DEPARTMENT OF HEALTH AND HUMAN
SERVICES
and
FOOD AND DRUG ADMINISTRATION
NATIONAL CENTER FOR TOXICOLOGICAL
RESEARCH
convene the
Ranch Hand
Advisory Committee Meeting
Rockville, Maryland
November 19, 2004
Certified
Verbatim Transcript
TABLE OF CONTENTS
Page
Opening Session..........................................................................................................................
1
Approval
of Previous Meeting Minutes................................................................................. 4
Update on the Air Force Health Study
Disposition Study......................................................... 7
RHAC Business.......................................................................................................................... 17
Review of Chapter 18: Endocrine............................................................................................ 18
Review of Chapter 20: Pulmonary............................................................................................ 23
Review of Chapter 11: Neurology............................................................................................. 29
Review of Chapter 13: Gastrointestinal................................................................................... 32
Review of Chapter 14: Dermatology........................................................................................ 39
Review of Chapter 10: Neoplasia............................................................................................ 49
Public Comment Period............................................................................................................. 71
Review of Chapter 21: Conclusions......................................................................................... 85
Review of the Executive Summary.......................................................................................... 119
RHAC Business [continued].................................................................................................... 149
Closing Session........................................................................................................................ 154
LIST OF PARTICIPANTS
RHAC Members
Dr. Michael Stoto, Chair
Dr. Paul Camacho
Dr. Ezdihar Hassoun
Dr. David Johnson
Dr. Ronald Trewyn
FDA/NCTR Representatives
Dr. Leonard Schechtman
RHAC Executive Secretary
Ms. Kimberly Campbell
Management Specialist
U.S. Air Force Representatives
Dr. Joel Michalek
2nd Lt. Margaret
Montgomery
Lt. Col. Julie Robinson
U.S. Air Force Contractors
Mr. Manuel Blancas
UDTech
Dr. William Grubbs
Science Applications International
Corporation
Dr. Judson Miner
Operational Technologies Corporation
Mr. Maurice Owens
Science Applications International
Corporation
Ms. Meagan Yeager
Science Applications International
Corporation
Guests
Dr. David Butler
National Academy of Sciences
Dr. Gary Kayajanian
Public
Ms. Jaclyn Petrello
Exponent
Dr. Robert Sills
National Institute of Environmental Health Sciences
Mr. Rick Weidman
Vietnam Veterans of America
DEPARTMENT OF HEALTH AND HUMAN
SERVICES
FOOD AND DRUG ADMINISTRATION
NATIONAL CENTER FOR TOXICOLOGICAL
RESEARCH
Ranch Hand
Advisory Committee Meeting
November 19, 2004
Rockville, Maryland
Certified Verbatim Transcript
[CONVENE 8:08 A.M.]
M.
STOTO: Are you ready? Well, let’s get started, everyone. I’d like to welcome everyone; thank everyone for coming. I guess the first order of business is
introduction of the Committee members.
So what I’d like to do is just go around the table, have the Committee
members introduce themselves and then go around the room so we know who else is
here. I’m Mike Stoto from the Rand
Corporation and Harvard School of Public Health and I am the Chair of the
Committee. Robert, do you want to ...
R.
SILLS: I’m Robert Sills. I’m the head of molecular pathology at
NIEHS.
D.
JOHNSON: I’m Dave Johnson, the
Executive Medical Director for the Division of Environmental Health, Florida
Department of Health.
P.
CAMACHO: Paul Camacho from the
University of Massachusetts in Boston.
E.
HASSOUN: Ezdihar Hassoun, Associate
Professor of Toxicology, the University of Toledo, College of Pharmacy.
R.
TREWYN: Ron Trewyn, Vice Provost
Research, Dean of the Graduate School of Kansas State University.
J.
ROBINSON: I’m Julie Robinson. I’m the Branch Chief for the Air Force
Health Study at Brooks City-Base.
J.
MICHALEK: Joel Michalek, Principal
Investigator of the Air Force Health Study, Brooks City-Base.
L.
SCHECHTMAN: I’m Leonard
Schechtman. I’m the Executive Secretary
of the Ranch Hands Advisory Committee and the Deputy Director for Washington
Operations at the National Center for Toxicological Research at FDA.
