everybody got this a week or two ago and I
propose that we just sort of start charging ahead on page 1-1 and see whether
people have comments. But I have a
number myself on the — on the beginning, but I wanted to give the Committee
members a chance to do that. Maybe, I
guess, let me add one more thing. I
mean, some of my comments are editorial and I think it’s probably not worth
discussing it, but I could provide them to you afterwards.
K. FOX: Please do.
M. STOTO: More — it’s more of the substantive ones I
think that we should discuss here.
Okay. Anything on page 1?
M. STOTO: One thing that I noticed is that at the — at
the end of Section 1.1, line 16 and 17, you talk about the reports from the
examinations and journal articles, but then the citations are only the reports
from the examinations. And the journal
articles come up sporadically throughout the report, but I think it would be
important to treat them more systematically.
I think we’ll hear more about that from Ron later at that point.
I had — I had another comment on — in
lines 19 and 20 is that the history about President Diem and President
Kennedy. I suspect it’s a lot more
complicated than that and that the report would be better just leaving those
things out rather than trying to sort that all out. I don’t think that’s necessary for this — for
this one here about how we came to be spraying this stuff. Okay.
Page 1-2, any comments? Okay, 1-3 or -4? One of the points I made on page 1-4 I guess
in reference to the first paragraph is that the — and this goes back to the
previous point — is that these follow-up reports, the five-year follow-up
reports should all use the same statistical models — the same four statistical
models, but that the studies in the — in journal articles often use different
and sometimes more sophisticated models.
And I think that’s an important point to make here.
I think — I think there’s a tendency
for some people to think that these five-year follow-up reports are the
study. And they’re an important part of
the study, but they’re really not the whole — the whole study. Okay.
Anything else on Section 1 that anybody has? Section 2?
Let’s start on Section 2. Page -1
or page -2? Maybe I should just ask does
anybody have any comments on Section 2?
P. CAMACHO: Was somebody assigned to 2? Nobody did that?
M. STOTO: We were all assigned for these — the first
four chapters. Well, I do; some of these
things are editorial here. Okay. Let’s move on to Section 3, was about
interpretation. This is one where I
probably have my most important — what I think is the most important point, is
the use of statistical significance and so on.
I mean, at one point we said that the plan was not to use that word at
all, which I think was a bad plan and that — and in fact, it is used now, which
I think is good. But I think it really
needs — this section really needs to describe that more carefully.
In particular, what got chosen to be
discussed in the substantive chapters is based in part on statistical
significance, I think, although it’s not really clearly stated there. And I think it really needs a good discussion
about that. Others agree or disagree or
— I mean, in — on page 3-3, line 82 and 83, there’s a statement there: “Some authors suggested that a statistically
significant relative risk greater than 2.0 is cause for concern.” And does that mean that you didn’t discuss
anything? That was, you know, 1.5? I don’t think that’s the case, but you know,
that — that’s basically the only thing that says what gets attention later on
in the report.
And you know, another related area
that we’ve discussed in the past is when there are statistically significant
differences in clinical parameters where, you know, the difference is, you
know, three parts per trillion or something like that, that doesn’t mean it by
itself is not clinically significant.
And I think there probably needs to be some discussion about this
section as well. So I think that’s
handled later on. Is that — okay. Anything else on Section 3?
Section 4 is “Illnesses
Presumptively Recognized as Agent Orange-Connected.” And this is the one that begins by having the
list that the VA recognizes and then talks about, I think, the — I think the
idea is that this talks about the findings from Ranch Hand, from the Air Force
— from the Ranch Hand Study about those issues, which I think is a good thing
to do.
But some of them, you know, acute
peripheral neuropathy, chloracne, porphyria cutanea tarda all are things that
are recognized, but have to occur within one year of exposure, which means that
you can’t possibly have found them in the — in the Ranch Hand Study which
started ten or more years after the — after exposure. So I guess I — I guess my feeling would be
that should be noted and there’s no point really discussing it here because that’s
— it’s just logically impossible to find that in a — no?
K. FOX: Well, you could’ve done it with medical
records review or for the chloracne if you — we looked at it and saw if they
had scars in that distribution. So there
are some things that we could’ve looked — we looked at. But you’re right; it’s a long time afterwards
and we’ve stated that in the — in the chapters that it’s involved with.
M. STOTO: I think it probably — it should be, you know,
maybe one way of handling it here is to say, you know, there are — there’s this
one category of things that really would’ve had to occur before the
examinations began and we looked at the medical records and didn’t find
anything. That’s different from saying
that, you know, we did the examination and didn’t find it. That’s a really, I think, a fundamentally
different thing.
Another category is most of the
cancers where there really wasn’t enough statistical power to find anything in
the Ranch Hand Study for these — for relatively rare cancers. So I think, you know, another — that might be
another — can be treated as a group that way, you know, than focusing attention
here on the things that were found, which were the neural tube defects, spina
bifida and the — and the diabetes, I think, were the — I think that you said
that you could really focus this on the important stuff, the better off it
would be. I’m seeing people nodding
their heads positively. I hope that
means — yeah?
D. JOHNSON: On the title of 4, what are you saying
there? These are illnesses presumptively
recognized as Agent Orange-connected in the study or just in ...
K. FOX: By the Department of the — Affairs — Veterans
Affairs; this is what the Department of Veterans Affairs has recognized.
D. JOHNSON: Through the — from the data in this
study? No?
K. FOX: From all data.
D. JOHNSON: I think that might be clarified a little bit
in that title. Does this — does this
almost make you think that ...
P. CAMACHO: It’s really a — you might consider it like a
quasi-legal definition. This — all this
— this presumption comes from as much veterans’ activity on Capitol Hill as it
did from any study. That’s a fact that
should not be over- or under-recognized.
That’s what I’ve all been saying for years here; that, you know, this is
— so much of this is an emotional, political stakeholders’ issue and we — and
the study should recognize that for the good and the bad sides and the up and
the down sides, so ...
M. STOTO: I think that’s appropriately handled in the
text on page 4-1, but I think I like David’s idea about putting that in the
title.
D. JOHNSON: I mean, the title — I’m not — by looking at
the title, I’m not — is that saying that it’s — we’ve shown that it’s
associated or is it ...
J. ROBINSON: It’s the ...
D. JOHNSON: ... it’s recognized as Agent
Orange-connected? I’m not sure what that
means?
J. ROBINSON: We can change that to reflect that it’s the
Department of Veterans ...
P. CAMACHO: Affairs.
J. ROBINSON: ... Agent Orange Registry. These are the conditions that as a result of
legislation, they are compensating veterans for.
P. CAMACHO: Yes. I
mean ...
J. ROBINSON: Vietnam veterans.
P. CAMACHO: ... you don’t have to agree or disagree with
the decision that they made to recognize this scientifically; is that this has
been recognized by the Department of Veterans Affairs as a result of
Congressional action and then you’re out of it.
You’re off the hook.
M. STOTO: Sandy?
S. LEFFINGWELL: Wondered whether “presumptively recognized”
was the term of art? Is that what the VA
calls them?
M. STOTO: Yes.
Yes.
P. CAMACHO: Yes.
To my — best of my knowledge, that “presumption” is. In other words, I’m a veteran. I’m saying I think this is because of Agent
Orange. And after so much political
activity, and lobbying on the Hill and hearings, et cetera, et cetera,
the VA came out and said, “Okay. We’re
presuming that’s what the connection is.”
So I get treated or I get a disability based on the VA finally coming
around and saying, “We presume this is a service-connected illness.” But that adjudication came from the
committee. That’s a political process,
not a — not necessarily a medical process at all.
M. STOTO: But it — but it is a term of art, that word.
P. CAMACHO: Yes.
M. STOTO: And it probably — actually it would be better
if that word weren’t in the — in the title.
I think what this really is about is this is the Ranch Hand findings
about the things that are on this list; that really is what this is.
P. CAMACHO: Which is a different story.
M. STOTO: Yeah.
P. CAMACHO: And just recognize it. The — you could have a sentence, “The
presumption” — word “presumptively recognized” is the phrase utilized by
virtually everyone: by the population at
large, the stakeholder population at large to acknowledge that this is a
Department of Veterans Affairs recognition that the veteran is presumed to have
a service-connection illness.
M. STOTO: I wonder if this wouldn’t be better actually
as part of the conclusions chapter? The
conclusions chapter is kind of thin now as it is and then basically, you know,
if you go through these — the chapters one-by-one, and then at the end say
here’s what we found, and by the way, here’s how that relates to the VA list
and, you know, you can say that — like I would start out with some of them — we
just didn’t have a lot of information about things that were on the VA list,
but then where we could look at it, we found so-and-so. Ron?
R. TREWYN: I almost think you need it in both
places. I think expanded in the
conclusions, but it sort of sets context for some of the things that come
later. So I think you need something
early on so it — so it lays the framework that for the discussions later, but
then maybe expanded upon. So it may be
able to cut this down a bit, but then — and move some of it to the conclusions
section. But I think you almost need
this to set the stage for why some of these things were looked at.
M. STOTO: Or maybe it should be in the introduction
then.
P. CAMACHO: Yeah.
You said here the presumption by the Department of Veterans
Affairs. I mean, if you want to put it
in parenthesis this is — this is a presumption based on political action.
M. STOTO: Okay.
P. CAMACHO: I mean, I don’t know how you say that
carefully, but I don’t think you have to.
Basically, this is all — this was the result of political interest group
activity. Am I — am I wrong? I mean, I don’t want to ...
M. STOTO: That’s not — that’s not — it doesn’t
matter. Yeah.
P. CAMACHO: I’m worried about the “presumptively recognized”
and why is that, you know? We’re worried
about ...
M. STOTO: Sandy?
S. LEFFINGWELL: What concerned me that was just that when
someone says “presumptive,” by loose association I think “rebuttable” and we’re
not rebutting that presumption here really.
We don’t have enough data. We’re
not supporting it, but ...
P. CAMACHO: When you say “presumption,” most people or to
me, I — “Oh, it’s presumed that there is a connection.”
S. LEFFINGWELL: Yeah.
D. JOHNSON: I just — what I thought was the concern was
that this title doesn’t clarify. You’re
talking about just those conditions that were identified by the — by the VA or
are you talking — or does this report also support that these are all Agent
Orange-connected? It’s not totally clear
in that title. Do you understand what I
mean?
J. ROBINSON: We’ll make the title descriptive of the
chapter content.
D. JOHNSON: Of what it is, just so that it’s clear what
it is.
J. ROBINSON: Sure will.
Thank you.
M. STOTO: Okay.
D. JOHNSON: I had a comment; this is minor. I don’t know that you — I don’t — this is
minor; I don’t know that it has to be made.
It — but I looked at the chloracne since that was one of the sections
that I looked at and it starts off on page 4-3.
It says, “Chloracne is a skin condition that looks like common forms of
acne seen in teenagers.” But you kind of
leave out the fact that it actually has a typical pattern that sets it apart
from teenagers.
And then at the end it says and it
“usually persists for a maximum of 2 to 3 years.” And I think that’s after exposure has
ceased. In other words, if exposure
continues, it would go longer than that, but after two to three years after
discontinuation of exposure. And those
are minor points; I don’t know if you want those or I don’t know that those are
critical, but ...
J. ROBINSON: We look at all comments.
D. JOHNSON: Okay.
M. STOTO: Yeah.
I think that we should definitely communicate anything like that — those
things to the — to the Air Force and if we need to ...
J. ROBINSON: If you ...
M. STOTO: If it — if it seems like it might be
Committee discussion, we should talk about it now.
D. JOHNSON: Okay.
M. STOTO: How about that as a — as a decision rule?
J. ROBINSON: It’s like the chapters that you reviewed for
the Cycle 6 report.
D. JOHNSON: Right.
J. ROBINSON: You know, if you have something wasn’t stated
very clearly, or we need a comma or something like that, go ahead as you have
in the past and just hand me ...
M. STOTO: Right.
J. ROBINSON: ... those comments.
M. STOTO: But if I have an idea that I think that Ron
may disagree with, you know, I — we should discuss it.
J. ROBINSON: Yes sir, absolutely.
R. TREWYN: But I never disagree.
M. STOTO: Okay.
Were there any other comments on Chapter 4?
R. TREWYN: I want to raise one question, but being
agreeable while I do it. And it actually
— the discussion that went on actually made me think about something that I
realized I didn’t see in here and I went back to the final report to dig the
terminology out. It probably is, in
fact, something that should’ve been in Section 2 or 3. But there is a statement in the final report
under “Study Design” that says, “While Ranch Hand veterans spent most of their
Southeast Asia service in Vietnam, comparison veterans spent on average less
than 30 percent of their Southeast service in Vietnam.”
And I think, it would seem to me
that from a statistical standpoint for an epidemiological study that is a
hugely important factor. That gets back
to this “in country, not in country” of the comparison group that may help
explain some of the cancer findings when they’re sorted differently. And I’m wondering if that aspect from the
final report, “Study Design,” should be somewhere in this one to set the
context?
M. STOTO: It is somewhere in the beginning.
R. TREWYN: Yes.
M. STOTO: But it could be repeated in this section too,
yeah.
S. LEFFINGWELL: In 1.3?
M. STOTO: Yeah.
R. TREWYN: In 1.3, yeah.
M. STOTO: But it may not be — it wouldn’t be — hurt to
say it here too, yeah. Now here’s one of
the things where I have an idea that I’m not sure everyone agrees with. In
Section 4.9, and .10, and .11 and .13 where there are findings for prostate
cancer, respiratory cancer, soft tissue sarcoma, we don’t — this thing does not
report a relative risk in any — in any sense or any kind of significance
findings.
And you know when — basically when a
report says there were two in this category, and three in that, and four in the
other one and so on, and I don’t know what to make of those numbers all by
themselves. And I think I would be
happier to see, you know, relative risk of this is, you know, 1.03 and the
confidence interval is very wide or something like that rather than this.
R. TREWYN: Yeah.
It sort of goes away from, again, going back to our earlier
discussions. But I think if you don’t
have some context, some — to put it in, it is a little difficult to
follow. I mean, I ...
M. STOTO: To give — to give the ...
R. TREWYN: Something along those lines, I think is a
good idea.
M. STOTO: To give the raw numbers here, no one can
really make any sense of these numbers just by reading them. You have to do some kind of calculation and
you couldn’t do the right calculation in your head and — yeah. Okay.
And I guess I would — I would say the same thing about the
diabetes. Now there’s — obviously,
there’s lots of indicators of diabetes and I think I — for here, I would pick
maybe two or three key ones. I don’t
know what they would be, but I would try to choose a couple ones that kind of
made the case as clearly as possible and said that this was supported by other
related findings. Okay.
R. SILLS: Only one minor point I would like to
make. For example, 4.10 and 4.11 where
you talk about respiratory cancers, in terms of a bottom line — bottom line, if
it could be a little more consistency.
For example, under “Respiratory Cancers,” it says, “The evidence of an
association, although not a causal relation, between dioxin exposure and the
occurrence of respiratory cancers was considered “limited/suggestive” by the
IOM Committee.” And then they — then
they talk about it a little more here, but there’s no bottom line.
But in Section 4.11, they do the
same thing and then you end with “This conclusion has remained unchanged in Veterans
and Agent Orange updates.” And maybe
something like that should be added to 4.10 where you kind of conclude, “The
conclusion remains unchanged for all Veterans and Agent Orange updates,”
something like that.
M. STOTO: And there was — there was one, the PCT,
Section 4.8 where the point was made that it actually — the evidence level
decreased over time and that ...
R. SILLS: Yeah.
M. STOTO: ... that’s a — that’s a — that was an
important point to make, I think.
Okay. Other comments on Section
4? How about Section 5? Section 5 is “Reproductive Outcomes” and we
actually assigned somebody to that.
R. SILLS: So I was the primary person on that. I thought it was well written; introduction
was well stated; the conclusions were pretty clear. The only thing that I would add is like Mike
suggested, add a little more references.
For example, on page 5-1, line 19 — or 18 and 19 where you say, “A
series of journal articles were written based on the 1992 report.” I think you should include references there
so that one could cite those easily.
And similar on page 5-4, line 128,
“The analysis for this report generated a series of journal articles on
reproductive outcomes.” We need to add
the references there so one could easily access that. And I thought it was very clear that there
was a lack of association between dioxin and reproductive effects in males and
females based on this write-up.
M. STOTO: Well, there’s actually one thing that’s
missing; is that the results about spina bifida were significant and that’s —
yes, they are. And that’s even noted in
Section 4 and that was — that was one of the basis — that was part of the basis
on which the IOM concluded there was a relationship with birth defects. It was four neural tube defects in the — in
the Ranch Hand group and zero in the — in the control group.
W. GRUBBS: If you look at lines 106 ...
M. STOTO: I’m sorry?
W. GRUBBS: Mike, on line 106 to 110 is the discussion on
spina bifida there.
M. STOTO: Right, that’s why — and my note is that this
is significant and I think that needs to be said. In fact, it is said on page 4-6. Well, maybe the word “significant” isn’t.
M. PAVUK: If I may, if you would look at the actual
paper, since there is zero and three, there was never really analysis conducted
there. So the result was never
statistically significant because there were no spina bifida in comparison
veterans and the analysis in the paper was comparing Ranch Hands to
comparisons.
So in that table in that paper, you
know, there are no statistically significant, you know, there’s no p value in
that table. The numbers are so small
throughout the table and what stands out is that where you expect zero for
Ranch Hands, you have three spina bifida.
So I’m just trying to clarify what is in the actual paper.
M. STOTO: The fact that the test wasn’t done doesn’t
mean that it’s not significant and I believe that we actually looked at those
calculations. And there are ways to deal
with the zeros there and thought that it was a significant finding when we
looked at it. And in fact, that is what
is reflected in — on page 4-6. So I
mean, maybe at a minimum, you could — you could repeat what’s said on 4-6 here
on page 5-3.
I mean, that’s one of — in my mind,
that’s one of the most important findings from the Ranch Hand Study after
diabetes and it’s kind of swallowed up here.
It’s kind of buried here.
Okay. And I mean, I — and I would
also put that in the conclusion. I mean,
that’s not in the — of Section 5. It’s —
that’s missing from the conclusion.
K. FOX: I guess I’ve got to go back to the
“presumptively” word and all. What we
found, it didn’t meet statistical significance, so it didn’t get included. But that’s not to say that the — that
additional information from other sources could make it that way. But our study did not find it that way.
M. STOTO: Yeah.
K. FOX: Because you ...
M. STOTO: That’s a — yeah
P. CAMACHO: Since the test wasn’t done, you cannot say
that there was no statistical significance; say that the test wasn’t done. Then at least you’re saying it just wasn’t
done. If somebody says why, because
according to what I just heard, you felt that the number “n” was too small, and
you couldn’t get around that and just say what it is. That’s there I, you know, because I’m sort —
I’m a sociologist.
I’m sort of here in a way to — I’m
trying to help you by saying I know what the rock throwers are going to
say. And when they see that, that’s
going to — their eyes are going to open, get very wide and you want to — if you
want to — if you say there’s no real reason for them to get wide, they’re just
lay people, they don’t understand, well, you better make it understandable to
them. I’m just suggesting that because
otherwise, people are going to jump on you.