D.
BUTLER: David Butler. I’m a Project Officer with the National
Academy of Sciences, Institute of Medicine.
I’m Study Director for the AFHS Disposition Study.
G.
KAYAJANIAN: I’m Gary Kayajanian and
I’m an individual scientist. I evaluate
human cancer data. I’ve done this for
dioxin and arsenic and have found that high doses of dioxin — not too high —
are actually beneficial with respect to cancer, significantly reducing cancer
levels.
K.
CAMPBELL: I’m Kim Campbell. I’m the Management Specialist, FDA.
M.
OWENS: Maurice Owens with
SAIC. I’m the Program Manager of our
Air Force Health Study support contract.
J.
MINER: I’m Jay Miner. I work for Operational Technologies, a
support contractor for Program Management for the Air Force Health Study at
Brooks City-Base.
M.
MONTGOMERY: Lieutenant Margaret
Montgomery. I work as the Deputy
Program Manager at Brooks City-Base.
M.
BLANCAS: Manny Blancas, Operational
Technologies also. I work alongside Dr.
Miner at Brooks City-Base.
M.
YEAGER: My name’s Meagan
Yeager. I am an employee of SAIC and I
work on the Air Force Health Study.
W.
GRUBBS: Bill Grubbs, SAIC. I work on the Air Force Health Study in
support of the report.
M.
STOTO: Okay. Thank you, everyone and again, welcome. Len, do you have any household —
housekeeping items that — excuse me.
L.
SCHECHTMAN: Household as well,
yes. Just one; that we’ll have our
usual working lunch around the noon hour.
Should the day extend, the food will remain so that we can munch and
continue to work. I also have the
conflict of interest statement that I’ll read for everyone to hear for the
record. 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 special government employees
have been screened for the — 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: Dr. Kayajanian has asked to
speak during the comment period which we’ll certainly allow him to do.
G.
KAYAJANIAN: I’ve secured a patent
for the use of dioxin at modest levels as a cancer prevention agent based on
not only the study data from the Ranch Hand Study, but from other human and
animal studies.
M.
STOTO: Thank you. Okay.
So the agenda today is mainly to go through the chapters. We’ve done this in a couple of passes before
and this is the remaining set of chapters.
They’ve all been assigned to one reviewer with the exception of the last
two — the conclusions and the executive summary where we were all asked to take
a look at those — and then we’ll have a break for comments around mid-morning.
Approval of Previous Meeting Minutes
M.
STOTO: And so the next item now is
approval of the minutes. I think in
your — in your folders is a version of the minutes. I have already been through it myself and have requested some
changes. What I didn’t do in my review
was to look at the detailed comments on the — on the chapters; those are the
ones I reviewed myself. And so I’d like
to ask those of you who did that if they have any comments on that, and of
course, on the minutes as a whole as well?
Joel?
J.
MICHALEK: May I have a copy of the
minutes? Do you have them with you?
M.
STOTO: Oh yeah. Okay.
I’ve got — I’ve got two right here, so ...
D.
JOHNSON: I’m sorry. You asked for comments on the minutes and
what else?
M.
STOTO: The minutes, just especially
if you were in charge of reviewing a particular chapter. I think it’s important that Joel and others
from the — from the study have a chance to review the minutes for technical
content. I mean, obviously, they’re our
— they’re our meetings. It’s our
responsibility for the minutes, but I would find that my — I could discharge
that responsibility better if I asked that.
In fact, it even says in the minutes that we — that we — that we should
do that. So I don’t know what we can do
in the future to make sure; maybe that the Air Force people get the minutes at
the same time they’re sent to me? Oh,
you did?
L.
SCHECHTMAN: Yes.
M.
STOTO: Okay. So then — so then if you have any comments,
you’re welcome to make them too.
J.
ROBINSON: We do review them and
have submitted our comments.
M.
STOTO: Okay. So they — but the comments probably should
come back to me so I know that the changes really are technical and appropriate
rather than ...
J.
ROBINSON: Okay.
M.
STOTO: Yeah.
J.
ROBINSON: No problem.
M.
STOTO: Not that I suspect you of
anything, but just — but in terms of our responsibility. Okay.
Were there any other comments that people wanted to make? Okay.
Would someone like to move that we approve the minutes?
R.
TREWYN: So moved.
M.
STOTO: Dr. Trewyn. Second?
D.
JOHNSON: Second.
M.
STOTO: Okay. Thank you, Dr. Johnson. All in favor?
RHAC
MEMBERS: Aye.
M.
STOTO: All opposed? Abstentions? Thank you. It carries
unanimously. Again, I want to — I want
to thank our scribe for doing a nice job with this. This new system is working out very well. Okay.
We’re — it’s our pleasure this morning to have Dr. David Butler from the
National Academy of Sciences, Institute of Medicine to be here. He is going to staff the study that was
mandated by — I don’t know; I forget the name of the law — last year and that
we have been talking about in the last couple of meetings about the disposition
of the Air Force Health Study.
D.
BUTLER: Just taking a moment here
to get all set up and to review just what we’re going to be taking a look
during the course of this study. Very
briefly, this study comes out of a Congressional mandate that was contained in
the Veterans Benefits Act of 2003 which was signed in December of last
year. That law mandated several
elements for the National Academies to address and I want to go through these.
I’m
not a big fan of reading slides, but in this case, I want to make an exception
because the material that’s here is going to be the motivating and guiding
factors for the National Academies’ study.
It’s important that we try to answer all of these questions to the best
of our ability. And since we’re going
to be looking for input throughout our study process, I want to make sure
everyone understands just what it is that we’re going to be doing.
First,
the scientific merit of retaining and maintaining the medical records, other
study data and laboratory specimens collected in the course of the AFHS. Second, whether any obstacles exist to
retaining and maintaining those materials, data and laboratory specimens,
including privacy concerns, obstacles both logistical and ethical. Third, the advisability of providing
independent oversight of the medical records, and other materials, and of any
further study of such records, data and specimens.
By
“further study,” we understand this to mean either in the course of an
investigation of the health of the veterans, the impacts of herbicide exposure
during the war, or more generally, of health questions that might be addressed
by the data and specimens. And if such
studies are to take place, the mechanism for providing such oversight. Fourth, the advisability of extending the
study itself, the potential value of doing that and the potential cost. And if the study is to be extended, the committee’s
input on which federal or non-federal entity is best suited to continue the
study.
Finally,
the advisability of making the laboratory specimens collected available for
independent research, including the value and relevance of such research and
the potential cost of such research. To
that end, we are putting together a study.
We have now signed a contract with the Department of Veterans Affairs to
conduct the work. I am in the process
of putting together that committee.
Very briefly, that process consists of my soliciting input from a number
of different individuals, and sources on potential committee members and
potential areas of expertise the committee should cover.
We
are soliciting committee members in the following areas: those with expertise in environmental
medicine issues and issues relevant to the health of Vietnam veterans;
individuals who are familiar with the conduct of longitudinal epidemiologic
studies and decision-making that goes into maintaining the records and biologic
samples; individuals with expertise in the long-term maintenance and analysis
of biologic specimens; biostatisticians who will — can give us input on issues
related to sample size and future potential of these data to yield informative
studies of veterans health or of aging and military populations; and finally
and very importantly, bioethics because issues of informed consent are very
important to the future study of these materials.
We
are seeking input in two primary areas at the moment. First, are materials for the committee’s consideration. All National Academy of Sciences studies are
science-based. The panel of experts
we’ve put together can’t just kibitz what they think we ought to be doing. Any recommendations and conclusions they
generate must be founded in the science.
To that end, we are seeking materials for the committee’s consideration
on those issues.
The
other thing are — is suggested topics and speakers for our spring 2005
workshop. We intend on putting on a
workshop in March or April of this year in Washington, DC where we will gather
additional information for the committee’s consideration. And what we’re looking for are people that
can come and provide some perspectives to our committee for their
consideration. The National Academies
has very strict requirements for perception of conflict of interest with our committee
members for any study.
One
of those restrictions prevents us, for example, from soliciting individuals who
work for government agencies on this particular project since our sponsor,
Department of Veterans Affairs, is a governmental agency. However, we’re aware of the fact that there
are several very knowledgeable individuals in the federal government who might
be able to provide us with some good input on this study. And I encourage everyone here today to get
back to me on any recommendations they might have for either individuals, or
institutions or areas of expertise that we should be soliciting in this
workshop. Information on this study is
not yet ...