M. STOTO: But this looks like you’re burying a finding
...
P. CAMACHO: Yeah.
M. STOTO: ... and which is an important finding.
P. CAMACHO: And that’s what you’re going to be accused
of. And if it isn’t — it isn’t the case
...
M. STOTO: Yeah.
P. CAMACHO: ... just say so. See, you have to — I would presume a hostile
audience in a sense or one that — because there is so much suspect around the
whole social science of this stuff, not your medical science, but the whole
issue in which this study is always been involved in. So you — prevention here, prevent yourself
from getting attacked. Say, you know,
just — even if you think it’s not worthy of it, prevent yourself from getting attacked. That’s what I would say to do. I mean, as an advisory board person, I feel
like I should tell you these things. I’m
sorry if you don’t like what I say.
K. FOX: No.
Thank you.
R. SILLS: So Mike, as you suggested, maybe, you know,
after line 110, we could add the statement or modify the statement so it’s
really clear. From 4.6, line 188, we
could say something that, “The result, along with two other epidemiological
studies, led the IOM to conclude that there was limited/suggestive evidence of
an association between exposure to herbicides and spina bifida in the offspring
of exposed individuals, as reported in the 1996 Veterans and Agent Orange
update. The conclusions remain the same
in subsequent Veterans and Agent Orange updates,” something like that
to, you know, fall in line 110 of 5.3 — 5-3.
M. STOTO: Yeah.
I think that would make sense to do that.
P. CAMACHO: But tell them that you didn’t do the
study. But the main point here that you
didn’t do any — really any testing on the four and zero. Isn’t that ...
M. STOTO: No. I
don’t think that’s the main point. I
think the main point is that if you had done the test, that would’ve
contributed to this evidence base that said there was — there was a
relationship there.
R. SILLS: Yeah.
M. STOTO: I understand why they didn’t do that test
because the numbers were small and they had to kind of charge it through in a
kind of standard way. But, you know,
there are ways to say whether that’s significant and that’s been done. And I think that — I think that the way that
Robert said it was a — was a good way.
M. PAVUK: I think I would just want to clarify; what I
wanted to say was not that the test was not done. What I was referring to that the table as was
presented in the paper that the sentence refer to, that that table didn’t
include those numbers. That doesn’t mean
that no testing was done. That’s not
what I was trying to say.
M. STOTO: Okay.
Okay. And again, I would — I
would just repeat the suggestion about including something about that in the
conclusion of Section 5 too. Other
comments on 5? Okay. Section 6 is “Mortality.” Paul was the reviewer of that.
P. CAMACHO: And I had to look at it. And it’s, again, to me, it’s — this is my — I
guess my theme song and I have said this at other meetings that we were at. People are going to look at this. Really, as I went through it, well, the first
time it really shows up there is on page 6-3 at the bottom when you talk about
“an excess of deaths from the digestive and circulatory in the ground crew on
the higher dioxin level,” but no association in the living. And then you talk about how it gets — but it
shows up again: “The increase in deaths
in Ranch Hand and from circulatory enlisted did.” You know, it increased — 106, 107.
Then you talked about “found no
difference in mean levels.” Already, a reader
is going to say, “Well, you found a difference; now you don’t find a
difference.” Remember who’s reading this
thing. I don’t care about the — I know
everybody says it’s for the scientific audience, but I’m telling you that a lot
of people without any scientific knowledge are going to read this and they’re
going to explode on you. And you’re
going to have to — it’s this — honestly, I was talking to Dr. Trewyn about
this.
Years ago — I’m going to digress
here — years ago, a guy named Phil Goulding wrote a book called Confirm or
Deny. He was an Undersecretary of
State for the Far East or for Southeast Asian Affairs and Public
Relations. And it was all around the
Harrison Salisbury series issue and bombing in Hanoi and Haiphong Harbor. And Lyndon Johnson — the point was that
Lyndon Johnson had been out there with his little catechism school pointer and
pointing, talking about surgical bombing strikes, and no civilians were ever
going to be impacted.
Well, a phantom jet at 600 miles an
hour throwing out 500-pound bombs — be brief, continue, all right — but he set
up in the public’s head that this was not going to happen; don’t — nothing to
worry about. Along comes Harrison
Salisbury, the only reporter in there.
But he comes out with 22 reports in the New York Times saying
that the United States and the Air Force are lying, and that they’re dropping
bombs, and they’re killing civilians, and they’re blowing up hospitals, et
cetera, et cetera, et cetera.
Now later, the government found out
through Phil Goulding and other people that he was the only reporter there and
he was the only — he never spoke Vietnamese.
He didn’t really know where he was and he was essentially feeding back
press releases from the North Vietnamese Army.
But too late; that’s the whole point of Phil Goulding’s thing. They set themselves up to be shot and they
got shot. And then they complained,
“This is unfair.” But that’s what’s
happening here.
I’m trying to say by analogy that’s
what’s happening here. If I go down the
“Mortality Update,” no difference, no increase.
But increase in digestive and deaths from circulatory among the ground
crew, did you — no overall; yes for the ground crew. What was with the — what’s the story with the
ground crew? Did anyone follow the ground
crew? What about at the higher levels
for the ground crew? Was there a, you
know, a — was there a better body count of how many guys were in this thing on
the ground crew?
And when it said later down on the
bottom, “no increase in the overall,” “an increase in deaths was no longer
seen,” first thing that popped into my head and I know is going to pop into
people’s heads, “Oh yeah, of course not.
They already died off.” That’s
what people are going to say. Do you
understand what I’m getting at? I’m not
disputing the science here. It isn’t a
matter of science. It’s what people are
going to look at this thing, the way it’s — so you have to have something in
here about the ground crew, and what happened to that and why did the numbers
at the end — why it wasn’t no longer seen?
If it faded out, you know, give an
explanation for why this digestive piece faded out from the ground crew. Check all levels on the other there, the —
around 137, “increase in deaths from circulatory disease in the enlisted ground
crew that was reported in the ‘91 was still present, although no new
circulatory degrees were reported.”
Check the levels; talk about what — how this is — seems inconsistent.
Somebody reading this is going to
say, “Well, what’s the story with the ground crew? Did these people follow up the ground
crew?” And if you don’t have an answer
for that, they’re going to say you didn’t want to follow up on the ground crew. That’s the first thing that they’re going to
say to you. I mean, I ...
M. STOTO: Maybe a way to address it is that there’s
really no conclusion to this chapter.
This chapter — this chapter sort of goes through ...
P. CAMACHO: Yeah.
I think you’re making a good — the point I kind of wanted to get
to. Overall, what about the ground crew? In the end, the diseases and five categories
and — but in Ranch Hands was the — not statistically greater. Well, wait a minute. The disease washes out in all Ranch
Hands. You can point that out, but you
need a statement about the ground crew and something about the circulatory and
digestive deaths.
You — I — because somebody’s going
to say, “Well, what’s the story? Didn’t
you look at this?” I’m not trying to be
a — I’m not a medical scientist; I’m a social scientist, in a sense, political
scientist. And what I’m going to tell
you is taking a look at this and that’s what they’re going to — first thing
they’re going to say. If anyone — any —
if I showed this to any veteran out on the street who followed — or any member
from the American Legion, VFW, et cetera, who’s following this and is
trying to, you know, always trying to get to the Hill on this, just this part,
“Well, what about the ground crew?”
M. STOTO: I’ve got a more technical comment on
this. Circulatory system diseases talked
about increased and I think that probably means that it’s higher; that the
relative risk is greater than one compared to whatever the appropriate
comparison group is. But I got that — I
couldn’t sort of rule out the sense that you didn’t mean that the relative risk
went up over time. Increase suggests
time and I think that might be solved by actually using the relative risk in a
confidence interval.
That’s — you do give one relative
risk and a confidence interval on page — on line 158 and line 159, but not for
the one that seems important for the overall mortality rather than for the
circulatory system. So I think that a
more consistent use of, you know, reporting things in terms of relative risks
and confidence intervals would help.
P. CAMACHO: Yeah, and again, yes, do that. And by all means please do — I want to say
this gracefully — do yourself a favor and put something in this that explains
or shows how this ground crew phenomena is not a concern. Because if it is a concern, people are going
to say, “Well, what did you do then?”
M. STOTO: Okay.
Thank you, Paul.
K. OSEI: Mike, I think the point we’re making,
throughout the whole, you know, document, we have a lot of numbers. I mean, it’s very difficult to follow the
exact numbers: 188 people died versus
139. If you can translate that into
other relative risk or percent, probably that will help, you know, rather than
trying to recollect the numbers. The
numbers are very difficult and I saw that more in the diabetes and the other
sections. So just a — just a generic
comment, but you know, how to really document the risk: low versus high and relative risk, yeah.
M. STOTO: I, you know, I should — I probably should’ve
said this at the beginning. I think that
writing a report like this is really hard, and I — and I — and I really think
you guys should get a lot of credit for having done such a good job, and I’m —
and I’m sorry I didn’t say that at the outset.
So hopefully this is — these comments are taken constructively. Okay.
Section 7 is cardiovascular and that is Kwame. Did you have a chance to look at that — at
those? No, Dr. Osei?
RECORDER: Turn your mike on.
K. OSEI: You gave me number 9.
M. STOTO: Oh, I thought I asked you for both. Okay.
Did anybody look at 7, cardiovascular?
Ron?
R. TREWYN: There’s one aspect that starts in — appears
to start in Chapter 7 that carries through.
I think for most other chapters that I did from doing 14, went back to
see where this began. And I think it was
in Chapter 7 where Section 7.1.1, “Chapter Structure,” there are three
paragraphs this chapter is written: the
narrative, the results discussed and the ‘87 follow-up.
Those three paragraphs, any time
there is a “Chapter Structure” section from there on, that’s just repeated
throughout. I would take that back
somewhere into one of the early, you know, into the “Study Design” and plug
that in or somehow; that restating those three paragraphs chapter after
chapter, I think makes it more frustrating or whatever to read. I don’t — it doesn’t help — necessarily help
clarify if somebody’s reading multiple chapters, so ...
M. STOTO: And maybe they could be — say “please see
so-and-so” for — because I know in every chapter for that ...
K. OSEI: Mike, the only thing I picked up was the —
that chapter was supposed to be cardiovascular.
But when I look at 7.11, you have kidney, urethra, bladder, x-ray
abnormalities, so it doesn’t fit. You
know, we are looking at cardiovascular.
I don’t know how it even got there.
M. STOTO: That’s a good question. That kind of has changed over the years,
right? That probably is what that
reflects.
K. OSEI: Yeah.
M. STOTO: But maybe the — maybe the title can be
expanded to ...
K. OSEI: Yeah, if we ...
W. GRUBBS: Mike, line 57.
M. STOTO: Line 57.
K. OSEI: 57.
M. STOTO: Bill calls our attention to line 57.
K. OSEI: Okay.
J. ROBINSON: That was a special ...
K. OSEI: 57.
J. ROBINSON: That’s the line that starts, “At the 1992
follow-up examination, a KUB x-ray assessment was accomplished.” That’s on 7-2.
K. OSEI: 7-2, but then we need to think about it, you
know, “Cardiovascular Assessment,” and I mean, then you have — you — genital,
inclusion cardiovascular assessment and that’s — it’s page 7-11, 238, that’s to
240, unless I’m missing something because you’re talking ...
M. STOTO: I guess — is the point is that this KUB and
any ...
K. OSEI: It’s not a cardiovascular disease.
M. STOTO: ... and any other — so this is stuck here
because it has no other home?
K. FOX: Right.
J. ROBINSON: Because it was only used to detect hardening
of the arteries.
K. FOX: Detect hardening of the arteries, that’s what
it was used for. It didn’t have anything
to ...
M. STOTO: Oh, I see.
Okay.
K. FOX: That’s the whole — so we had to explain ...
M. STOTO: Yeah.
K. FOX: ... why are you — I have the same
question. Why is KUB in this? And then we looked back at what they were
using the KUB for and it was for the arteries, so that’s the reason why it’s
there.
K. OSEI: Okay.
Then, you know, I think we may have to rephrase that.
K. FOX: But we’re looking at the hardening of the
arteries ...
K. OSEI: That’s what I’m saying.
K. FOX: ... for the KUB, which is part of the
circulatory system.
K. OSEI: Yeah.
M. STOTO: Maybe ...
K. OSEI: You may have to explain that a little bit or
retitle “classification” of whatever deaths that you’re looking at and not get
into the bladder and all that because it’s out of place.
K. FOX: But that’s what a K — we’re just saying that
KUB stands for what it stands for. And
that x-ray that was done, what we were looking at for the circulatory system
was the hardening of the arteries that you can see on a KUB, nothing else. That’s just what they were using it for.
R. TREWYN: Couldn’t you have then just retitle that
though as a — as that other analyses for hardening of the arteries and then put
in your statement that this was a ...
J. ROBINSON: Sure.
R. TREWYN: Okay.
So that way it ...
K. FOX: Okay.
R. TREWYN: You don’t have the title looking way out of
place.
K. FOX: Okay.
R. TREWYN: Okay.
K. FOX: We can do — we can change a title.
K. OSEI: Yeah.
The title is off, yeah.
R. TREWYN: And then just a little — just a little bit of
explanation ...
K. FOX: Explanation.
R. TREWYN: ... in there as to why it’s done.
K. FOX: Okay.
R. TREWYN: Then it’s very clear.
K. FOX: Okay.
M. STOTO: Okay.
Any other comments on 7? Seven is
the first place where the — this kind of standard table shows up too. On page 7-3, where you have basically all the
variables that you ever looked at, and then which the examination it was looked
at in with a — with an X, and then the ones that were significant or something
are bolded. And does that mean that if
it were done six times that it was significant once, or all six, or enough to
make someone think about it more or ...
K. FOX: It had it at least once.
M. STOTO: At least once.
R. TREWYN: Could the X, where it was significant, be
bolded? Would that help? I mean, so at least you know if you’ve got
one that goes every analysis across there for whatever ...
M. STOTO: And it would be a little bit more information
there, yeah.
R. TREWYN: ... myocardial infarction, that if that was —
just the X was bolded wherever it was significant, that at least would then give
people an idea where to go back to.
M. STOTO: Yeah, or you might have like a, you know ...
K. OSEI: Asterisk or something.
P. CAMACHO: Or a new index.
M. STOTO: You might have a dot if it was tested and a —
and a plus if it were positive, or significantly positive or something like
that then. David?
D. JOHNSON: This was not — this was not my chapter to
review, but I just — when I look at the conclusion, it’s — I just wonder if I
can ask somebody to clarify it. It says,
“After 25 years of observation, the prevalence of cardiovascular disease did
not appear to be associated with dioxin exposure. Abnormal pulses,” et cetera, et
cetera. “The increase in the number
of deaths caused by diseases of the circulatory system for Ranch Hand
non-flying enlisted personnel, however, does point to the possibility of an
association with dioxin.” And I just
don’t — I — what does that mean?
R. TREWYN: It did, but it didn’t. No, it didn’t, but it did.
D. JOHNSON: I mean, was there a statistical association? Was there not one? What does it mean that it “points to the
possibility of an association?” I — it’s
not a very clear conclusion. Does
anybody else know what that mean?
M. STOTO: That’s a good question. I — the other thing I notice is that there’s lots
of bold things in this list of variables too for ...
P. CAMACHO: I don’t want to jump the gun, but when you —
you’re going to have to have some explanation of that because that came up in a
— in a later chapter I had to review.
You have — if I look back at the table, I see bold. Immediately, I’m saying — and right above it
on line 98 in the chapter because they showed a statistically significant
result adverse to Ranch Hands.
Then I look at the table; I see all
this. I see all bold, two non-bold. Immediately, if I’m a — if I’m a veteran or
I’m a staff person on the Veterans Affairs Committee, I’m going to tell you
what I’m going to do. I’m going to say,
“holy expletive.” That’s what I’m going
to say, right? I look at — just think
about it; you said above it “statistically significant results adverse to Ranch
Hands.” What the heck? That’s all I’m going to say.
These guys aren’t going to be going
— I’m telling you, they’re going to look at that and they’re going to — all
these things are significant and then they’re going to go to that conclusion,
but they’re saying things aren’t significant.
They’re going to go back to the table and they’re going to go, “But you
said you bolded these because they were.”
They’re going to go back to the conclusion and they’re going to go back
and forth. I’m sorry if I’m not being
helpful. I’m not trying to really be
smart — “smarty pants” here. I’m just
telling you that that’s the kind of thing that ...
M. STOTO: Yeah.
P. CAMACHO: It’s ...
M. STOTO: Is there a diabetes — potentially a diabetes
connection here?
K. OSEI: Possibly, you know. If we get to the diabetes, we’ll maybe talk
about that. So there’s the possibility
of other things: hypertension, diabetes
as a confounding variable. But I think this — what the argument is on this —
the statement itself, you know, where they seem to go both ways.
And I think we need to clarify and
if we show a significant increase, say so.
It doesn’t have to be dioxin-related, you know. They had to be in the war, you know. The process of going to war and being for 25
years probably could do that, so you don’t have to necessarily tie dioxin to
this. If it’s not related, it’s not
related, you know. Yeah.
P. CAMACHO: Let me — let me put it another way to show you
how serious I am about this Phil Goulding effect. If I was on the committee — somebody’s got
theirs on or should shut theirs off.
L. SCHECHTMAN: Can everybody shut their microphones on who’s
not speaking?
P. CAMACHO: Off.
L. SCHECHTMAN: Off.
P. CAMACHO: Off.
L. SCHECHTMAN: Not on.
P. CAMACHO: They’re not on. All right.
If I — if I’m on the committee — if I’m a staff person on that
committee, I’m going to whisper into my member’s ear to say something and it’s
going to be something like this. “Are
these tests, carotid” — excuse me; I can’t pronounce this — “diastolic, are
these all health tests? Can you give me
a simple answer?” I assume you’re going
to say yes.
“They all showed significance
according to” — yes. “So there’s a
connection?” “Well, we don’t want to say
that.” “Well, are they significant or
not? If they’re significant, tell me why
there is not a connection that you say doesn’t exist in the conclusion.” Do you — do you understand what I’m getting
at?
K. FOX: I do.
And I think what would help is if we bold the X and you see that it’s —
only one thing is one — significant for one test and not any other time that
you’re looking at it. Would that
help? Because that’s a lot of —
unfortunately, that’s a lot of what’s going on here is when you look at the —
when you look at the — we’re only talking most of the time, except for diabetes
where you then can continue to show ‘92, ‘97, 2002 were it. But a lot of these are just one-time examinations. It showed it was significant there, but
didn’t continue through and it was one time.
P. CAMACHO: Say that.
Say that.
K. FOX: Okay.
P. CAMACHO: Say that.
M. STOTO: I think that would help a lot.
K. FOX: Okay.
M. STOTO: And I think that to support that what you
need is in the chapter, what it is earlier where you — I was suggesting you
talk about statistically significance, you have a discussion about 5 percent
alpha levels means that when you do 1,000 tests like you’ve done here ...
K. FOX: Okay.
M. STOTO: ... you expect 5 percent of them to be
positive even when there’s nothing going on.