M.
STOTO: David, that workshop will be
open to the public too so people can ...
D.
BUTLER: That’s correct; this is a
workshop that will be open to the public.
We will make public announcement of it.
I will make sure that Mike, that Dr. Schechtman is — are informed about
the study so we can get good participation in it.
M.
STOTO: And we’ll make sure that
word gets around to the Committee about that?
L.
SCHECHTMAN: Absolutely.
D.
BUTLER: We do not have this up on
the National Academies’ web site yet because I still have a few more
administrative hoops to jump through internally. But information on this study and on all other National
Academies’ studies will be posted on our “Current Projects” web site that’s
reachable via a button from our home page.
And as I’ve mentioned before, the full text of our reports, including
our rather large series of veteran’s health reports, is available at the
National Academies Press site. In
addition, we maintain the site, veterans.iom.edu, which is a one-stop shopping
location for information on all our studies, not just on Vietnam veterans, but
more generally of our studies of veterans from all conflicts. I’d be happy to take questions.
M.
STOTO: Okay. Thank you very much. Ron?
R.
TREWYN: Yeah. David, you commented that you should be
contacted if we have recommendations, but I don’t note an e-mail address or
anything on here for you.
D.
BUTLER: That was — yeah. And that you’re right and it was an
oversight. I have established an e-mail
address for this study. It is
afhs_study@nas — for National Academy of Sciences — .edu. And that’s going to be the best way to get
in touch with me on this study.
M.
STOTO: Anyone else?
D.
BUTLER: Thanks very much.
M.
STOTO: And we’re delighted that
this is finally moving here. This is
something that’s been of great concern.
And the issue that you’re studying has been of great concern to the
Committee as well as whether or not the study was actually going has been a
concern. So this is — this is great
news that it’s finally moving. Paul,
did you want to ...
P.
CAMACHO: I’m sorry, Mike. I just have — are there any possible
roadblocks that you can see preventing you from actually moving forward?
D.
BUTLER: None that I know of.
P.
CAMACHO: So the check from the VA
is in the mail?
D.
BUTLER: It’s in the office. That’s correct; we have a signed contract
with the Department of Veterans Affairs and we have full funding for the study.
P.
CAMACHO: And you have full
funding? So nothing logistically in
terms of that funding or money is going to stop this?
D.
BUTLER: Nothing that I know of.
P.
CAMACHO: Okay. Thank you.
M.
OWENS: What do you envision as the
period of performance of the study, Dr. Butler?
M.
STOTO: The transcriber can’t hear
you.
M.
OWENS: What do you envision as the
period of performance of your — of the study evaluation?
D.
BUTLER: We’re moving expeditiously
to push the study forward. I anticipate
a report no later than this time next year.
M.
STOTO: Rick, did you want to ask a
question?
R.
WEIDMAN: Yes sir, I did. And the question is for Dr. Butler as to the
size of the contract — both the parameters — are they broad enough for you to
do the kind of job and assessment of where the data as well as the tissue
samples, blood samples, et cetera, should reside in the future, number
one? And number two, were there — was
it big enough? Was there enough cash
American provided by the VA in the contract for you to be able to fulfill the
scope of the contract?
RECORDER: Excuse me, sir. State your name for the
record.
R.
WEIDMAN: My name is Rick Weidman,
Vietnam Veterans of America. In other
words, is there enough money there to do it right?
D.
BUTLER: Yes. We believe that we have sufficient funds in
our contract in order to answer all of the questions that the committee was
asked to address. I don’t have the
exact figure in my head; it is approximately $850,000.
M.
STOTO: Okay. Any other questions?
P.
CAMACHO: When is this — when is the
actual — this is actually for you, Michael.
As the answers come out ...
M.
STOTO: Joel.
P.
CAMACHO: Joel, as the answers — as
the answers get to the table November ‘05, what does that do to your logistics
of the Air Force Health Study regardless of what he says? You know what I mean? Are you breaking down already by that time?
J.
MICHALEK: We — we’ve already pretty
much decided to stop doing research on January 1, 2006 and to spend the last
few months of the study in shut down.
So the end of 2005 is putting us at a position where it seems awkward in
terms of, you know, if there’s an active decision to continue the study, there’s
going to have to be some very proactive measures taken by the government
because we’re in a shut-down mode starting January 1, 2006.
P.
CAMACHO: But you’re — when you say
“shut down,” are these the quality or the maintenance of the specimens?
J.
MICHALEK: Well, the maintenance of
the specimens will be there until the last day. I mean, there’s going to — there are freezers; there’s a
building; they’ll be locked up. There’s
an uninterruptible power supply. There
are six million documents stored in a locked building. We have a chain of custody. It’s all in place; it’ll all be there. But what I’m saying is that as we move
toward the last few months of the study, the staff will start to leave because
they have — they have families, you know.
And so we’ve received no direction other than we will shut down October
1, 2006. And until we’re told
otherwise, that’s the markdown of the plan.
And so you’re going to start running into logistical problems as you get
closer and closer to the end as you would in any project.
J.
ROBINSON: We have developed a
shutdown plan. We haven’t heard any
word from anyone that they are going to be leaving at that time or when, but
you know, that is a potential issue. I
think we have enough flexibility to work with whatever the recommendations are.
D.
BUTLER: We’ll move expeditiously to
complete the study as soon as we can. I
have a long track record of not being able to guess how long it takes to put a
study through our scientific review process and reluctant to commit to days —
to dates. But we’re aware of the time
pressures related to the project and we’ll do what we can on our part to
complete it expeditiously.
M.
STOTO: Okay. Thank you very much. Next on the agenda, we have a presentation
from Dr. Michalek, who’s now the — in charge of “investigating principles”
according to the agenda.
J.
MICHALEK: I was not aware — tell me
again what it is that you wanted me to say.
What’s the topic?
J.
ROBINSON: I think, Joel, what
they’re looking for is just an update since the last meeting; that you’ve been
to the APHA meeting.
J.
MICHALEK: Okay. All right.
Since the last meeting, we have revised our paper on cancer in the
control group. It’s a talk I gave in
Berlin in September of this year, and subsequently, I gave the same talk at
APHA in Washington last week. The
document has been revised and resubmitted to the Journal of Occupational and
Environmental Medicine. The paper
shows an association between cancer and dioxin in the control group. It also shows an association between cancer
and years in the Southeast Asia region in the control group.
The
reasons for these associations are unknown and it says so in the
discussion. The paper is in submission
after several revisions. We have a
separate line of work going on in the Ranch Hand cohort taking account of what
we know about the control cohort. The
picture in cancer is complicated to say the least because of the trends we see
in the control group. The Ranch Hand
paper will probably be ready before the next Advisory Committee meeting.
Separately,
we are summarizing our work that we gave to Congress on the potential years of
life lost that shows that participation in the study did not statistically
prolong anyone’s life or improve their health measurably. That’s being summarized in a paper. And finally, we’re doing a case-by-case
review of the Ranch Hand enlisted ground crew who have died of cardiovascular
disease trying to understand the patterns we see. And I shouldn’t have used the word “finally” because there’s
more.
The
Centers for Disease Control has completed 500 randomly selected assays of the
TEQ, which for the first time give us the measurements on 36 dioxin congeners,
and furans and PCBs. And we’re
summarizing those data with CDC right now for — in a manuscript. And that’s basically where we sit at this
point compared to the last time we met.
M.
STOTO: Okay. Any questions or comments?
J.
MICHALEK: Yes?
R.
WEIDMAN: Joel, are the studies
available on a web site anywhere?
RECORDER: Use a mike, sir.
R.
WEIDMAN: Are the — are the studies
available on a web site and link into recent studies that, in fact, have been
published after being peer reviewed?
J.
MICHALEK: We have a web site for
the project which lists the citations of all our published papers. The paper I just mentioned is not on the web
site because it’s not published yet, but it is cleared for public release — the
paper on the control group.
R.
WEIDMAN: Okay. How would one get that if I may ask, sir?
J.
MICHALEK: Send me an e-mail.
R.
WEIDMAN: Okay. Thank you.
J.
MICHALEK: Okay.
M.
STOTO: Okay. Thank you very much, Joel.
J.
MICHALEK: Thank you.
M.