That’s an important point to make.
K. FOX: Okay.
M. STOTO: Yeah.
D. JOHNSON: And I just want to agree if you — to say that
it was significant at one of the — one of the seven findings, but not in any of
the others and so there was a lack of consistency to support an association,
that is — it means a whole more than not saying it and ...
K. FOX: Okay.
We’ll — and that’s really — that’s where we came — that’s what we were
trying to say, but we’ll put it in words.
M. STOTO: Okay.
R. TREWYN: One other thing though in the conclusion
section — and I get back to the point that was made earlier — don’t necessarily
tie everything to a dioxin effect. And
if you have an increase in the number of deaths caused by diseases of the
circulatory system for Ranch Hand non-flying enlisted personnel, nobody is
going to look at that as being insignificant.
These people died.
Okay, and so whether or not it’s
correlated to something else, if the Ranch Hand non-flying enlisted personnel,
if there were more of those folks dying than the other of cardiovascular or
whatever, I mean, that’s something — you make that point. Okay.
If you aren’t certain of the cause, but I think it’s critical so
you don’t — you get to this effect; that
you are pointing this out very clearly that was a finding of our study; that in
this group and whether you’ve nailed the cause or not, at least you’ve reported
that there is a, you know, an increase in deaths and that’s a concern.
D. JOHNSON: If I can follow up on that, see, I didn’t
know what this means when it says, “however, it does” — there’s an “increase in
the number of deaths.” So are you saying
there that there was — there was a — there’s ...
K. FOX: Where are you?
D. JOHNSON: In the conclusion again — there was some
excessive deaths, however, it did not reach the level of significance? Is that what is being — is meant to be said
there or is it one of the situations where it just occurred one of the seven examinations? It’s not really clear.
K. FOX: Okay.
D. JOHNSON: It’d be easier — it’d be better to state it
just as it is.
K. OSEI: The other point, Mike, actually just to
follow up on that, they have one-time abnormality, myocardial infarction. The question that comes up is what will the
co-morbidity and mortality associated with that event, the MI? When they had it, did it make it or did not
make it because that may change your conclusion that — and so that maybe
explains some of the numbers, the confusion that we have here. And I think it’s something you can look at,
you know, whether they made it or not.
M. STOTO: I want to add another point. When you think about cardiovascular disease,
you realize it’s really a lot of risk factors, known risk factors for
cardiovascular disease other than dioxin or service in Vietnam. And in fact, the statistical models that are
used were primarily adjusted for those things.
And I don’t think — I’m not sure if that point is made at all, but it
certainly isn’t made prominently. I
think this is — that’s an important point to make; is that you’re really
talking about results, I think, that are adjusted for known risk factors to the
extent possible.
P. CAMACHO: So that you can refer to potentially
confounding variables that are out there and make that, you know, make that as
a part of your claim. And for me, it’s
like you’ve got to make it as part of your defense because when you point these
things out, this is — this is through a number of chapters. I know it’s — I’m going to say much the same
things we’ve already said here about Chapter 16.
M. STOTO: Can we go on to Chapter 8 on
dermatology? David? Oh, Sandy, did you have something else on
this?
S. LEFFINGWELL: One more thought on this. If there’s a need to prepare this for a
non-technical audience as well, I wonder if a brief discussion of Phil’s
postulate somewhere in the first part would help explain why consistency is
important?
M. STOTO: Yes.
Okay. David, on Chapter 8,
“Dermatology.”
D. JOHNSON: I just noted on line 7, again, that chloracne
may persist for almost — for most — for at most two to three years after
discontinuation of exposure. I thought
it was written — I thought they did a pretty good job here and I really didn’t
have any major changes with this.
M. STOTO: Okay.
Other comments on Chapter 8?
Great. Thank you. Chapter 9.
Kwame?
K. OSEI: Yeah.
Chapter 9 was very well done.
Actually, the only suggestion I want to make would be on the diabetes
part, which I — so far, seem to be the highlight of the day. If you could put this in a — even a bar graph
to show the, you know, incremental prevalence from ‘82, ‘80, you know, ‘85, it
would actually, you know, display precisely what you are trying to write in
words, just add one figure to it.
I had a couple of questions about
fasting urine glucose; 2 — 9.2.6 and 9.2.7, and I don’t know what that means
actually. At the baseline, it seems that
dioxin — people with higher dioxin levels initially also had glucosuria. They have high prevalence of ...
M. STOTO: What lines are you referring to?
K. OSEI: 9.2.6, line 215, 216, 217, 218. Is that true that when they came in, if you
had higher dioxin at initial period, you had a higher chance of having
glucosuria?. Is that true even they
didn’t have diabetes or they had diabetes then?
Yeah, and the same thing apply to 9.2.7.
Yeah, because if they did — didn’t have diabetes, it means the dioxin
could be, you know, actually nephrotoxic; that they have glucosuria. It’s a poison to the tubules, the
reabsorption mechanism of the kidney.
And it’s very interesting because
that also relate to some of the high rate of diabetes as you move forward, so
if you could clarify that. Yeah, and the
only thing I would add again, we look at percentages of people who had
developed diabetes rather than just the numbers. If we could translate that to the risk,
relative risk, and percent of people over time who developed diabetes that will
also help. Yeah.
And in conclusion, I think under the
diabetes, I would suggest that we link that to the cardiovascular and that may
help, you know, that the CVD increase may be related to other core associated
conditions, such as diabetes. So you
can, you know, you can put that in; that probably will help you, yeah, and sort
of tie into dioxin.
K. FOX: Cardiovascular was controlled for diabetes.
M. STOTO: Turn your microphone on.
K. OSEI: Oh, it’s controlled for diabetes?
K. FOX: Yes.
Cardiovascular was controlled for diabetes.
K. OSEI: All right.
Okay.
M. STOTO: Okay.
So well, that’s a point that needs to be made in the cardiovascular
chapter.
K. OSEI: Yeah.
Yeah.
K. FOX: It — the extensive control that we did for
confounding factors needs to be pointed out.
K. OSEI: Right.
M. STOTO: Over and over again, you know, it’s
relevant. I had a — on line 489 and 90
in the conclusions there, it talks about they “showed a consistent and
potentially meaningful adverse relation.”
I don’t — I don’t think there’s any question about whether it’s
potentially meaningful. I would just say
“consistent adverse relationship.”
K. OSEI: And to kind of — the last conclusion, I
think, 499, “Sporadic associations between dioxin levels and thyroid or gonadal
hormone abnormalities appeared unlikely to be clinically important,” I don’t
know what you meant by that.
K. FOX: Then when you look at FSH, and LH and that
kind of stuff, it was — it was maybe one year and then it skipped a couple of
years. Maybe in another year, it’s
again, it wasn’t — the diabetes you can see it:
‘92, ‘97 ...
K. OSEI: Exactly.
K. FOX: ... and all, but you can’t — you don’t see
it.
K. OSEI: Yeah.
I would — I would not be — I would take it out.
K. FOX: Okay.
K. OSEI: Yeah.
M. STOTO: Of the conclusions?
K. OSEI: The last sentence.
K. FOX: Okay.
K. OSEI: It’s not — the conclusion is good and you’re
going to modify it a little bit, but the last sentence is ...
K. FOX: Just take it out?
K. OSEI: Yeah.
Yeah.
M. STOTO: Okay.
Other comments on ...
K. OSEI: And the only other thing I want to say, you
know, you’ve done a — the team has done a phenomenal job. Again, I agree with you, Mike, but when you
try to explain everything and I think that’s where you’re getting into trouble. You cannot explain everything and this is a
report.
It’s a report of, you know,
significant positives, significant negatives.
And I think that’s what you should be — not trying to explain every
deviation, every fluctuation because it’s just a biology, so you can’t do all
that. And I think if you can streamline
what you want to say and, you know, so sometimes the strong, you know, weak;
that’s it.
M. STOTO: Yeah.
This is an important principle, I think, really — that really goes
beyond this one chapter.
K. OSEI: Yeah.
M. STOTO: And sometimes I think that you set yourself
up for a harder job than you needed to by having a rule that says we’re going
to discuss anything where there’s — that’s been significant even once.
K. OSEI: Yeah.
M. STOTO: Because most of those things turn out not to
be very meaningful and you kind of lose the real meaningful things in
there. And so I guess I would think
about moving in the direction where you say we looked at this, that and the
other thing and we got some occasional positive things, but they looked — but
it was only occasional and we’re really going to focus our attention on
diabetes and a couple of other things.
That’s a — okay.
K. FOX: Well, we don’t want to be also complained
that we didn’t address everything either.
P. CAMACHO: You will be.
You will be.
K. FOX: So I’m damned if I do and damned if I don’t.
P. CAMACHO: Yes.
M. STOTO: Well ...
K. FOX: Sorry.
M. STOTO: ... what you have to — but of course ...
K. OSEI: Give them the source, yeah.
M. STOTO: Those ...
K. OSEI: You can refer them to the source, you know.
M. STOTO: Yeah.
K. OSEI: But in the report — yeah.
M. STOTO: Everything — all these things have been
published before. This is only a summary
of the things that have been published before and the idea is to make a summary
that focuses on the things that we think are meaningful and reports that other
things were looked at.
K. OSEI: Yeah.
P. CAMACHO: Or you could divide it in — divide that, sort
of talk about the things that showed up significance. Everybody’s got their “back to the mike
disease” again; you should shut those off if you’re not talking because
otherwise, it’s ringing. But it — the
point is if you put — if you put in one side, okay, these were the significant
things, but we want to be able to say that we covered everything, but they
weren’t consistent and the real focus is on — so you have the significant, but
lack of a better word “trivial” here.
And then a section, significant and not so — not trivial at all here.
Then you might’ve covered your — but
I feel like a referee in a boxing match and I feel like telling the Air Force,
“Protect yourself at all times. Don’t
drop your guard down.” That’s really —
that’s what I’m going to come up to when I get my shot at this and throughout
this thing. And — but I — and also I
feel like I’m a little — I’ve been saying this for about several — couple of
years now, you know, with this thing.
But no matter what happens, no
matter what you think, people are going to take this thing and they’re going to
just go through it like Sherman through Georgia with whatever knowledge base
they have. And it’s probably not going
to be a very big knowledge base, so you have to protect yourself. The Air Force has to protect itself at all
time. Am I right, Dr. Stoto, on this
thing?
M. STOTO: I don’t think anybody’s disagreeing with you.
K. OSEI: Mike, also the — probably I don’t know
whether you can do it or not. There has
to be a disclaimer in this report; that this report is from 1982 forward and
had no bearing because you did not study them prior to ‘82 so that there may be
other events that’ll come before ‘82 that could have, you know, impacted on
some of the results that you’re looking at.
And get that out of the way so nobody comes to you and say, “What
happened to ‘81 and ‘80, those who died?”
So they don’t use this document to support that finding, yeah, and it
needs that disclaimer in here. I don’t
know whether it’s legal or not, yeah.
M. STOTO: Okay.
David told me he’d like to go back to one of the earlier chapters.
D. JOHNSON: Could I ask ...
K. OSEI: Yeah.
D. JOHNSON: Could I ask a question about the conclusion
on the dermatology? Eight-four, the last
line it says, “The interpretation of the increased frequency of reported acne
after service in Southeast Asia in Ranch Hand enlisted ground crew was
observed, but is of uncertain meeting because secondary lesions that were
observed” — meaning scars, et cetera, correct? — “revealed no
association with herbicide or dioxin exposure.”
What does that — you mean the distribution was not ...
K. FOX: That people that had secondary lesions did
not — were not — it wasn’t associated with Ranch Hands or with the dioxin
level.
J. ROBINSON: Here in background or both.
K. FOX: Yeah.
D. JOHNSON: So you’re saying that those that had
secondary lesions were not — they were not in the categories of exposure to
dioxin?
K. FOX: That is correct.
D. JOHNSON: Okay.
Okay. All right, thanks. So, okay.
M. STOTO: Okay.
Now we’ll jump ahead to Chapter 10.
Dr. Hassoun? Oh, it’s time for
public comment. It’s 11:15 now and this
is the time when we announced there would be a public — opportunity for public
comment. So I need to ask whether
there’s someone would like to comment?
Okay. Thank you. Now, please go ahead.
E. HASSOUN: Yeah.
The gastrointestinal is a well written chapter. I have a few comments or questions. If you look at the chart, you said that
“variables appearing in bold type are discussed.” The GG or the gamma glutamyltransferase has
been discussed, but I couldn’t find it on the chart. At the same time, the ...
K. OSEI: It’s in there.
E. HASSOUN: Oh, 10- ...
K. OSEI: Yes, it’s in there.
E. HASSOUN: ... 3, the one that I have — I mean, that I
received, it seems like, yeah, it’s different from the one that we received in
the electronic form. That’s the one that
I received. It’s not there.
J. ROBINSON: GGT?
E. HASSOUN: GGT.
K. OSEI: GGT.
J. ROBINSON: I’m looking at the one you ...
E. HASSOUN: Oh.
J. ROBINSON: ... received and it’s right under “direct
bilirubin.”
E. HASSOUN: Okay.
K. OSEI: Yeah.
E. HASSOUN: Okay.
I’m sorry. Yeah. Then for “prior hepatitis B,” you discussed
that and it’s not in bold on the chart.
“Prothrombin time” should be also bold because it’s been discussed. And my other question would be about — would
be the conclusion. Although the enzymes,
there was not — the enzymes were significantly, or have been significantly changed,
or ALT, AST, GGT.
Let me see which page is that;
conclusion, liver enzymes, yeah, 10-11.
“Analysis of” — lines 363, 364 — “Analysis of laboratory data indicated
that dioxin was associated with hepatic enzymes such as AST, ALT and GGT, and
with lipid” so-and-so. “Although hepatic
enzymes showed” no — “an association with dioxin, there was no evidence of an
increase in overt liver disease.”
But if we look at the chart to other
liver disorders, these are significant.
The — what — first of all, I mean, what these disorders include? The chart in 10-3, there are other liver disorders
and there is a discussion about other liver disorders, but I didn’t know what
these disorders are.
K. FOX: So we need a description of what we’re
talking about?
E. HASSOUN: Yes.
K. FOX: Okay.
E. HASSOUN: And if there is — if there are some disorders,
there might be an association with the enzymes.
I mean, you know what I mean? In
the conclusion, there is no association.
“There was no evidence of an increase in” the overt — “in overt liver
disease.” But if you define these
disorders, there might be an association with the enzymes and the disease.
K. FOX: Okay.
We’ll add those.
E. HASSOUN: Okay.
M. STOTO: One thing that strikes me just now looking at
these tables is that they’re listed in alphabetical order, which I guess — I
guess that makes sense for people who are trying to look things up.
K. FOX: We had arguments. You can dice and slice these tables any which
way, and how we did it, and eventually we just decided we weren’t going to win
any way so we went alphabetical.
M. STOTO: I withdraw ...
K. FOX: But I agree with you.
M. STOTO: I withdraw that comment.
K. FOX: We — it had some lengthy discussions on how
we were going to order this and it just decided that it was easier in the table
just to go alphabetical. Then we tried
to discuss areas that were similar in the chapter.
M. STOTO: Now shouldn’t “alpha” be with the “AL’s” or —
okay. Dr. Hassoun was that ...
E. HASSOUN: That’s all.
M. STOTO: Okay.
Thank you.
E. HASSOUN: That’s all that I had for this chapter.
M. STOTO: Let’s turn now to, let’s see, “General
Health.” Dr. Johnson? That’s Chapter 11.
D. JOHNSON: I’ll have to say that I reviewed this prior,
but on this particular document, I haven’t gone over that in detail. Can I — can I take a quick look at it here,
the conclusion? I did skim this, I
believe, sorry.
M. STOTO: Let me — I’ll ask a question here about the
body mass index in this one. I mean,
obviously that’s related to dioxin, but that’s almost surely because dioxin
depends on body mass index rather than the other way around.
D. JOHNSON: Right.
M. STOTO: Right.
D. JOHNSON: I believe that I recall that to be the only
finding, but let — can — do you mind if we come back to this one and give me a
chance to ...
M. STOTO: Okay.
D. JOHNSON: Can I briefly ...
M. STOTO: Okay.
That’s fine. So Chapter 12, Dr.
Hassoun, “Hematology.”
E. HASSOUN: Let me see.
Again, it’s a well written chapter except for the minor correction for
absolute neutrophil. Neutrophils should
be in bold and absolute, they’re — both of them: the bands and the segs in the chart. But if you — if you — if we come to the
discussion of that, I mean, you talk about absolute neutrophils. You didn’t talk about the segs and
bands. Can you have — I mean, it’s
either that you have both of them as one absolute neutrophils in the chart or
you discuss them separately. That’s all
what I have with regard to this chapter.
M. STOTO: Okay.
Other comments on Chapter 12?
David, are you ...
D. JOHNSON: For 11?
M. STOTO: Are you ready to do 11 now or ...
D. JOHNSON: No.
No, let me come back to this; just give me a few more minutes.
M. STOTO: Okay.
You had your — you had your hand up.
So let’s move to Chapter 13, Dr. Leffingwell, “Immunology.”
S. LEFFINGWELL: I didn’t have any very profound comments on —
I didn’t have any very profound comments on that, which makes me wonder if I
was just numb when I was reading it. On
308 — line 308 and 309, the phrasing of that confused me a bit. I’m not quite sure what it’s saying. I suspect there were no consistent findings
to support the presence of an autoimmune disorder. The number of those tests don’t have anything
to do with ANA.
M. STOTO: Okay.
Other comments from anyone else?
Moving right along, we then go to Chapter 14, “Neoplasia.” Ron?
R. TREWYN: Okay.
I just have some comments on the first two pages and then toward the
end. A few of these are essentially
editorial, but I think it’s just quicker to just get through them now rather
than send them. There’s some, in my
view, some strange use of terminology in here and so I’ve tried to — tried to
work on that. In the line 3, “Many types
of cancer are thought to be related to,” I’ll give you three options other than
“related to:” “caused by,” “induced by”
or “initiated and/or promoted by.” Pick;
“related to” doesn’t tell me, you know, that studies have shown that they’ve
been — they cause cancer or whatever.
So the next line, take out “exposure
to” and then, “Although herbicides have been determined to be carcinogenic in
animal studies,” I think that will read much better. In the next paragraph ...
M. STOTO: It’s “exposure.” It’s singular, so it should be “has.”
R. TREWYN: You’re taking “exposure to” out.
S. LEFFINGWELL: “Although herbicides have been determined
...”
R. TREWYN: “Although herbicides have been ...”
M. STOTO: Oh, I see.
Okay.
R. TREWYN: Okay.
Yes, that’s ...
M. STOTO: Okay.
R. TREWYN: That was the point. It isn’t the exposure that’s
carcinogenic. It’s the herbicides that
are carcinogenic, so that was — that was my point.
M. STOTO: Okay.
R. TREWYN: In the next paragraph, the first sentence,
“Many studies,” that makes it sounds like people have used humans as in the —
as an experimental animal in these studies the way that’s written. I think that first sentence in that paragraph
could be taken out and modified to then just start with, “While the cumulative
epidemiological data from human studies” and go on from there. I think that makes the point a little better.
Dropping down to line 26, the use of
“behavior” in a few places here, I don’t think it’s behavior that’s being
described. So “In the Air Force Health
Study examination reports, skin neoplasms were analyzed by diagnosis as malignant
or benign. In particular” — then the
rest is, at the end of this next one, “following four categories: all of them malignant, benign or skin
neoplasms of uncertain or unspecified nature.”
Take out “behavior.”
And on the next page, line 41, 42 —
41, change “behavior” to, for example,” “characteristics were analyzed by” —
oh, I — oops, my notes don’t make any sense.
Okay. We’re back to, again, the
same breakdown of malignant or benign and then you’ve got these four categories
again, so the same changes.
And then going over to 14 — page 14-10
or section whatever because on the bottom, it says 14-10. Line 309 to 311, it just seems to me that
last sentence in from that publication, the point was made that they — by the
authors — and I agree that the — one should approach this cautiously. But I think the importance was by doing the
study in a different way, doing a different sort, they found some significant
results.
I think just taking that last
sentence, “The authors of the journal noted this,” a lot of things are noted in
the journal articles. I don’t — I think
that just says to a reader that you’re trying to downplay that this was not a —
an important study and I don’t think it helps you to do that, so I would leave
that out going back to my sociology colleague over here.
And I think, again, the conclusions
could be strengthened a bit. If I go
back to in the final report, a problem I had with the things that were put in
the preface where it talks about the limitations, but it talks about that it did
not account for potentially important risk factors. I think if one were to just structure this
that “other potentially risk factors were analyzed in the publications,
finding, you know, cancer effects,” you know, something that leaves it. You’ve just talked about these three papers,
two of which have some — show some cancer effects. So I just think it’s the wording of that to
make it appear that you aren’t trying to downplay or just making a broader
statement about those publications. And
that’s it.
M. STOTO: I’ve got a comment on this cancer one. A number of the things on the VA presumed
list, whatever that’s called, are cancers.
And I think that many of them, in fact, are too rare to really have a
good enough power to detect in this study size.
And that may be — it probably would make sense to measure that — mention
that here in this chapter even in — even in the conclusion.
R. TREWYN: Good point.
M. STOTO: I don’t know whether that’s true with respect
to prostate cancer though. It’s not
true?
K. FOX: That’s not rare.
M. STOTO: I know it’s not rare; that’s why I’m asking
the question.
K. FOX: Yeah.
M. STOTO: I mean, has any — has anyone looked at a — is
there a ...
R. TREWYN: The 2004, I think, one of the two papers.
K. FOX: Yeah.
R. TREWYN: The most recent one showed the ...
K. FOX: Showed prostate.
R. TREWYN: ... statistically significant increase in
prostate.
M. STOTO: Oh, it does?
Okay.
K. FOX: Yes.
R. TREWYN: Yes.
M. STOTO: Great.
K. FOX: Yes.
R. TREWYN: That and melanoma.
M. STOTO: Fine.
Paul, you — turn on your mike.
P. CAMACHO: The paper — when you — what did you just
say? A paper from this — one of the
findings from this study that shows it is significant, but it’s not in this —
it’s not in this chapter? Is that what
you just said?
R. TREWYN: No.
P. CAMACHO: Okay.
Okay.
M. STOTO: Actually, Section 14.5 talks about high PSA
levels, significant and so on. And then
Section 14.3.2.6 on the top of page 14-8 is about prostate cancer.
R. TREWYN: No, it’s in the publications.
K. FOX: It’s 14.6.1, 6.2 and 6.3.
P. CAMACHO: If I could, you know, again, but it’s not in
the conclusion? I mean, you don’t make a
definitive statement in the conclusion that there is some connection?
M. STOTO: I mean, I think — I think this really does need
to be in the conclusion.
P. CAMACHO: Yeah, and you got that pesky ground crew
again. They show up all over the place.
M. STOTO: But I think that the point for the conclusion
is that there really are a couple of cancers that are raised to a level of
suspicion because of the VA presumption and that and you ought to say what you
found about them, you know. Some of them
you — the sample size just wasn’t big enough to say anything and say that.
P. CAMACHO: Yeah.
M. STOTO: And some of them you actually found positive
results and I think that’s important to say too. That’s what conclusions are all about really
is ...
R. TREWYN: Well, and it’s going to get back to the point
of when we were discussing the final report; of the issue of by not including
the most recent 2004 and now 2005 publications, the information in those where
by doing spraying days, whatever, various other parameters that you wind up
finding significant elevation in cancers.
And I think this gives you an
opportunity, especially since you had just cited those 2004, 2005 articles
here, to at least make the point in the conclusions because here is your
opportunity to say it’s a reason why this data needs to be maintained. So then by looking at other diseases with
these sorts — by sorting somewhat differently, not necessarily the parameters
that have been used throughout, but it gives you the opportunity to find some
significantly increased changes. And so
I think this is the place to make that point.
M. STOTO: Okay.
Thank you. Other comments on
Chapter 14? How about if we turn to
Chapter 15 now? Dr. Sills and
“Neurology.”
R. SILLS: I thought — I thought this section was well
written. I think one of the things we
need to add to this section in the introduction is a statement that “there were
adjustments for other known causes of peripheral neuropathy, such as
diabetes.” And I appreciate the staff
adding a point in the conclusion on page 15-11 where they said, “The authors
stressed that cautious interpretation of these results was appropriate until
the relationship between pre-clinical diabetes mellitus and peripheral
neuropathy has been further evaluated.”
One of the things that I worry about
is, I think as Mike has alluded to this, is capturing the major issues in the
study, so peripheral neuropathy is a big issue in terms of dioxin
exposure. And I think it’s captured, for
example, in the section on — Section 4 where you talk about “illnesses
presumptively recognized as Agent Orange-connected.” Now when you come to the conclusion of this
paper, we make statements like, for example, “Increased risk of peripheral
neuropathy has been somewhat indicated in the — in those personnel with the
highest levels of dioxin.” This is
conclusion statement, page 15-11, lines 363 to 364, 365.
And then you went — you went on to
say, “Some indication for an association with probable peripheral neuropathy
was found in the 1985, 1992 and 1997 follow-up experiments.” The problem I’m having here is we’re saying
it in the conclusions, but when you look at Table 15-4 and you look on the
“possible peripheral neuropathy” which is at the bottom, there’s no data that
show — that matches with what were you saying in the conclusions. So there are no X’s here and this is — this
is an important finding in the study.
And so here under, you know, I mean,
it’s just “polyneuropathy severity index,” maybe you don’t have that data. But somewhere along the line, we need to say
that, you know, you know, here, this is an indication of peripheral
neuropathy. We’re saying that, you know,
in the conclusion, “Some indication of an association with probable peripheral
neuropathy was found in the 1985, 1992 and 1997 follow-up experiments.” But when I look in this table, I see no data
in those brackets where you talk about peripheral neuropathy.
And so maybe you should explain
that. It’s — this is on 15-4 at the
bottom. And so I, you know, I mean,
that’ll be helpful that somewhere or another we emphasize the major points in
the study because here’s this table right here with all these X’s. And so my question is why isn’t there more
information on the peripheral neuropathy, which is the most important finding
in terms of neurological diseases? And
so I don’t know if the staff could help us a little bit with that?
And then the conclusions, one of the
things in terms of editorial — in terms of editorial — in terms of editorial
comments of how you — how you conclude statements or how you talk about journal
articles versus the reports, I’m not too sure you need to say — you need to say
this: “In a” — “In a 2001 journal
article, Michalek, et al. and colleagues performed additional
analysis.” I think you can just say
“Michalek, et al. and colleagues performed initial analysis” and just
cite it. I don’t think you always need
to write, “In a” — “In a 2001 journal article,” this is what it performed. You can just go ahead and say that “Michalek
and colleagues performed additional analysis” and this is what was found.
So I looked at the Section 4 where
we talk about the diseases associated with dioxin. Then I read the section on peripheral
neuropathy and which is an important issue in the study. And then when I came to the conclusions,
there was nothing on — conclusions which is Chapter 19 — there was no
discussion on peripheral neuropathy.
There was no — there was — there was
no discussion about, you know, these are early onset. These were — this, you know, these, you know,
in terms of dioxin’s a peripheral neuropathy.
And I think we really need to pull out the major things in the
study. And I know we haven’t come to the
conclusions, but in the conclusions, we need to pull out the most critical
aspects of the study. And there’s
nothing written on peripheral neuropathy in the conclusion and it’s an
important finding in Vietnam veterans.
M. STOTO: Yeah.
I want to support that. I mean,
that’s the first of the things on the VA presumed list, except that it’s acute,
and so that needs to be explained.
R. SILLS: Right, and so I — I’m like you, Mike. You know, I mean, and that’s where we need
the staff to help us to help interpret that ...
M. STOTO: Yeah.
R. SILLS: ... in terms of the audiences; is peripheral
neuropathy is something that’s well known in terms of dioxin. And so in terms of — in terms of the
conclusion, there needs to be a paragraph discussing that, you know, this is an
acute effect. We didn’t see it in this
study or, you know, because, you know, the studies were conducted later. But there’s all this presumptive evidence and
have a discussion about that.
M. STOTO: Yeah, and probably also the relationship to
diabetes too needs to be ...
R. SILLS: Has ...
M. STOTO: It needs to be reminded about that and how
that was controlled for or not ...
R. SILLS: Precisely.
M. STOTO: ... or whatever.
R. SILLS: And see, we ...
M. STOTO: Yeah.
R. SILLS: ... also need to add in the conclusion.
K. OSEI: Also, maybe Bob, you can help us out. The last sentence, “The composite indices for
assessing neuropathy, however, were weak and did not show the same association
that were present in the analysis of 1997 follow-up examination data.” What
were you trying to say?
The last — 378 and 77 to 379 because
you have a — 375, you made a bold statement that you have “increased risk of
abnormal pinprick examination absent patellar reflex,” which are, you know,
evidence of some neuropathy. Then the
next sentence, you know, talk about the fact that there was no consistent
association. And I think this is what we
see throughout the whole write-up, trying to explain each one and each event
rather than focus on what you found at the end of the day. Yeah.
M. STOTO: Okay.
Other comments on this chapter?
I’m just looking at the time and the agenda. And it turns out we do have a public comment,
so what I would like to do is to finish up this — reviewing this and then break
for lunch.
K. OSEI: Okay.
M. STOTO: And then come back, and do the comment and
the other things ...
K. OSEI: Okay.
M. STOTO: ... after lunch with, you know, a working
lunch if that’s okay? Okay. So then now let’s move to Chapter 16,
“Psychology.” Yeah.
P. CAMACHO: I — well, we’ll go — we’ll do it. I’ll try to do it fast. This thing is, again, this thing is — you’re
in trouble. If I look at the — let’s —
I’m going to try to go to the bottom line and then I’ll go back. And I really, I’m pointing this out to you
because I’m going to give you my reaction exactly what the community’s reaction
is going to be.
If I get to the very bottom line of
437, “In summary, there does not appear to be any clear evidence of disorders
or syndromes that can be associated with exposure to herbicides and
dioxin.” My — when they get to that
conclusion after reading this, their jaw is going to drop. I ...
RECORDER: I’m sorry.
Where are you?
P. CAMACHO: No, I’m talking about conclusion.
M. STOTO: The conclusion.
P. CAMACHO: 16-12, I have here.
M. STOTO: Section 12 on page 13.
P. CAMACHO: Oh yes, page 13, Section 12. All right.
You see the conclusion? The last
— basically the last two sentences or the last sentence: “In summary, there does not appear to be any
clear evidence of disorders or syndromes that can be associated with exposures
to herbicide and dioxin.” All right. May — can I — should I go? Okay.
I cannot see how — see, first of
all, I just wrote the stuff down. I
can’t see how you get to this conclusion given the prevalence of higher scores
in the majority of all the scale measures, particularly when in the
introduction you say only — you only discuss the pertinent findings. You realize how many of these things — and
it’s a scale. You might want to say
where on the scale: low on the scale so
you wanted to dismiss it or high on the scale.
Do you know how many times you’re
saying the word “greater prevalence,” or “higher scores” or “higher than
average scores?” You use that in all
these tests. It’s throughout the entire
chapter. People read — if it’s — it
frankly, reading the thing, you’d say, “My God, these guys are in serious
trouble.” Look at — just look — grab
some of these and then notice you got — then is — I — here’s another
question. I’m trying to get rid of this
stuff and to get to the main stuff.
Is education being used here as a
confounding variable or is — do you think it’s — is it being — I get the sense
that it’s put out there and it’s left for the reader to decide whether this is
a confounding variable or an implied factor in saying why some are showing more
symptoms than others. So that’s one
piece; then there’s another one, but let me — let’s go down.
The “Chapter Structure” stuff, the
Cornell Index, ten scales; the medical index, three scales; alcohol dependence,
well, I mean, that’s the other thing. Is
alcohol — are you saying that’s a confounding variable, or you’re trying to —
are you implying or is just left up to — for anybody to guess, or you’re saying
that this is possibly an outcome of the exposure? I wouldn’t — I would think you’re saying it’s
a confounding variable. I mean, alcohol
dependency has plenty of things to bring that up besides exposure.
And MCMI, 20 scales; MMPI, 14
scales; others; question; these are the bolds.
You get to the sleep disorder, and you have a couple and then you have
the unbolded sleep disorder. So you have
— like that’s opened up, but the scale measures, what were these scales? That’s collapsed into just those scales.
Ranch Handers showed higher
things. All right. Let’s go through the — I said the education
with that pesky enlisted ground crew shows up again and nobody explains that
piece. I mean, I’m being — I guess I —
and I’m not trying to be too — but I’m a — I’m a former enlisted man; that’s
why I’m bringing this up that ground crew shows a higher prevalence of things.
Now is the education thing the lower
thing? What about higher levels? Did the high levels did not — low dioxin
category implies that there was a high dioxin category and those guys washed
out? What happened to the guys on the
high? The sleep problems, then we get to
the Cornell Medical Index: “scatter of
complaints, the A-H subscore” — 127 — “a measure of scatter complaints
indicating a diffuse medical problem, although other interpretations were
possible.”
Was this significant and do we list
them? If so, are you obligated? And if other interpretations are possible and
that negates the significance, are you obligated to discuss those? That’s just a question. And then I said, “Ranch Hands” — I look at
this, 131, “had a higher (adverse) average.”
Mike, I put notes, but the M-R score was normal? Did that — I don’t get that; 135, 136, 137, the
“20 scales was constructed as an operational measure derived from a theory of
personality and psychopathology.” What
theory? There’s a gazillion theories out
there. I’m a sociologist, not a
psychologist, but what theory? Do you
have an obligation to at least name it?
You know, and so you had six
moderate down at the bottom: “Nine of
the MCMI measures precipitated,” et cetera and three other scales of
severe disorder. So let’s go through
this. No ...
M. STOTO: Just a second, I mean, you’ve got lots of
specific things and I don’t know whether — I suspect you’re not prepared to
respond to these?
P. CAMACHO: I don’t know.
I’m just pointing them out. I
mean, I don’t — I just — I just want to point them out.
M. STOTO: No, I’m — I’d like to ask them a question.
P. CAMACHO: Okay.
M. STOTO: I presume you’re not prepared to respond to
them one-by-one right now?
K. FOX: Correct.
M. STOTO: Right, so the goal here is just to list these
things for you to have a chance to respond to later.
P. CAMACHO: So to get through this more quickly then.
M. STOTO: Okay.
P. CAMACHO: Well, let’s underline every — look at — look
at the places. Avoidance scores, where
did I — I’m almost — put on the avoidance other confounding variables in all of
this: the dependent, a
passive-aggressive, lifetime drink years earliest. The real part gets on page 16-7: “MCI borderline increased as the dioxin
increased;” next, “higher average;” the next one, “increased;” the next one,
“higher than average;” the next one — I’m now looking at line 206 — increased,
“Ranch Hands increased;” score was also “increased in black Ranch Hands;”
“increased as ‘87;” back to the next one on 217, “one of the three scales
increased.”
So in 18 scales of 20, there was an
increase. But the conclusion said
there’s no — nothing to worry about. I’m
just — let me go through it. I’m trying
to save the Air Force here in a way; 18 — look at the Minnesota one. The same kind of thing: eight of 14 show an impact and high scores,
high scores, high scores on almost all of these things; then back to that
educational piece.
If I go to the next one, the serum
and the MMPI stuff, I get confused around 273, 4, 5 and 6: “No positive associations between level and
clinical elevations were observed based on the ‘85 follow-up. No association between dioxin and
post-traumatic stress disorder, as measured from the MMPI.” Well, you say that there, but we’re back to
the previous ones. I’m telling you that
the reader is already predisposed to say, “What the heck’s going on?” I’m just going to tell you that.
M. STOTO: Okay.
P. CAMACHO: All right, so that — I would go through this
whole thing and be able to — I know you want me to end this as — be quickly.
M. STOTO: No, what I’d like you to do is to go through
that in writing.
P. CAMACHO: You want me to get back and produce ...
M. STOTO: I mean, I don’t think that — I think we can
use our time more productively.
P. CAMACHO: All right.
Fine, but my bottom line is if you walk through this and look how many —
just count how many times “higher,” and “increased” and “greater than average”
is used. You — the average — the
layperson coming to the conclusion says, “How can you say that there’s no
impact?” That’s the first thing they’re
going to come to. It’s impossible for
them not to come to this conclusion because the conclusion on the last sentence
does — makes no sense compared to what I just read. And that’s what they’re going to say to you.
M. STOTO: That’s an important review and I think it
really needs to be addressed very carefully.
P. CAMACHO: But I’ll — yeah, I’ll try to put it in
writing. But I’m giving you the heads —
the — I’m trying to do my job and help the ...
M. STOTO: No, I think that’s — it’s appreciated. I had one thing about this chapter. I noted that you often look at blacks and
non-blacks here, which is unusual and they were in the report. I’m not sure if it appears in any other
chapter.
K. FOX: It’s that particular year. When you look at what part of it is that this
is very limited, the values are only from, what, 1987. So you don’t — there’s a lot of these that
aren’t carried throughout and all, so it’s only one time. And I’ll have to tell you, that report looked
at it a lot of different ways that we didn’t continue on looking at it. So that’s part of the problem; is that it’s —
we’re citing a lot of stuff from 1987 that really did some subdividing of
things. And when you lumped them more together,
they weren’t — it wasn’t positive; it was only this. If you sort of ...
M. STOTO: Why ...
K. FOX: ... didn’t look at this one thing ...
M. STOTO: Why does this ...
K. FOX: ... that’s all we saw.
M. STOTO: ... not show up in cardiovascular? Did they look, or they didn’t — they didn’t
find anything or ...
W. GRUBBS: It does for some.
K. FOX: On some, but unfortunately, when you look at
what we looked at psychology and all, most of the ones that had all these
things is 1987, which is the one that looked at it in a different — and
subdivided it so much. And unfortunately,
you don’t — when you stop subdividing it and you go to the bigger group, then
you’re not seeing anything; that’s the problem.