STOTO: I realize that there was one
thing that we — housekeeping item we should talk about and that’s the plan for
meetings for next year. Len, can you
say a little bit about that?
L.
SCHECHTMAN: We’ve been, of course,
surveying the Committee members for their availability at different times for
the meetings that we’ve planned. We’ve
been in touch with Julie and Joel regarding the possibilities of future
meetings. We had initially planned for
up to four meetings for the next year.
We got a message back from Julie that perhaps the Air Force would only
need as many as two meetings.
Considering
that and the possibility that we might also need a wrap-up meeting in terms of
the members of this Committee and how to — how to wind down our own activities
as well as consider next steps if next steps become available to us, we thought
a third meeting after the two technical meetings that we would have regarding
Air Force — Air Force Health Study issues could happen as well. So we will continue to work those dates, and
survey the members and consider the possibilities of availability for all those
meetings.
M.
STOTO: Well, it seems to me like
that third meeting should be after the Academies’ report.
L.
SCHECHTMAN: That would — that would
make the most sense, sure. Yeah, so ...
M.
STOTO: But not too much — not too
much after because ...
L.
SCHECHTMAN: Yeah. I mean, and basically in order to hold a
third meeting within the calendar year, we’re talking November already. So we’re talking a week or two perhaps after
the completion of the — of the Academies’ study. Hopefully, we’ll have enough information fed to us by Dr. Butler
and his group so that we can have — provide input and call a meeting around
those issues.
M.
STOTO: Okay. Okay.
Thank you very much.
M.
STOTO: Well, let’s move into the
discussion of the individual chapters now.
And the first chapter is Chapter 18 about the endocrine outcomes. And Sandy Leffingwell was the reviewer, but
obviously, he’s not here. He did,
however, write up his comments. He’s
really very good at that; I have to note for the record. And I think they’ve been circulated now.
It
looks like — does everyone on the Committee have this kind of grid? It says “RHAC Comment,” but my understanding
is that it really is Sandy’s. You don’t
— you don’t have it? Okay. And, you know, since he’s not here, I
propose that we just take a minute to read through this, see if there’s
anything people want to add or whether the Air Force would like to react to it.
R.
WEIDMAN: Mr. Chairman, if there are
copies available for the peanut gallery?
M.
STOTO: Do we have more copies? Thank you.
I guess I would — it looks to me like the two comments at the bottom of
the first page, about lines 300 to 314, look like they may deserve some
comment; others look like helpful editorial suggestions.
J.
MICHALEK: On lines 311 to 314, I
think it’s always a good idea to place the Ranch Hand dioxin levels in context
with other cohorts. I think that’s a
good idea.
M.
STOTO: Okay.
J.
MICHALEK: And that will just take a
sentence or two.
M.
STOTO: So would anyone else like to
raise any issues or comments?
J.
MICHALEK: I think the point he
makes in the first — in 163 to 165 is congruent with our own paper on insulin
in the 30 matched pairs we sent to Little Rock, Arkansas. In the — in the review provided by Dr.
Kearn, he points out that “during the process of developing diabetes, an
individual maintains glucose levels, but only through very high levels of
insulin until the point is reached that insulin production fails and diabetes
results.” So I think the text from that
article could be lifted out of our published paper and put into the document to
address his comment in line 163 to 165.
M.
STOTO: Okay. Good.
J.
MICHALEK: So in other words, I —
I’m just perusing these. I think
they’re all — most of them can be addressed with minor edits in the chapters.
M.
STOTO: They look — they look to me
like very helpful comments ...
J.
MICHALEK: And they’re all helpful,
yes.
M.
STOTO: ... that strengthen it. And so I — what I would suggest is that we
include this as an appendix to the — to the minutes, and you have a chance to
review them more carefully and respond to any if you — if you think that’s
necessary. And also, we should thank
Dr. Leffingwell for doing such a thorough job.
J.
MICHALEK: Nicely done.
M.
STOTO: Okay. Other — anything else on this — on this
chapter? Rick?
R.