So I think I have to explain that is what you’re telling me. Here is a unique study group that it’s all
positive because it’s 1987 and we divided it up into small groups, but when you
put them together and you — and all, it disappears.
P. CAMACHO: And then they’re going to go, “You’re damned
if you do, damned if you don’t.” I know
that.
K. FOX: Well, I already know that.
P. CAMACHO: I already said so they’re going to say to you
why wasn’t it looked at ...
M. STOTO: No, that’s not what I’m saying.
P. CAMACHO: ... in other — why wasn’t the breakdown ...
M. STOTO: No, that’s not what I’m — what I’m — what I’m
saying is that, I mean, if it’s — if it’s there in the 1987 analysis and it’s
there kind of consistently across a number of different measures, that may be
something worth thinking about. But I
think you need to think about it in a different way and maybe you should,
rather than sort of pull it out, you know, one place at a time and maybe you
should say that, you know, in 1987, it was looked at. In addition, it was looked at, you know,
broken up by race, and they found some interesting things, and here’s kind of
the general finding there, and then refer back to the 1987 report.
K. FOX: Okay.
M. STOTO: Because I think this here, this makes it seem
more complex and more than it — than it is.
K. FOX: And I think that’s what — yes.
M. STOTO: Yeah.
K. FOX: It’s the way the 1987 came out.
M. STOTO: And that may or may not be meaningful, but
that was presumably handled in 1987 and you can ...
K. FOX: Yes.
M. STOTO: ... go back to those conclusions.
K. FOX: And it kind of — some of the things that they
pulled are risk factors that you would think about that increases some of the
stuff so ...
M. STOTO: But race ...
K. FOX: ... social, economic, type of education all
have some — are known to confound these things and so they subdivided it.
M. STOTO: Well, but this class of stuff is treacherous
and I think you need to be careful in how you deal with that.
K. FOX: We’ll try to explain it a little bit better.
M. STOTO: Sandy?
S. LEFFINGWELL: In the 1987 analyses, were there
significantly more than five percent of the tests done positive?
K. FOX: I don’t know.
And I’m looking at the statistician and he’s not sure either, so the
answer is I don’t know.
K. OSEI: The — Mike, the — I think the whole issue of
race and ethnicity is critical, especially cardiovascular and diabetes, so we
need to tease that out.
K. FOX: That ...
K. OSEI: You know ...
K. FOX: For those ...
K. OSEI: Yeah.
K. FOX: For those things, those are usually our
confounding factors and so we do control for those.
K. OSEI: Okay, and I don’t know how you can, you know,
we say we can — do control for it. But
did you really separate how many blacks were in the group that you analyzed
versus non-blacks and asked that fundamental question instead of saying you
“controlled” by what that specific analysis between blacks and non-blacks
because of the ethnic and the genetic predisposition to the disease?
I don’t know how you can control,
you know, the genetic predisposition in the — in the — in, you know,
statistically. And so the question will
be blacks versus non-blacks, how many people had diabetes? How many had cardiovascular endpoints? And just look at that unless you say you
don’t have enough statistical power to look at that. And I guess that’s the same here, so what did
they look at?
M. STOTO: I think that when you say they’re
“controlled,” that means that race was a factor entered into the ...
K. FOX: Yes.
M. STOTO: ... regression equation.
W. GRUBBS: Correct.
K. FOX: Correct.
M. STOTO: Simple as that, which is a — that, you know,
that is one meaning of the word “controlled,” but that’s not ...
K. OSEI: But that doesn’t ...
M. STOTO: Yeah.
K. FOX: I’m not a statistician. I can’t definitely ...
M. STOTO: I mean, I think that’s an appropriate
use. But I think it’s important to
recognize the limitations of that and it’s probably as much as you can do given
— I’m sure that the number of blacks was relatively small in the — in the
sample. Okay. Anything else on psychology? Okay, so Paul, really I think that writing
that stuff out would be really very helpful.
Yeah. Yeah.
P. CAMACHO: A one- or two-pager?
M. STOTO: Yeah.
Whatever — however it is convenient.
I don’t know.
P. CAMACHO: Send it to you?
M. STOTO: Yeah, probably send it to Kim and then who’ll
distribute it. Yeah, maybe send copies
to the Committee too. Okay. Yeah.
Okay. It’s almost 12:00, but I
think that the next three chapters are relatively — are going to be brief. So let’s go ahead and do “Pulmonary.” David, you can also, if you want, also go
back to the other one at the same time too.
D. JOHNSON: Okay.
I noticed on — this is a minor thing on line 35, page 17-1. It says, “The IOM report consistently
concluded there was inadequate or insufficient evidence to determine the
existence of an association between exposure to certain herbicides used in the
Vietnam War and non-malignant respiratory disorders.” Now when I read that, I’m going to — I’m
right away I think that, well this — were there malignant disorders? Were there?
M. STOTO: Yes.
D. JOHNSON: There were malignant disorders, respiratory?
M. STOTO: Respiratory cancers.
D. JOHNSON: Significant respiratory malignant
disorders? Because I didn’t ...
M. STOTO: I think it was limited suggestive for that.
D. JOHNSON: There was?
M. STOTO: Yeah.
D. JOHNSON: Okay.
Otherwise throughout this, you know, for the different things assessed —
asthma, bronchitis, pleurisy, pneumonia, hyperresonance, rales, wheezes, FEV,
FVC, et cetera — there was a sporadic finding here and there. But I think in the conclusion in this case,
it’s written in a way that explains that.
It says, the “Patterns that might be
expected if there were dioxin or herbicide effects on the pulmonary function,
namely consistent results across examinations, an adverse health effect for
Ranch Hands or Ranch Hand enlisted crew, and adverse effects to Ranch Hands in
the high dioxin category, were not evident.
Sporadic and isolated effects were present in many of the endpoints
examined, but there was no consistent evidence to suggest that herbicide or
dioxin exposure was associated with ill effects on respiratory health.” So that’s what we’ve been ...
K. FOX: We’ll try to repeat that.
D. JOHNSON: I think that needs to be — that needs to be
used and hopefully, the layperson will understand that. It’s clear to us and hopefully, that’s
understandable. For the “General Health
Assessment,” as you mentioned, the body fat was associated with high dioxin and
that’s thought to be not the dioxin cause in the ...
M. STOTO: So go back to Chapter 11 now.
R. TREWYN: Yeah.
D. JOHNSON: Go back in Chapter 11.
M. STOTO: Were there any other comments on the
pulmonary ...
D. JOHNSON: Not from me.
M. STOTO: ... before we go on? Okay.
Let’s go back to 11.
D. JOHNSON: Okay.
Again, like you were saying that the association with obesity, however,
it was thought that the dioxin, not causing obesity, but the obesity causing a
retention of dioxin. And the conclusion,
I think, states pretty much — this is pretty straightforward there. I mean, we found this; we found that. And in the conclusion, it brings out and
restates the findings that weren’t consistent.
They weren’t — where they were not consistent though.
But now on page — on line 83 it
says, “At the 1992" — this was a good example of why you can’t take an
inconsistent finding and go make too much out of it. It says, “At the 1992 follow-up examination,
the percentage of Ranch Hand officers who appeared older relative to his age
decreased as the dioxin levels increased.”
So I would hope that people wouldn’t take that to mean they should
consume dioxin to maintain their youth — youthful appearance. But that, I mean ...
R. TREWYN: That guy in, yeah, in Europe, who — yeah,
they’ve got — it didn’t help his appearance.
D. JOHNSON: I didn’t have any other comments.
M. STOTO: Yeah.
K. OSEI: Mike, the only comment ...
D. JOHNSON: My comments were pretty straightforward.
M. STOTO: Okay.
K. OSEI: ... Dave, was even the location where this
“General Health” is placed, you know, when you talk about all the
diseases. And then all of a sudden we
get here and we have “General Health Assessment.”
D. JOHNSON: Was that alphabetical?
K. OSEI: It’s Chapter 11.
D. JOHNSON: Alphabetical.
K. OSEI: Alphabetical, okay.
K. FOX: Yeah, alphabetically.
K. OSEI: All right, because it just threw me off. I would ...
K. FOX: We could — when you think about this, again,
multiple discussions as to how to organize this and we just decided the
chapters would go alphabetical when we got into the organ systems.
D. JOHNSON: You could consider, make an exception for
“General Health.”
K. OSEI: Yeah, “General Health” ...
R. TREWYN: Yes.
K. OSEI: ... and everything else.
D. JOHNSON: You know.
K. OSEI: Yeah.
J. ROBINSON: We can put them anywhere you want.
K. FOX: If you want it in the front, that’s fine.
D. JOHNSON: No, not necessarily, but that’s so — it is
kind of unique. “General Health” is just
such a general thing that ...
K. FOX: Okay.
D. JOHNSON: And then you could — but ...
K. OSEI: Yeah.
D. JOHNSON: Okay.
M. STOTO: Okay.
Thank you. And Sandy for “Renal,”
Chapter 18.
S. LEFFINGWELL: Yes. I
think I had only two problems with that on lines ...
RECORDER: Microphone.
S. LEFFINGWELL: I had only two problems with that on lines 32
through 36. I just came away not quite
understanding what I was being told and I can’t offer any suggestions for
fixing that paragraph. Even looking
through the chapter later, I’m not quite clear what I was being told.
M. STOTO: Julie, you want to speak to the mike?
J. ROBINSON: In some of the chapters, there was, you know,
people who were younger; people were older and it wasn’t defined. And I don’t believe anywhere in this chapter
age is an issue, so it wouldn’t be ...
W. GRUBBS: Line 63.
J. ROBINSON: Oh, is it?
Okay. Yeah, younger non-black
Ranch Hands, so that just explains to you who the younger Ranch Hand would be.
K. FOX: And the problem was the definitions changed
due to the different examinations. And
when there’s a positive one, we thought you — we should explain what we meant
by “younger” and so that’s where that was coming from.
S. LEFFINGWELL: And then the only other area I had was in
line 54. “More Ranch Hands had a higher
average” seems repetitively redundant or something like that.
M. STOTO: Okay.
I think what I’d like to do is break for lunch now, and come back and
just spend a little bit of time looking at this globally, and in terms of the
conclusion after we do lunch. We also
will hear from Rick, want to speak on behalf of the — in the — in the public
session. So why don’t we try to pick up
our lunches, and come back to the table maybe in 15 minutes and then we’ll get
started? Is that okay with people that
we work over while we eat our lunch?
Okay. So at 20 after 12:00, we’ll
get ready; we’ll get started again.
Thank you, everybody.
[LUNCH 12:05
P.M.-12:22 P.M.]

M. STOTO: I’d like to call the meeting to order.
R. WEIDMAN: Am I on?
Hello?
M. STOTO: Yeah.
R. WEIDMAN: Madame Recorder, I left my card with you for
the spelling. My name is Rick Weidman,
Director of Government Relations with Vietnam Veterans of America. I’ve spoken to this Committee on behalf of
Vietnam Veterans of America many times, so I won’t be redundant in most of what
I’ve had to say before having to do with the design of the study itself. The — there are significant problems with
that.
Having said that, I would draw your
attention and perhaps the most important thing that can be done now and that
this Advisory Committee can do and the Air Force can do is to follow the
recommendation of the Institute of Medicine panel that in their most recent
review that was an interim letter report that was delivered just recently.
In terms of translating the data now
into a standard format in order to preserve that data for the future, number
one, and number two, is to ensure that the samples, the integrity of the
samples, chain of custody and the physical custody in the sense of freezer
maintained, et cetera, are maintained while the Congress makes its
decision and IOM finishes up their recommendations, this panel of scientists,
in terms of making a recommendation to the Congress about the disposition of
the study from this point forward.
I cannot stress to you strongly the
obligation that the Air Force has to do this.
It’s — we have spent over $140 million on this. The public has invested this money — wisely
or not, one can argue — but the point is the data belongs to the people of the
United States and to be made available to reputable scientists, and scientific
institutions and academic institutions across this country in the — in the
future for further analysis and mining, if you will, of the data sets that
exist.
The general comment — first a
question I would ask and something that came out of the last Ranch Hand
Advisory Committee was that there is an additional study being planned that
would be a comprehensive look at the entire study, not just the segments, but
the entire study. And let me ask you, is
this going to then be that? But then
it’s my understanding the gentleman from SAIC who spoke up said that there was
going to be an additional protocol developed.
Colonel, can — or anybody from the Air Force, can you answer that
question?
K. FOX: The comprehensive is the one that’s in the —
in your hand.
R. WEIDMAN: In my hand?
Okay.
K. FOX: Yes.
R. WEIDMAN: Thank you.
K. FOX: And it’s just, again, it’s not — it’s
summarizing the — what we found in our portions of the study.
R. WEIDMAN: Okay.
Thank you, ma’am. I would then
follow through with a — with a general comment; is that the conclusions are not
supported by the data presented. That is
not the first time that’s happened in the past 20 years in the interim reports
and the — and the periodic reports issued by Ranch Hand. It, unfortunately, has been a pattern that VA
has existed and all comments on Ranch Hand of conclusions are not supported by
the data. And if you go back and analyze
the data and what was actually there, the conclusions ...
M. STOTO: If you have specifics ...
R. WEIDMAN: ... are not supported. I under — I understand that, Michael, and I’m
just adding to it and ...
M. STOTO: And if you have specifics — if you have
specifics along those lines, I think that you should submit them to the Air
Force with a copy to us and we can see whether we want to support them or not.
R. WEIDMAN: Michael, I will do just that and that length
if that’s okay with you, not only in terms of specifics, but in terms of
general conclusions. The problem is from
our point of view is that the press is going to read that bottom line. And it’s
very hard to convince our guys that it’s the Air Force has not set out, and DOD
has not set out and SAIC has not set out in order to deceive by the
conclusions. Whether that’s true or not,
I make no judgment and VVA makes no judgment.
I’m just telling you that that’s the
perception that’s going to be among our members and it is something — a real
problem. Paul pointed it out a little
bit before. I — but I’ll strengthen that
because I’ve got to go back and deal with my members and lay leadership. And they are going to say they’re not telling
the truth and that whether I don’t — I personally make no judgment on that and
our organization doesn’t, but I will tell you that that’s going to be the
general perception in there.
There should be time now to correct
that if, in fact, you put your mind to it in the last year, year and a half of
the study. That’s really all I
have. I will follow up with that written
report as suggested by the Chairman and I thank you for the opportunity to
present.
M. STOTO: Okay.
Thank you, Rick. The first point
about going back to the IOM report — which we heard discussed earlier, actually
discussed a lot this morning — I think that what I heard was that our Committee
supporting of it, being very supportive of it.
And I think I heard the Air Force suggesting they were already moving to
do many of the things that were suggested in that interim report. But maybe it would help actually to be formal
and then just to indicate our Committee’s endorsement of that — of that
report. Is that — do you think that
would make — how do people feel about that?
P. CAMACHO: I don’t know if they came to a conclusion
really. They came — they said that the
Air Force should prepare the data ...
M. STOTO: But they came to ...
P. CAMACHO: ... and that they’re looking at it.
M. STOTO: They came to a very specific conclusion on
one of the five charges.
P. CAMACHO: Yeah, and that I’ll agree with.
M. STOTO: Yeah.
I mean, I’m obviously can’t pre-agree to the other four. But for that one specific thing that we spoke
about this morning and, you know, and we had the written report. How do others — how do others feel about
that?
R. TREWYN: Well, I guess we’ve certainly made the point
in the past that we support the retention of the data and the specimens for
future use. And I certainly don’t think,
you know, so that would be ...
M. STOTO: It’s consistent with what we ...
R. TREWYN: It’s consistent with that, absolutely.
M. STOTO: Yeah.
Okay. We probably should actually
vote on this.
D. JOHNSON: Could you just state it once more clearly
what we’re voting on?
M. STOTO: I think that we would like to — the Committee
would — endorses the findings from the Institute of Medicine’s interim report
and give the title and so on. Yeah, and
I mean, that way we — we’re not — I think it’s important that we’re — that
we’re saying it’s their report and we’re endorsing it. We’re basically adding on to it rather than
try to say we came up to those same conclusions ourselves. I don’t — I think ...
R. TREWYN: I mean, perhaps we could say, I mean, most of
us have not had a chance to read through the material that was left, but we
heard the presentation. And I think the
— that we could certainly be supportive of this effort by the Air Force to
continue, you know, to follow through with what’s been asked; that this is
consistent with the long-standing stance of this Committee of the importance of
retention and those sorts of things. So
it just sort of maybe blessing, endorsing, whatever, this approach; that we are
— we are appreciative of it.
K. OSEI: Mike, can I add? The other alternative would be to actually
support the objectives, the five objectives that have been presented here for
us and also the spirit of doing this.
This is what we — where we — because we don’t have the final, so the
intent and the spirit we can ...
M. STOTO: Well, we’ve already — I think we already have
done that.
K. OSEI: Right.
Okay.
M. STOTO: But the issue is whether we want to endorse
the specific conclusions with respect to one of the points.
P. CAMACHO: Like this conclusion ...
RECORDER: Turn your mike on, Dr. Camacho.
P. CAMACHO: Like this, see, we’ve got to be careful, I
guess. Like this conclusion in bold on
page 6, the Committee concludes that “the present state of the documentation or
organization of the AFH medical records and other study data and laboratory
specimens is an obstacle to retaining and maintaining these materials after the
currently scheduled termination date.” I
— but that contradicts the notion of let’s try to get these things in
shape. I mean, I’m sure there might be
an answer.
M. STOTO: No.
No, it doesn’t.
P. CAMACHO: I don’t know.
It’s an obstacle.
M. STOTO: An obstacle, so something needs to be done.
P. CAMACHO: Something needs to be done about the
obstacle. Somebody worried could say,
“Well, the obstacle becomes a reason to jettison.” I — I’m just — Rick just got up there and
told you nobody’s — trusts anything.
M. STOTO: Okay.
P. CAMACHO: So I — I’m happy to — I want to see the — I
think all of us have gone on record individually and in the Committee, we gone
on individually. We want to see
everything done that can be done to make the study data available to
independent researchers.
M. STOTO: That’s different from endorsing the
report. That is not what the report
says. I mean, that doesn’t — they’re not
— I don’t think they’re inconsistent with one another, but that’s, I guess, I
would prefer not to call the question if it’s not going to be unanimous. Right.
R. TREWYN: Can I suggest something here? I believe because, as I recall, we were going
to have some additional follow-up on what the Air Force is planning to do and
we’re going to get into an issue related to the very last point that was made;
that additional funds separate from existing may need to be allocated to this
so ongoing studies can continue. If that
— and I don’t know where that’s going to wind up.
So maybe we could defer until the
end of the meeting to see where — because I don’t know what they’re going to
say. Whether they’re going to cancel all
the ongoing studies and put all that money into meeting the tasks that are laid
out in this or are they going to say yes, we’re going to continue the studies
that we’ve talked about already, et cetera? So ...
M. STOTO: Okay.
So that’s a — that’s a fair point.
So let’s defer that until we hear the other reports on — from the Air
Force.

M. STOTO: Ron, you’re next on the agenda to tell us
about your experience of being on TV.
R. TREWYN: I will make this very quick, very fast since
I did stay up last night to find out what they actually did out of the — out of
the material they filmed, how much actually got incorporated. And probably if any of the Air Force Study
team viewed that, that they may have noted that I didn’t have an awful lot of
favorable things to say. I will say I
did say a few favorable things, but those didn’t make it into the edited
version.
But a couple of points; one is, and
I will go back to the — I have this down here — the “KGC” approach; that’s the
“kinder, gentler Camacho” approach that we’ve seen thus far today. Going back to our November meeting a year
ago, clearly I had some specific recommendations on the cancer chapter. The Committee had some specific
recommendations overall. In particular,
I focused in on some of those in the conclusions.
We were told at the June meeting
that most the suggestions were incorporated.
That certainly was not true in the cancer chapter; editorial changes
were made. It was also not true in the
conclusions overall. A fair number of
changes were made in the introduction.
But the arguments I think we were
coming up with a year ago, had a lot of that information been put into that
final report, we could’ve then — I could’ve then very legitimately taken the
stance that yes, they’ve got new information by resorting, by analyzing the
data in a different format than they had been up to this point. They are finding now new things and utilizing
that as an argument to move forward.
As it was, I have to say that the —
I’ve been very disappointed in the stance that was taken in this and I
expressed it, so it was on last night.
M. STOTO: Any other — any response to that or other
comments on this? Any other — either
response to Ron or other comments about the show?
K. OSEI: I don’t know anything at all on this. I don’t understand what you’re talking
about. What was this about?
M. STOTO: Last night — last night, Nightline ...
K. OSEI: Oh, okay.
M. STOTO: ... did a show about the Ranch Hand Study.
K. OSEI: Oh, okay.
M. STOTO: Yeah.
K. OSEI: Okay.
J. ROBINSON: We did include your statement in the
introduction in regards to the journal articles. The report itself was specifically on Cycle 6
examinations. We’re writing the summary
report to include a comprehensive view of what you’re particularly interested
in — cancer.
M. STOTO: Okay.
Thank you.

M. STOTO: Mr. Ogershok?
Is there ...
K. FOX: It’s Lieutenant Levy.
M. STOTO: Lieutenant Levy?
S. LEVY: I don’t look like Mr. Ogershok. Okay, John?
Mr. Ogershok can’t be here today.
He’s the Program Manager for Ranch Hand down at Brooks City-Base, the
Human Systems Group in Texas. He’s
unable to be here today for medical reasons, but he wanted to extend his
greetings to everyone here, all the — yes, and the Committee.
I’m Lieutenant Susan Levy. I’m the Deputy Program Manager for Ranch
Hand; I’ll be briefing you today. I’d
like to start by saying that the system — the Program Office, our Human System
Program Office, we provide the financial and acquisition support to enable the
Air Force scientists and technical team to accomplish the protocol requirements
and activities.
We’ve got three topics today to
discuss: total costs for the Ranch Hand
project, also the FY’06 budget, and FY’06 contracts. The total project Ranch Hand epidemiology
study costs starting in 1981 were, including our estimated budget through the
30th of September 2006, is $139.5 million. This includes the 13,177 physical
examinations that have been given, including all the participant travel,
lodging, meals. It also includes all the
data collection, storage, analyses, report writing and journal articles. So that’s a lot of work for $139 million.
The FY’06 budget, it’s going to
include all kinds of intramural or in-house activities and also some extramural
activities: our in-house activities, the
routine activities, the data retrieval, storage, coding, scanning, analyses,
medical records maintenance, writing, editing, not to be forgotten, Program
Management.
And this also includes some other
intramural activities: the mortality
analysis and reports; the Congressional reports and briefings; final articles
and technical reports; disposition of medical records, data and specimens; also
the disposition of the equipment, the computers. Hard drives have to have Privacy Act, HIPAA
data. And then there’s also our
extramural activities and which includes the tasks that we’re placing on
contract.
So for FY’06 contract efforts, we
have our SAIC plan modifications. Those
modifications include the longitudinal summary for Cycles 1 through 6; the
study history; multiple analyte profile testing for specimen viability and
relational information warehouse. We
also have the CDC serum sample testing for dioxin congeners and other chemical
measurements. So that’s what we’re
doing.
The Ranch Hand Program Management,
you know, is trying to do everything they can for the Institute of Medicine as
far as our budget, finance and time constraints will allow us to.
M. STOTO: Can I ask what the relational database is?
S. LEVY: Do you want to ...
K. FOX: We’ll be discussing that later on and ...
M. STOTO: Okay.
K. FOX: ... and the — what we’re planning to do in
the future.
M. STOTO: And the congeners is going to be discussed
later on too, right?
K. FOX: Yes.
S. LEVY: Right.
M. STOTO: Okay.
Any questions or comments from the Committee? So what about are we going to discuss the
response to the IOM’s suggestion that more money be added to do this thing?
K. FOX: That will come up when I — we tell you what
we’re planning to do.
M. STOTO: Okay.
S. LEVY: And we’ll be talking about it.
M. STOTO: Ron?
R. TREWYN: I can at least say one thing, nice thing that
I did on Nightline then because I was convinced by their crew that it
was a $120 million study even though I had said up front it was $140. So I referred to it as a $120 million study,
so I just knocked off $20 million.
S. LEVY: Even more work ...
M. STOTO: You saved the government $20 million.
S. LEVY: ... for $20 million less. Good job.
That it?
M. STOTO: Okay.
Thank you very much.
S. LEVY: Okay.
M. STOTO: Okay.
So the next thing we have on the agenda is Karen to speak about the —
Karen, the two things that I have left here don’t sound like it’s what you —
what you just mentioned you’re going to talk about.
K. FOX: No, because I have other things at the other
end. I have some more stuff at the last
— the latter part, the future ...
M. STOTO: Okay.
K. FOX: ... collaborations and all that. Yeah.
M. STOTO: Okay.
I thought that we were — we were going to do that this morning when
David was still here. But anyway, let’s
— we didn’t, so let’s move ahead.

K. FOX: Okay.
All right. On 6 October ‘05, I
briefed the House and Senate Veterans Affairs Subcommittee. And the topics that I covered were the
results of the 2002 follow-up examination results; the publications that we had
done since the last time we briefed them, which was in January ‘04.
I talked about five publications,
and then what we presented at scientific meetings, and how we were involved
with this Committee, and then what we had been working with with the Institute
of Medicine concerning the disposition of the study. And then I briefed them on planned research
activities that we were having in the future.
And it seemed — the presentation seemed to be well received and they
invited us to come back at the end of the study next year. Any questions on that?
M. STOTO: Questions?
K. FOX: And then on 8 October ‘05 that same week, the
Ranch Hand organization had a reunion down at Fort Walton Beach. They had about 50 participants — 50 Ranch
Hand members and their family members present.
And during their dinner, I briefed them also on what I had briefed — the
same topics that I had briefed at the Congress and all. And I believe — what year is it that their
reunion — next year — next year is the 40th. Next year is the big time period for their
reunion — the reunion. And I can’t
remember which year it was, but they’re hoping to have a large turnout then.
M. STOTO: Okay.
That’s 40 years after 1966.
K. FOX: Yeah.
M. STOTO: Yeah.
K. FOX: Yes?
R. WEIDMAN: If it’s okay with the Chairman, I’d just like
to ask one question about their reunion, ma’am.
RECORDER: Please use a mike, sir. I’ve got to record every single word.
R. WEIDMAN: Thank you.
Of those 50 participants who were at the reunion with their spouses and
others, how many of those would be, in your estimation, enlisted versus
officers, in other words, crew versus pilots and copilots?
K. FOX: I — I’m sorry; I really do not have an idea
of that number in all.
R. WEIDMAN: Was it sponsored by the Ranch Hand
Association?
K. FOX: Yes.
It’s the Ranch Hand Association’s reunion that they have every year and
down at Fort Walton, except when there’s a hurricane that kind of takes care of
a hotel.
R. WEIDMAN: But it — but it’s always at Fort Walton Beach
and in the same time period?
K. FOX: Yes.
It usually is. It’s always on
that weekend.
R. WEIDMAN: Thank you, ma’am.
M. STOTO: Okay.
K. FOX: And the follow-up on the 2002 follow-up
physical examination, it was officially result — released on 8 July 2005. We’ve responded to some numerous e-mail
inquiries about it and it’s available at this web site.
M. STOTO: Okay.
K. FOX: Okay, and I think that was — and do I keep on
going? I’ll keep on going. Okay.
I keep on going. Some of the
activities that we’ve got scheduled or that we’ve contracted, one is the Air
Force history study and I’ve talked about that.
It’s looking at from basically when Buckingham’s — from where
Buckingham’s book ended and two, concerning about the — how we formed the Ranch
— Air Force Health Study and the history on that. And at this time, it’s only on contract for
outline. It is — does not have for it to
be fully written so, and it’s — the outline, we’re hoping to be ready by the
end of — the middle of February.
M. STOTO: So what does that mean? That the — that SAIC will prepare an outline
and then what happens to the outline?
K. FOX: Now it’s going to be a balancing of all the
other things that we’ve got going on to try to see if we can make it happen. It’s — the contract does have an option to go
and complete the history. It’s just that
are we going to have enough money?
M. STOTO: I see.
K. FOX: So it hasn’t been let out on contract, but it
is a possibility and one that we would like to see done.
M. STOTO: Okay.
Comments or — maybe we should hear about the whole range of these things
and then see if there are ...
K. FOX: Okay.
All right.
M. STOTO: ... more comments about the priorities among
them.
K. FOX: And you’ve already seen the comprehensive
study, which has had other words of “longitudinal” and all that. But the ...
M. STOTO: Right.
K. FOX: That is — you can see where that is at this
time and we’re still obviously going to take your comments. Collaborations: we’ve developed some new guidelines for
collaborations, past and present, due to the fact that we’re about to — the
study is ending. And so we’ve put some time-lines down for our collaborators as
to when we expect the paper, and results from our information and the stuff
that they have to take.
We’re getting — we’re working with
CDC in the dioxin congeners and Dr. Pavuk will give a lecture on that
afterwards to show you the preliminary — what we have of 106 samples on
that. UC-Davis was the adipose tissue and
that has basically ended. We’ve gotten
the last information from that. Texas
Tech with Dr. Lynne Frame is submitted three papers too concerning dioxin and
insomnia, sleep disorders. And that’s
what’s listed and that should be submitted shortly for publication.
We also have on contract a
compliance study looking to see the factors that impacted study participation
in the six-month — six follow-up examinations, and to analyze what made them
come or not to come, and to see and maybe have an idea whether or not it would
be feasible next to continue on to have another examination.
M. STOTO: Is that based on existing information or is
it ...
K. FOX: It’s based on existing information only. We are not going out and polling the
members. It’s just on what we’ve seen
what’s happened over time.
M. STOTO: Is that being done in-house or ...
K. FOX: SAIC has been contracted and we’ve been
working — I — we — he’s — Mr. Bill — Dr. Bill Grubbs will be visiting us next —
not next week, but the week after to work some stuff out on that one.
M. STOTO: One thing that you might think about at some
point is that the kind of analysis that you would do for this might also be
useful to help you to adjust for the results for non-response. And if you could predict who comes — who
comes and who didn’t come, there are — there are methods called “propensity
score” methods that actually allow you to say something about whether or not if
the folks who came, who didn’t come actually came, whether they — you would’ve
gotten different results in the end. Now
that’s further down the line, but I think that these — this could — this could
be important for other reasons too is to — I guess the main point I’m saying.
K. FOX: And we’re trying to. I think it’s, again, trying to support what things
can be done in the — in the future with the study.
K. OSEI: How long is that going to be, the
follow-up? How long?
K. FOX: How long for ...
K. OSEI: The six follow-up visits, the physical
examinations.
K. FOX: Together — when the report is due ...
W. GRUBBS: It should be done by February.
K. FOX: I believe we’ll have it by — we’ll get it by
February.
M. STOTO: This is just a statistical analysis of
existing data?
K. FOX: That is correct. That’s all it is.
M. STOTO: All, yeah.
K. FOX: Analyzing what’s happened over the last ...
M. STOTO: Okay.
K. FOX: ... the six cycles. Relational database: it hasn’t been put on contract and with the
IOM’s report — let’s go ahead and go into that.
As Julie mentioned, we’ve had this report for about a week or so and
we’ve looked at it. And we had a
discussion with the technical staff and we think that for the most part, we can
do almost everything that they’ve asked for and all.
Part of it is that the part that
we’re not positive about is when you put the whole code book that the big part,
how they divided it up in the report, they said you need step one to be done,
and then step two to be done, and then maybe you can get step three. Well, we can do — we’re — we think we can do
step one. We can do step two. Step three was a little bit this thought of
this relational database.
What we’re — it hasn’t been put on
contract, but it — what it was was going to be done in a step-wise
fashion. We’re now going to have to go
back and look at this with the intent that I’m not sure that — we’re not really
positive that a step-wise method is appropriate and maybe trying to put more
assets to making it all happen at once.
And so that part is not — we’re not positive. Trying to develop a database that has one,
two — Cycles 1, 2, 3, and 4, 5 and 6 all together and that you can
relationalize it. That ...
M. STOTO: So if I — if I — let me just make sure I
understand. I mean, and you and the IOM
agree that you need to find a way to make these data more accessible?
K. FOX: Yes.
M. STOTO: And that the relational database was your
original idea, and they have — they have a new idea which may be overlapping
with this or may not, and you’re trying to think through how to achieve the
goal?
K. FOX: Yes, and I — and I — so this — the relational
database has not been put on contract yet.
And now with the IOM, we’re going to — we’re going to have to go back
into some discussion to see, but we’re going to ...
M. STOTO: If there’s a — if there’s a different way of
doing the same thing ...
K. FOX: Yes.
M. STOTO: ... essentially?
K. FOX: We think.
M. STOTO: Yeah.
K. FOX: So we need — we probably need to discuss with
IOM a little bit more on if this would have met what they were talking
about. But of all the things, the labs,
we’re already doing. Our plan was we
were doing it already and we’re going to continue on with it. And the parts that they said we were lacking,
we think we’ve got the expertise now who know the history and will put it down
in writing so that it can be used by other people.
M. STOTO: So maybe it would make sense to take this up
again if we have another meeting ...
K. FOX: Yes.
M. STOTO: ... after the ...
K. FOX: Because ...
M. STOTO: ... full IOM report comes out and we can
discuss it.
K. FOX: Yes.
M. STOTO: Yeah.
Okay.
K. FOX: I’m just not ...
M. STOTO: Is that okay with everybody?
K. FOX: I’m not sure where this is going to go yet.
M. STOTO: Yeah.
That’s — so that makes sense to put it off a little bit, not too long,
but ...
K. FOX: Yes.
M. STOTO: ... so people have had time to think it
through.
K. FOX: Publication support: we were looking at these three. The — we did 16 nerve conduction studies on
30 Ranch Hand — well, 60 of the participants and we were just planning to do a
short analysis of those in response to a previous paper that had been written.
“Dioxin and memory” and “dioxin and
hepatic function,” those again were — they’re about to be put on contract. But it does bring to the point where we’re
going to be doing this database whether or not we can get to those at this
time. And I can’t tell you if we can do
everything and all, so those are up for discussion right now. If I hadn’t had the IOM, we would’ve been
telling you that it would’ve been on contract, but the IOM has changed some of
our thoughts.
M. STOTO: Can I ask about these things? Do any of these include contracting with Joel
Michalek to help finish up?
K. FOX: No.
M. STOTO: Is that contemplated separately or ...
K. FOX: Things were contemplated at one time and it
didn’t work out.
M. STOTO: Okay.
K. FOX: But these are our — the nerve velocity
conduction is with Dr. Alberts, who was on the previous paper. And the other two were on papers and they’re
going to follow the same gist of the previous papers and all to try to look at
it with the new data that we have.
In-house research, we have the mortality. We’ll go through 31 December 2003 and all; is
— we should be able to start that shortly with that data. We also have some collaborations with other
researchers out there that we’re working on.
Yes?
D. JOHNSON: Could you go back to the previous slide?
K. FOX: Yeah.
D. JOHNSON: Can you go back a slide? Why did you — these are things — three
different topics you’re going to write papers on? I’m just curious. Did you pick those for a particular
reason? Were there findings? Were there significant findings in those?
K. FOX: It was carrying on from previous reports that
we had done and just to try to add, to complete the topic with the newest, the
latest data that we had.
D. JOHNSON: Okay, so there — if I recall — I don’t recall
hearing any significant findings in these areas, associations here. There was?
K. FOX: I believe there was. And again, it’s not — it’s not from the
report, but from the papers and all. And
so we look at a little bit different, and therefore, there was some suggestions
and that we thought to complete the study.
D. JOHNSON: Okay.
M. STOTO: It’s based on part on things in the — in the
literature from other authors as well then that you think that the Ranch Hand
Study might contribute to?
K. FOX: I’m — I ...
M. STOTO: I mean, is it — is it because someone else
has found something about dioxin and memory and you’re — and there’s an idea
that the Ranch Hand Study might be a way to replicate that and ...
K. FOX: No, it was more from the fact that we had
done a previous paper on it that gave some suggestions to it, and therefore, we
were trying to complete the ...
M. STOTO: So it was ...
K. FOX: And because ...
M. STOTO: ... internally?
K. FOX: Well again, the dioxin, the memory wasn’t
done consistently over the study, so we have a — here’s a time where we redid
it again and we would like to analyze and compare. We have now two points to compare.
M. STOTO: Okay.
K. FOX: Mortality, we’re doing that; and then we have
some collaborations from other that are doing it; and then the viability study
that we’re — we’ve already just — we’ve discussed as some of the things that we’ll
be doing in-house. And then it leads to
Dr. Pavuk talking about the congeners and what we’ve seen with the 106
preliminaries.
M. STOTO: Before you go away, let’s see if there’s any
more comments on this ‘06 activities.
Robert?
R. SILLS: Could you tell us a little bit more about the
collaborations and what are some of the outstanding collaborations? I think in earlier slides, you talked about
you had given colleagues or collaborators deadlines in terms of completing
studies and I ...
K. FOX: To be honest with you, there’s, that I know
of, we only have about two. Well, Dr.
Goff has expressed an interest in collaborating with us and also Dr. Boyle, so
it’s more people coming to us and all.
And I’m not sure with our new time-line people are going to be willing
to be able to work with us on this because we’ve asked for it to be done by the
time we leave, we close the door.
R. SILLS: And then, you know, another point I want to
make is, for example, the nerve velocity conduction studies. When we get that data, when it’s published
or, you know, when we have data from these types of studies, are we including
that in our bottom line in terms of what it means in terms of health effects?
K. FOX: The comprehensive study is what it has in it
and then we will continue to add data.
But it will not be — there won’t be another report trying to summarize
that at the end, no. So the
comprehensive study is what we’ve produced up to now and all. And if there’s anything else published, it
won’t be in that and there’s not a way to make that happen.
R. SILLS: Thank you.
K. FOX: But we’d like to get it published. And if we don’t have enough time to get it in
a peer review journal, we will at least have it done as a technical report so
that it is available to people to look at.
K. OSEI: Do you have a publication coming to you that
decides who your collaborators and potential coauthors would be?
K. FOX: Do ...
K. OSEI: Or do you have a publication coming to you
for an — a — for the study where ...
K. FOX: No, we don’t have any other than what I have
told you about at this time.
M. STOTO: David?
K. FOX: Yes?
D. JOHNSON: It sounds — it sounds as if the Air Force
Study we reviewed today is just — is not a final. It’s a draft that you’re going to be adding
to it?
J. ROBINSON: It is a draft.
D. JOHNSON: And it doesn’t ...
K. FOX: It’s a draft.
D. JOHNSON: And there’s really nothing on this
report. It says a “November 2nd”
report and there’s nothing on it to indicate that it’s a draft.
M. STOTO: It says “November 2nd,” yeah.
K. FOX: Yes.
We’ve noticed that it’s been passed out, yes.
D. JOHNSON: Pardon?
K. FOX: We’ve noticed it’s been passed out. It’s a draft; it is not — no. It’s — that’s — it’s for your — to get your
input.
D. JOHNSON: Because you indicate you’re actually going to
add more information to it as well. No?
K. FOX: No, we won’t.
D. JOHNSON: No?
K. FOX: It’s what’s covered now. It will be that’s all. We will not add in any more so, but we will
take your comments to change it, to modify it to try to reflect your
concerns. And so I’m hoping that in the
next couple of months, it will be published.
D. JOHNSON: Yes, the comprehensive report.
K. FOX: Yes.
M. STOTO: Okay.
Ron?
R. TREWYN: I, at least since 1999, have at least once
during every meeting had to point out the in country, not in country problems
with the comparison group. And I
understood from the last meeting that there are problems cleaning that up and
sorting as to who was in country in the comparison group and who wasn’t. But I think an important — we did talk at the
last meeting about, oh, days of spraying, the time that they were in country,
the period of service and those sorts of things.
When those analyses were done, we
finally got to some significant cancer effects.
Prior to that, there really had been none. We had talked about maybe utilizing that sort
to then go in and look at birth defects, reproductive outcomes, whatever, and
some other parameters. And I didn’t see
anything suggesting that was going to be done, and yet, that may be a way of
sorting and getting, teasing out whether there really are some significant
effects in other areas other than just cancer in this population. Is there any thought to move forward with
those or ...
K. FOX: At this time, no. We’re — it’s not that we’re closed off to any
new suggestions or looking at it, but at this time, no. There wasn’t — we don’t have any other plans
at this time. We are going to — we are
in discussion to try to get the — some of that written up that we briefed last
time. That is one of the things that is
currently still in discussion, but hasn’t been finalized yet.
R. TREWYN: And I guess not being an epidemiologist,
biostatistician or whatnot here, the way the data — as you’re going to be
pulling this stuff together to hold it, I would assume these sorts that gave
rise to days of spraying, and the calendar period of service and whatnot, that
is information that’s there? So if later
on if somebody wanted to go in, they wouldn’t have to start from scratch to be
able to do that?
K. FOX: Yes.
R. TREWYN: That they could pull that out and re-analyze?
K. FOX: Yes.
R. TREWYN: Okay.
P. CAMACHO: When we clean up the databases for the
relational properties, we’re not going to dump fields?
K. FOX: No.
What we — but we’ve got to explain some of the nuances of the fields,
like we know that one person wasn’t there because of this and this. So we need to — that’s the part; to give the
exceptions and so, no, it’s not to eliminate any field. It’s to explain all fields and that makes it
a very difficult task and all.
It would be very easy to just to
eliminate some of them, but no, we have to explain these. What they wanted also was the exceptions to
be explained and all and that’s the time consuming part. And the study sure has changed over the years
and physical — Phase I first physical is not — is going to take a lot of
inventive — creating from scratch on a lot of stuff.
M. STOTO: Okay.
Other questions or comments?

M. STOTO: Well, then maybe we can move to the congeners
then. Dr. Pavuk? Thank you, Karen.
M. PAVUK: So this presentation will address results on
measurements of dioxin, dibenzofuran and polychlorinated biphenyls in a sample
of 106 participants of Air Force Health Study that didn’t have any previous
valid TCDD measurements and before. It
is also here we present for the first time values of those congeners for any
veterans in the Air Force Health Study.
As you all know, in 1987 and then later in the study, only TCDD, one
dioxin — one of many dioxin congeners was measured as recommended by CDC.
Originally, we thought that all
those veterans were comparison veterans, but there were 12 Ranch Hands in this
group of 106 people. As you can see,
some of those comparison veterans didn’t attend any previous physical
examination so that was the reason why didn’t have previous TCDD
measurements. Some didn’t have a valid
measurement; that could have meant that there was a problem with the sample, or
with the analysis or with the quality control.
And there were 12 Ranch Hand veterans that also didn’t have
measurements.
CDC uses high-resolution gas
chromatography, high-resolution mass spectrometry to analyze dioxin-like
compounds. The levels of these compounds
in human samples are reported in picograms per gram of lipid for dioxin,
dibenzofurans and non-ortho substituted polychlorinated biphenyls. Mono-ortho substituted polychlorinated
biphenyls are in so — are in higher levels of — the measurements are presented
in monograms per gram of lipid.
Two measurements of ten, seven
dibenzodioxin congeners — so-called “2,3,7,8 substituted” — that is the
substitution on — in the tetrachloride dibenzodioxin molecule. And so seven dibenzodioxin congeners, ten
dibenzofuran congeners, three or four non-ortho polychlorinated congeners, and
five or six mono-ortho PCB congeners became over the years the standard in
exposure assessment of dioxin-like compounds in humans.
That concept also takes into account
something what we call “toxic equivalency factors;” you can see on the last
line there. And what that means is that
the toxic potency of other congeners, dibenzodioxin and dibenzofurans, have
assigned values relative to the toxic potency of TCDD. TCDD potency is one and all the other
congeners are then related to TCDD having the TEF, toxic equivalency factors,
of one or smaller than one.
Most of the congeners, TCDD being
the most potent congeners, have smaller potencies than TCDD. And basically, you can then calculate what is
called “TEQ,” toxic equivalency, summing up the TEQs of all different congeners
and come up with the total toxic equivalency of dioxin-like compounds in a
given sample.
These are just demographic
characteristics of the veterans. I would
just like to note that this was not a random samples. These are basically veterans, as I said
before, who either didn’t participate or for different reasons didn’t have the
measurements. But the — they are very
similar in the sense of their age, their BMI, not so different on alcohol, pack
years of smoking. As you can see, there
was slightly different distributions given their military occupation. It’s a high proportion of officers in the
small Ranch Hand group.
So this presents the results for
Ranch Hands and for comparisons for dioxin congeners. As you can see, the only congener that was
measured previously, 2,3,7,8-TCDD, and there are six other dioxin
congeners. If you look at the numbers,
you see the ranges and the mean values there are similar in both groups for those
veterans. For those of you familiar with
the background level and populations, these numbers are similar to other levels
found in general population in the United States or other industrialized
countries.
These are the results for
dibenzofurans. Again, the levels are
fairly similar in both groups and we do not see any indication of some other
occupational exposure in these veterans.
These are the level for non-ortho PCBs.
There are many other PCB congeners — PCB congeners being measured or
these congeners are measured here. These
are non-ortho substituted and these are mono-ortho substituted. And those are those congeners that do have
dioxin-like toxicities as based on laboratory animal testing or testing in
vitro.
M. STOTO: You’ve got a — you’ve got a question here.
D. JOHNSON: For the PCDDs, the PCDFs, et cetera,
that you’ve chosen to measure in addition to TCDD, why did you pick those? Are those also all ...
M. PAVUK: Are those ...
D. JOHNSON: Are — those are all contaminants of the herbicides
as well or they’re just ...
M. PAVUK: No.
These are — these are the 2,3,7,8 substituted congeners, dibenzofurans
and dibenzodioxin, that have toxicity similar if you test them in animals as
TCDD. So these are the ones that are
measured in human populations in epidemiologic studies; then you measure
exposure to organochlorine compounds.
D. JOHNSON: So why are we looking — I mean, pardon me for
asking, but why are we looking at that?
What is the purpose of looking at these?
Are they potentially exposed in Vietnam to these as well or not or why
are we comparing those? What is our
interest there?
M. PAVUK: Basically, interest there is that all of us
are exposed to all these compounds throughout our lives. The thinking behind this, and if you remember
some of the critiques of the study — well, of this study — was that only TCDD
congener was measured. What we’re
talking about here is that throughout your life and through some of the
occupations that people may have, you can be exposed to other dioxin congeners
than TCDD. For example, people working
with chlorophenyls or working in different occupations where there’s exposure
to chlorines can have higher levels of some of the dibenzofuran or dibenzodioxin
congeners. And that would be detected if
you measure all of those congeners.
But let me maybe get back to your
question. Originally when people
analyzed Agent Orange and other pesticides that have been used in Vietnam, it
was found that those pesticides were only contaminated by TCDD. That’s why it was decided that only TCDD
should be measured in Air Force Health Study veterans since that was the only
contaminant.
Throughout 1980s and 1990s, it was
found that populations have been exposed to this; that everybody has a
measurable levels of this compounds and that they can be detected many years
after your exposure; and that we can tell from the patterns of the levels of
this compounds to what you could have been exposed many years ago.
So technically speaking, you can
have low TCDD. But if you, for example,
work in a plant that produce chlorophenyls, you would also have increased — you
would also have increased pentachlorophenyls and hexachlorophenyls and we would
see a different pattern of your exposure through those congeners. And we could say that, well, you were a
Vietnam veteran and you were exposed to TCDD in Vietnam, but there is a
suggestion and a pattern of the congeners in your blood; that over your career,
through your profession, you have been exposed to other dioxin congeners.
D. JOHNSON: We are fairly sure that these other ...
RECORDER: Microphone.
D. JOHNSON: So you’re saying we’re fairly sure that these
other congeners are not present in herbicides in Vietnam? So ...
M. PAVUK: Yes, we are.
D. JOHNSON: we’re fairly — pretty certain of that?
M. PAVUK: Yes.
D. JOHNSON: So that if they’re elevated, they would
indicate that the person has some exposures to ...
M. PAVUK: To other things ...
D. JOHNSON: ... other things ...
M. PAVUK: ... than herbicides in Vietnam.
D. JOHNSON: ... in Vietnam, or prior to Vietnam or at any
time?
M. PAVUK: After — at any other time.
D. JOHNSON: Okay.
So ...
M. PAVUK: So basically what we’re looking at here, what
we wanted to — we wanted to test here our assumption basically. That’s what CDC outlined and why original
decision was to measure only TCDD congeners, but that would be the only
difference. We would expect that this
two group of veterans were similar in respect to exposure to all these other
congeners that have toxic properties of dioxins and can cause potentially ...
D. JOHNSON: Similar.
M. PAVUK: ... similar health effects.
D. JOHNSON: Okay, so you just — you just wanted it to
have — also have elevated — these other elevations might not have been due to
the herbicides could be confounding the results of the study.
M. PAVUK: Could be confound results of the study or be
a cause for misclassification of the exposure.
D. JOHNSON: But it’s not to say that if my TCDD is high
and one of these others are high, that doesn’t mean that I was or was not
exposed in Vietnam? We’re not looking at
that; we’re just looking if there’s other confounders that could be causing
illness ...
M. PAVUK: That’s like the other question.
D. JOHNSON: ... other than TCDD.
M. PAVUK: Yeah.
K. FOX: What happened was CDC, when we asked for
dioxin now gave us all this. It’s all on
— all on a battery, so we’re getting more information than what we’ve ever
gotten before. We would’ve — we would’ve
asked for dioxin levels on the people that we didn’t have dioxin levels. And what they’ve given now is that they’re
not only doing the dioxin, but they’re also doing all this.
And so now we have more data that
we’ve never had before because they hadn’t done it before and all. So we’re now just showing you that, hey,
they’ve given us some more data, and now we get to look at it again and let’s
just muddy up some more, but we’re going to look at it to see if we can see if
there’s any kind of anything breaking out.
D. JOHNSON: Well, that’s helpful because you didn’t
actually set out to study this.
K. FOX: Absolutely not. This ...
D. JOHNSON: It’s just you had the data ...
K. FOX: This came ...
D. JOHNSON: ... and now you’re looking at it.
K. FOX: That’s right.
The data was given to us and so we felt obligated to look at it. So we don’t know what this is going to show
and because of it — well, I’ll let you continue and we’ll — he’ll give a punch
line.
M. STOTO: Ron?
R. TREWYN: Well, I mean, I — as I look at, for example,
this slide, I mean, it really looks to me like ...
M. PAVUK: I’m sorry.
I did not ...
R. TREWYN: That slide.
No.
M. PAVUK: This one?
R. TREWYN: Go back.
This one, yes. I mean, it’s okay;
leave it. As I look at this one, I mean,
it really does appear that it’s just TCDD that differs. So in fact, all of these others help confirm
that the lifetime exposure, as least as I would look at those, has been
relatively consistent to the other aspects, the other potential toxins that you
could get with this group. Now two
slides down, you’re going to see some where, in fact, it looks to me like the
Ranch Hand are lower very substantially, which could create certain interesting
questions.
K. FOX: Which is why the punch line is we’re — we’ve
got about 600 more things being — 600 more people being looked at because this
is not — this isn’t randomly selected by any means. And so ...
R. TREWYN: Okay.
Okay.
K. FOX: ... now you’ve got to — now you’ve opened
that up. And so we’re going to go —
they’re looking at some more randomly selected Ranch Hand and comparison so
that it can be looked at.
R. TREWYN: Okay.
K. FOX: Sorry, I ...
K. OSEI: How about the biological activity of these
congeners and these, I mean, in terms of if you took the first potency as one,
what would be the relative potency of the metabolites or are these — are these
metabolites potency?
M. PAVUK: Which one were you asking about?
K. OSEI: All of them.
M. PAVUK: Well, they ...
K. OSEI: Yeah, I know, the metabolites.
M. PAVUK: The ...
K. OSEI: Okay.
M. PAVUK: ... potencies of these congeners differ. For example, penta-TCDDs has the same toxic
equivalency factor as TCDD, 1; the first hexachlorinated is 0.1; all
hexachlorinated is 0.1; heptachlorinated dioxin is 0.01.
K. OSEI: Okay.
Okay.
M. PAVUK: And all the substituted is 0.0001.
K. OSEI: Okay.
M. PAVUK: So the potencies differ widely among the
congeners and the point there is that when you multiply — when you multiply the
measured values with the toxic equivalency factor, then you get your ...
K. OSEI: Overall.
M. PAVUK: ... TEQ level. And you can add up all those potencies
through dioxin, dibenzofurans and PCBs and get a total cumulative exposure to
all these compounds.
K. OSEI: Right.
M. PAVUK: So while here, the difference may be three
times for three TCDD and the overall TEQ in the small sample is not really
different, you know, or not that much.
And, you know, some of that may explain why we don’t see that many differences
in some of those between Ranch and the comparisons because the overall exposure
to dioxin-like compounds may not have been different.
K. OSEI: So you have to rewrite your report?
M. PAVUK: Right.
R. TREWYN: Start over.
M. PAVUK: Start over.
Well, in ...
D. JOHNSON: And you — and the — and ...
M. PAVUK: ... effect since we already jumped ahead —
since we already jumped ahead, I can also jump ahead here. And this is the preliminary results on 300
and 300; I thought you would be interested.
We’re still finishing the data set with the CDC and still kind of
recalculating the TEQs, and non-detectables and other things that you need to
do in data set before you can start analyzing anything.
But this is on 300 and 300, and this
provides a little better picture and illustrates the point a little bit better
in the — between TCDD and total TEQ. See
the difference here? This is 3.2 and
10.2, difference about seven parts per trillion: this 37, 38 and 42.5. So the difference is about five in there, so
it’s close to that difference in the TCDD.
So you can say here that, yes, the exposures overall were similar, but
the difference is really caused by the exposure that they were — they
experienced in Vietnam because the only difference we see is only in TCDD and
in none of the other congeners.
D. JOHNSON: The TEQ includes ...
M. PAVUK: So it gives you more information to confirm
your assumptions; that their exposure, the difference in the exposure was in
TCDD that may have been in Vietnam.
M. STOTO: I can ...
D. JOHNSON: Just to be completely clear that TE — the
TCDD is included in the TEQ?
M. PAVUK: Correct.
Yes. Here, maybe I should note, I
mean, this should not really be here because this one is part of this one. I was asked to show this one, but really TCDD
is part of this column. But only this
column here add up.
K. OSEI: Use a pointer.
M. STOTO: I’m going to ask about the relevance of this
given all the other things that could be done with the amount of time that’s
left and so on. I mean, you know, the
Ranch Hand Study started out comparing people who were exposed to herbicides to
controls.
M. PAVUK: Well, I thought that ...
M. STOTO: Let me finish, please.
M. PAVUK: Sorry.
Sorry, I thought you were finished.
M. STOTO: And, you know, 20 years ago, CDC figured out
how to measure serum dioxin and then that turned out to be a good — a better
measure of exposure than just being in the cohort was and so we kind of have
been focusing on that. And then over
time, there’s been more and more of a shift toward thinking this was a study
about the effects of dioxin, which was a big shift.
And now this is kind of saying, “Oh
no, we’re — this is a study about the congeners of dioxin.” And I guess I’m not, I mean, to the — to the
extent that this tells us yes, it does look like that the difference between
the TCDD levels between the Ranch Hands and the controls is due to their
exposure to Agent — to herbicides, that’s nice to know. But I guess I can’t — I don’t understand why
it would make sense to put a lot more effort into this beyond this. Ron?
R. TREWYN: Can I follow up with one other thing because
then I’m going to go back to my other point?
Because when one looks at things like days of spraying, calendar period
served, there were — there were cancer health effects teased out. Might it be possible other health effects
could be teased out by doing those analyses with other parameters? And yet, we’re focused on what are probably
fairly expensive studies.
I don’t know what the cost is, but I — any time you’re going to do a laboratory analysis versus crunching numbers, just re-analyzing data sorted somewhat differently, I would think the cost would be — would be substantially higher. So I guess going back again to my social science colleague over here and the fact that, you know, the issues are were there adverse health outcomes due to some of these exposures? If there’s an opportunity to pull out potentially more health parameters or not versus interesting stuff, I mean, this is — this poses some interesting scientific questions, but I don’t know that it gets to the bottom line as much as some of the other things could.
M. PAVUK: Well, if I may address some of your points,
if you would have asked Dr. Schechter about this, whether this would be
important to pursue, you would probably got a slightly different answer. This was one of the ...
M. STOTO: He’s been saying this for years that we —
that we should do this, yeah. True.
M. PAVUK: And I agree.
I am not trying to make a joke here about this because from the point of
view that if you measure only TCDD in these veterans, your exposure assessment
to organochlorine compounds is incomplete.
It has been one of the — I was — I’m a little surprised by the reaction
of the Committee because I thought that was one of the major criticism of the
study; that the exposure assessment was incomplete here and that, you know,
this technology has been available since about ‘85, ‘87. In ‘87, they could have measured all the
congeners too, you know, and ...
M. STOTO: This has — this has been Dr. Schechter’s
criticism for ...
M. PAVUK: Well, it’s not only Dr. Schechter’s. I mean, many other study that is compared to
Air Force Health Study is the OSHA study of chemical workers that have been
exposed. And, you know, they did some
analysis of sub-samples of the — of the — of the workers there and ...
M. STOTO: I mean, I guess I don’t — I don’t find this
convincing that this should be a high priority thing given the amount of time
and money that’s left. I mean, I’m open
to hearing ...
R. TREWYN: I’ll take — I’ll just take the other side
just for the heck of it just to show I can argue both sides. I do think there is some interesting data
coming out of this. And if the bottom
line is and some stuff where there really have been questions for a number of
years on what would this show and whatnot, so I think that is valuable.
If it turns out that the
recommendation of the IOM is continuation and even a bigger if, if then that’s
approved, blessed, whatever and by Congress or whoever’s going to move this
forward so additional studies will be done, I think then having some of this
analytical data perhaps may make it more attractive for even more researchers
to want to pursue it. So who knows?
K. OSEI: And Mike, I think this is also very important
because you — the assumption has always been that TCDD was the primary culprit
and that it may not be. It may be that
there are other congeners that are even more toxic, so now you’re looking at
the total exposure burden in the — that individual rather than one entity.
And so having this kind of
information gives you an idea where to focus your energy. If you didn’t have this, you would be, you
know — just focus on one thing and it may be a mistake. I think this gives you some insight into what
the culprit is. And it’s good to exclude
that and say this is not what the issue is so we can spend our money on
something else.
M. PAVUK: I mean, our problem really — probably more
important problem than the congeners was the fact that the samples are
collected so many years after exposure in Vietnam. So when this is also then many years after
exposure in Vietnam so, but ...
K. OSEI: Is one more stable than the other?
M. PAVUK: Pardon me?
K. OSEI: Is one of these congeners more stable than
the other? If you say five, years, ten
years, 20 years, would one ...
M. PAVUK: Well, some ...
K. OSEI: ... decay faster?
M. PAVUK: Some of them — some of them decay faster than
the others; that’s true that their half lives do vary. Some are shorter than dioxin, which is about
seven, eight years; some are quite longer.
R. TREWYN: And these specimens were collected when?
M. PAVUK: 2002.
R. TREWYN: Then so all of these — the 300, now the 600
...
M. PAVUK: Right.
R. TREWYN: ... these are all 2002?
M. PAVUK: This is all 2002.
R. TREWYN: Okay.
M. STOTO: Now go back to the, you know, page 1 of the
comprehensive report. The purpose of the
study: “The objective of the Air Force
Health Study was to determine whether the long-term health effects exist and
can be attributed to occupational exposure to herbicides with specific emphasis
on Agent Orange.” This may be an
interesting scientific question, but it’s a very different scientific question.
M. PAVUK: It is, but at the same time, you know, the —
I think the — how this adds to those questionnaires, that you may have people
who have low TCDD, and have been classified as having being in a low TCDD
category ...
M. STOTO: I under — I understand that point.
M. PAVUK: ... and they may be in high TEQ
category. So that introduce, you know,
the problem that you can then address from the other perspective.
M. STOTO: Well, but it — but ...
M. PAVUK: And we have that problem because we have 40
percent of Ranch Hands that have TCDD levels same as comparisons, you
know. And we can’t deny them that ...
M. STOTO: Okay.
M. PAVUK: ... they were in Vietnam and that they were
exposed probably more than comparisons.
M. STOTO: I understand that point.
M. PAVUK: Sure.
M. STOTO: And I’m saying that but to do the — to redo
all the analysis using this kind of information, plus get it on a couple
thousand more people ...
R. TREWYN: Six hundred.
M. STOTO: Well, it’s not just the — it’s the Ranch
Hands, and the controls and so on. And so I don’t know; it’s a lot of — a lot of
effort to get ...
M. PAVUK: Right, I ...
M. STOTO: ... to get these things.
M. PAVUK: I agree.
M. STOTO: And a lot of money.
M. PAVUK: I agree.
M. STOTO: And that may be an important question, but
there’s lots of other questions that could be asked. And I have to say I personally don’t feel
that given the amount of time and the amount of money that’s left in the
current project, which is the one that we’re advising about, that this is a
good investment.
R. SILLS: And that’s my concern too. I think we need to have the most consistent
data set, which is what we have right now.
And we need — and we’re drawing conclusions and so we need to be
careful. I think this information is
important. It’s important, which will —
it’s information which will add to the exposures.
But in terms of making correlations
or making sense of the data we have right now, we really need to go with our
solid data and use that data to help explain the effects that we see in the study. And the study ends in September 2006 and I’m
very worried that if we’re, you know, if we — if we don’t have consistent data
that we know about is solid, then we could run into, you know, I mean, we, you
know, it could — it could cause — it could bring up some issues. And I would prefer to go with consistency
over not being consistent.
And because once you get the data
set, then you have to analyze it. You
have to do all — you have to do — you have to do — you have to have — make sure
your controls and everything is — you really have to have confidence in the
data. I support this data 100
percent. This is the data I, you know,
in terms of future studies, I see — I see, you know, there’s a lot of strength
for this. But as I — as I ...
M. PAVUK: It’s a little — too little, too late.
R. SILLS: Right, it’s a little too — well, all I’m
saying is that we really have to have confidence in the data. And in order to have confidence, you have to
look at the data. You have to analyze
it. You have to do a number of internal
studies or — there have to be a lot of discussion back and forth.
And so I like the idea that Mike is
proposing that, you know, we go with the most consistent data, which is the
data we have right now that we have in our hands. And we have analyzed it; we have discussed
it. And these type of studies, I think,
would be studies for the future. I mean,
I think, you know, I’ve been sitting here and I’ve been — I’ve been worried
about it.
M. PAVUK: Well, I agree with you that, you know, at
this point, we are — we’ll have data on 600 veterans and we are not going to
have the results for the rest of the study, so our analysis ...
M. STOTO: Okay.
M. PAVUK: ... of health outcome is limited.
D. JOHNSON: Can I ask a question?
M. PAVUK: So we’re not going to pursue this.
M. STOTO: Marian, this is the Advisory Committee and
we’re giving advice to you. So I’d like
you to answer our questions, but not argue back against them. Sandy, go ahead.
S. LEFFINGWELL: Another illustration, I guess, of this
axiom: “If you don’t know what you’re
going to do with the answer, don’t ask the question.” But you didn’t ask the question; you just got
the answer, which raises another question.
The extra — presumed extra cost of doing these analysis comes out of
whose pockets? Is this now done because
that’s the standard way CDC does it and they can’t give you a cut rate if they
analyzed for less?
M. PAVUK: Pardon me?
What was the question?
S. LEFFINGWELL: Well, the analogy is to a hospital laboratory.
M. PAVUK: Yes.
S. LEFFINGWELL: You don’t any more order a blood urea
nitrogen. You order a SMA-20 or
something because it’s more expensive to do a bench analysis for a single
analyte. I’m wondering whose pocket
these extra analyses came out of? Did
the Air Force have to pay for it or was this just CDC’s flat rate and way of
doing things and ...
M. PAVUK: I think Dr. Miner can answer that question.
J. MINER: Flat rate.
D. JOHNSON: I have ...
J. MINER: What — it was their way of doing things and
there was no price reduction for doing less.
It’s just that was the panel — boom.
M. STOTO: Okay.
David?
J. MINER: And it comes out of our pocket.
D. JOHNSON: I have three questions, but then I don’t mean
to argue. Well first of all, I wanted to
say that’s one of my original questions.
I didn’t mean to jump ahead of you, but I was trying to figure out why
you were doing it and so — and it — and it was interesting to find that out. But is it — is — are we assuming that the
toxicology is the same in all these congeners?
They all cause the same — do we have laboratory studies to show that
they actually cause the same illnesses?
I know that ...
M. PAVUK: There’ve been quite a bit of studies, but I
wouldn’t classify it as a — as a uniform outcome for every congeners.
D. JOHNSON: I mean ...
M. PAVUK: There have been — different congeners may
have different ...
D. JOHNSON: Outcomes.
M. PAVUK: ... outcomes.
M. STOTO: And they’re based on animal studies, I
believe. Is that correct?
M. PAVUK: Yes.
The testing, yes.
D. JOHNSON: The other thing I’m assuming then, you read
the study — this is my second question — that the study reads that this is a
study of exposure to herbicides. So
we’re assuming that, because we’ve been talking about dioxin in here, we’re
saying that dioxin then is a surrogate for herbicides? Is that what we’re assuming?
M. STOTO: Yeah.
D. JOHNSON: I guess we’ve kind of brought this up before.
M. STOTO: No, we have and that has problems, I mean,
because some of the herbicides don’t have — didn’t have dioxin. And I forget which ones, but some of them
didn’t. So I think that’s part of the
reason.
D. JOHNSON: But that’s — but that’s what we’re doing
then, I mean?
M. STOTO: Yeah, that’s part of the reason why we, I
think, Model 1 has always been carried along, which is the one that just
compares the Ranch Hand the controls.
D. JOHNSON: It has limitations, but that’s what we’re —
that’s why this study reads this way and you can ...
M. STOTO: Well, the study, you know, this is what was
authorized at 25 years ago.
D. JOHNSON: Right.
M. STOTO: Jay?
J. MINER: Yes. I
would like to, again, I do this almost every time, but I’ll ...
D. JOHNSON: Right, I know. I know.
J. MINER: ... read from the protocol, page 1, “Purpose
of the Investigation: The purpose of
this epidemiologic investigation is to determine whether long-term health
effects exist and can be attributed to occupational exposure to Herbicide
Orange.”
D. JOHNSON: Right.
M. STOTO: That’s essentially what it says here in the
comprehensive report.
D. JOHNSON: Right, but I’m trying to remember now. I know we’ve asked this before. I was trying to put it back to what he was
saying about this is a study — why are we looking at congeners ...
M. PAVUK: Because ...
D. JOHNSON: ... because we were looking at herbicides.
M. PAVUK: Right.
D. JOHNSON: But we’re — we’ve really been talking about
dioxin the whole time. So I guess my
final question is, is there a chance by studying this it would show more of an
effect on behalf of the people exposed?
Because if there is, then we have to be careful about not doing it now
that we started on it.
M. PAVUK: This, as I mentioned before, this gives you a
more detailed assessment of personal exposure in a sense that we are all
exposed to this compounds. And it’s true
that the herbicides had only — the only contaminant was TCDD there, but all
human beings, whether comparisons or Ranch Hands, whether living in United
States or being in Southeast Asia, have been over the course of their life
exposed to all the other compounds. So
that’s the idea behind the exposure assessment and analyzing so many different
compounds.
D. JOHNSON: So the analysis is more likely to show less
of an effect?
M. STOTO: Yes, because somebody with diabetes, it might
turn out that he has a higher level of something or other and it can only take
away from that, the fact that it’s there.
Jay, one more — one more point?
J. MINER: One more comment: as far as the use of the money to do any more
of these, Program Management has been talking about that. And since the IOM report has come out, this
has moved further down on our — in our priorities.
M. STOTO: Yeah.
I mean, from what I have understood now is that, you know, we, as I said
at the outset, it started out to be a study of herbicides. Dioxin was thought to be a good proxy for
herbicides, a good biomarker for herbicide exposure.
J. MINER: Herbicide Orange.
M. STOTO: And then CDC decided that it’s going to just
give the whole panel of results rather than just the TCDD results and we kind
of got it. We kind of got this data and
now we’re thinking about what to do with it.
And that’s not a, to my mind, a good sound scientific reason for
focusing on these — on these data.
J. MINER: Well, as I remember though from years past,
and it might’ve been a little before your time, this Committee did heavily
criticize us for only looking at TCDD and recommended that we would look at the
congeners.
M. STOTO: I know that people — I do recall people
saying that.
J. MINER: Yes.
M. STOTO: I was not one of them.
J. MINER: No, you were not.
M. STOTO: Okay.
Ron?
M. BLANCAS: And if I might add, this probably would’ve
been already completed a couple of years ago except that we had problems
getting money to CDC to accept the particular money that we had. They didn’t like the color of money, so it
wasn’t done. So that’s why we’re
completing it now.
M. STOTO: Ron, turn your ...
R. TREWYN: Well, I — yeah, and I will wrap up because it
does — because something was dictated 25 years ago, we’re going to do it same
way since confirms in my mind that that is bad science. The issue here is, I guess, it can be then
blamed on Congress. But this is, you
know, you go where the — where the science leads you and this is — yeah.
M. STOTO: Well, okay.
I think what I’d like, I just want to wrap this up. I think that we don’t need to make a — I’m
sorry. I do — I do want to wrap this up
now unless there’s — and I don’t think we need to make a recommendation
here. I think — I think that the point
that Jay made about the IOM’s going to make a lot of recommendations about all
this and I think this needs to be reconsidered in light of all those is a good
one. So, you know, I think we should
just stop for now. Okay. Thank you.
Okay.
![Text Box: Review of the Air Force Health Study Comprehensive Study Report [continued]](2005-4196t1_files/image015.gif)
M. STOTO: We have remaining on the — on the agenda
Committee discussion. This is the stuff
that’s for 3:30. I would like to do a
couple things: one is come back to the
conclusions of the comprehensive report and talk about that now a little bit
more, and two, I raised the idea about whether we want to endorse the IOM
report.
But I think that probably that it’s
not going to make much of a difference one way or the other and we’re going to
have a — I think have an opportunity to talk about it in more depth at our next
meeting. So I think I’ll — unless
someone really wants to push that, I’ll — I think we’ll drop that for now. And I’m sorry?
D. JOHNSON: It’s kind of one of the reasons we had a separate
group look at — they chose for a separate ...
M. STOTO: Yeah.
D. JOHNSON: ... group to look at it, so we can let —
yeah.
M. STOTO: Okay, and then — and then we need to think
about setting a date for a new meeting, for the next meeting. So on the — on the comprehensive report, one
thing that struck me is about the need to balance honestly reporting everything
that was done and not leaving things out, which Paul rightly tells us would be
— could be trouble, versus focusing attention on what’s important and telling a
good story.
And that’s a hard compromise and I
think a lot of what we were discussing, you know, had to do with how do we come
down on that and, you know, I — and I don’t want to pretend that that’s
easy. But I would propose, just to put
on the table this idea that one way to do that is to bring the VA list of
presumed diseases that are — that are related to herbicide exposure and Agent
Orange up to the front of the report.
And say that, you know, there’s been a lot of work in this in the
scientific community in general, in the IOM’s reviews, and in the Ranch Hand
Study and use that as a framework for presenting the results.
And then you could say, you know,
some of the things the Ranch Hand Study is consistent with the VA findings and,
in fact, are the leader or the main — like diabetes — are the main thing that’s
led to that finding. In some cases, the
Ranch Hand Study is not really able to address the issue because the sample
size is small, or because it’s chloracne that happened long before the study or
something like that.
And then in other cases, that there
were these other things that the Ranch Hand looked at that aren’t on the list
that the VA has and that we didn’t find anything either on those lists. So kind of frame it that way and then, you
know, describe the study and all that that’s there. And then go through each of the outcomes and
describe, you know, what was done and what was — what was — what was found,
more or less like it’s there.
But have the — have the conclusions
of each chapter come back to that framework so that, you know, the endocrine
chapter will talk about diabetes and the cancer chapter will talk about how it
could — it did find some things in prostate, but couldn’t find anything for
soft tissue sarcoma because the sample size was small and so on. And then the overall conclusion would
basically just sort of pull, wrap together those — the conclusions of each of
those individual chapters.
And I think that way we, you know,
that the — each chapter does have what was done, and what was found and what
not found, but it puts it in the context of this bigger framework.
R. TREWYN: And that would include then publications done
by the Ranch Hand team?
M. STOTO: Absolutely.
R. TREWYN: Okay, and not just — yeah.
M. STOTO: Yeah.
R. TREWYN: Yeah.
K. OSEI: Mike, and another way to look at it is, you
know, as you pointed out, there should be a whole section on limitations with
the study, I think, so that we don’t have to revisit everything. So the limitation — and we put only one
paragraph in here, but you should really write the whole issues so that you can
put the whole thing in a better context than what we are trying, you know, what
we’re talking about. So you lay out what
are the limitations of the study so that we can now have a better view of what
the study can do and what it’s expected to do, not what it cannot do.
M. STOTO: Okay.
Yeah. David?
D. JOHNSON: Yes, I mean, I want to bring this up. But this discussion has come up, I guess,
almost every meeting as indicated back there about is it herbicides or is it
dioxin that we’re studying? And you’ve
sort of — the last few comments you’ve made, you’ve talked about it being
herbicide exposure.
But if you look in the — if you look
in this text, repeatedly it talks about increasing dioxin or decreasing dioxin
and it talks about the associations with dioxin throughout this report. Now it seems like I don’t know if there’s a
place where that’s — if this is explained in a — in a paragraph, an introductory
paragraph that explains why we talk about dioxin. But what we’re really doing ...
M. STOTO: Yeah.
I think it may be in there, but it probably needs to be in Chapter
2. I think it may be needs to be
clarified, strengthened.
D. JOHNSON: It’s not just one chapter though. It’s the entire report ...
M. STOTO: Well, chapter ...
D. JOHNSON: ... refers to dioxin, whereas ...
M. STOTO: Well, Chapter 2 is “Measures of Exposure.”
D. JOHNSON: Oh, okay.
M. STOTO: So that — I think that ...
D. JOHNSON: Do you think it explains the fact that the
original study was for herbicides, but yet, this report refers almost entirely
to dioxins and why that occurs?
M. STOTO: Not as well as it might.
D. JOHNSON: Pardon?
M. STOTO: Not as well as it might. I mean, I think it can be — no, I think this
is the place where it belongs. I’m not
saying that it’s done well now. I agree
with you that it needs to be strengthened.
D. JOHNSON: It’s a fairly broad and important point.
M. STOTO: Yeah.
D. JOHNSON: To be clear or at least ...
M. STOTO: It’s a fundamental point.
D. JOHNSON: ... as clear as possible or at least
attempted to be explained.
M. STOTO: Yeah.
It’s a fundamental point.
K. OSEI: But another way to look at it is we say
dioxin is a surrogate. We use that as a
surrogate of — no, so that — so people don’t get the idea that what you’re
looking at is just dioxin association and diseases, but as a surrogate of, you
know ...
J. ROBINSON: Agent Orange.
K. OSEI: ... Agent Orange, yeah.
D. JOHNSON: And, you know, and when you spend the time in
here discussing this with this group, you start thinking you’re talking about
dioxin because that’s what we talk about all, you know, for hours. And you’re not thinking that we’re — that
we’re really thinking in terms of herbicides in general and I don’t know if
that’s made — so it’s not always that clear when we’re talking about it. I don’t know if it’s made clear in the
document and it seems to be an important point.
M. STOTO: Well, some of the findings are stated in
terms of the Ranch Hands versus the controls, which is — gets us back to the
original purpose. So, but I think that
your fundamental point is right; is that this really needs to be clarified.
P. CAMACHO: You’re back to the history again and dioxin is what captured the imagination of all the stakeholders. Had this exotic ch