WEIDMAN: Mr. Chairman, obviously I
speak out of ignorance having not had the opportunity to read any of this. But the question I have is a — is a general
one about the — about the whole chapter on endocrine assessment. I cannot tell you the number of our members
and associates who have one part or another of their endocrine system that’s a
mess. And I’m not talking about resulting
in diabetes; I’m talking about thyroid, parathyroid, adrenal gland that fires
all the time. There may be a symbiotic
interplay between that and chronic acute PTSD.
We
don’t know that, but we do know that there have been so many weird diseases,
Lupus-like things that have resulted.
And indications back from the doctors who examine these folks say it’s
because their endocrinal system was way off.
So my — and question back to you and to Dr. Michalek is, was this
examined a full range and not just endocrinal abnormalities that led to diabetes,
number one? And number two, did it — did
you explore other conditions and other disorders that may result from the
endocrinal system being off from the — from the outset ...
M.
STOTO: Joel, can you respond?
R.
WEIDMAN: ... e.g., resulting in
parathyroid?
J.
MICHALEK: I’m sorry. I don’t have the endocrine chapter in front
of me. Does someone have a copy of it
that I can look at? Just want to browse
it quickly. The chapter covers thyroid
conditions as well as diabetes and hormones.
The connection between the endocrine results and other conditions, such
as PTSD, and psychological abnormalities and hematological abnormalities has
not been done. This is the point I’ve
tried to make before in that the research in this report is one-directional and
was written following an analytical plan derived three or four years ago and
approved by the Committee.
It’s
written in a fairly straightforward way and meaning that there are many other
paths that could be followed in subsequent analyses in other research of the
type you described. We are attempting
to do that in-house. This kind — these
kinds of questions that you raise could be addressed on the data, but they’re
not addressed in the chapter. There are
very few analyses in the report that cut across chapters. In fact, I don’t know of any.
R.
WEIDMAN: Mr. Chairman, a follow-up
question. Is in your database, do you
believe that there is sufficient data to be mined to pursue those other lines
of inquiry?
J.
MICHALEK: The answer, of course, is
yes. The other sorts — the other paths
that one could follow are almost uncountable.
And so that, yes; it would require, and would and could easily be
done. The data sets are complete; they
are correct. They’re verified and would
be the source for future research along the lines you suggested.
M.
STOTO: I’d like to make some
comments about keeping with the agenda and doing our job. What the Committee is supposed to be doing
now is reviewing these chapters, and normally, we don’t take comments from the
public. I mean, if it helps to review
the chapters, I’m helping — I’m happy to do that. I think the kind of comment that Rick made is actually quite a
good idea that might be brought up in terms of the National Academy of Sciences
committee.
I
mean, that’s potentially a topic that could be addressed with further analysis
of these data and, you know, the Air Force will certainly have a chance to do
it on its own between now and 2006 or maybe not. But I think that’s the kind of question that could be brought up
there and I would suggest that you do that.
R.
WEIDMAN: I’m sorry. In which context, Mr. Chairman?
M.
STOTO: For the National Academy of
Sciences panel because that’s what we’re talking about.
R.
WEIDMAN: Oh, the new panel?
M.
STOTO: Right. Because one of — one of their questions is what
kind of studies can be done using these data; that would be important to
know. So Gary, if you have a comment
about this chapter?
G.
KAYAJANIAN: It’s very brief.
M.
STOTO: Is it about this chapter?
G.
KAYAJANIAN: Yes.
M.
STOTO: Okay.
G.
KAYAJANIAN: A suggestion; since you
looked at the comparison group breaking down cancers as a function of length of
duty tour, it might make sense to do the same thing for the other effects, such
as the endocrine effect. Longer stay,
more harm; that’s a straightforward question to ask.
M.
STOTO: Thank you.
G.
KAYAJANIAN: End of comment.
M.
STOTO: Okay. Let’s move on to Chapter 20 now. This is one of two that Dr. Johnson has
responsibility for reviewing. It’s
about the pulmonary outcomes.
D.
JOHNSON: I thought the chapter was
well written, and agreed pretty much with the conclusions, and the summaries
and so forth, the discussion. I have a
few comments. On page 22 — or 20-2,
page 2, on the epidemiology, it appeared that the one paragraph at line 171,
“Overall, with the exception of the recent Seveso reports,” it seemed like that
maybe should’ve been included over when — with the other paragraphs that were
discussed in previous studies. It’s
kind of sandwiched between talking about ...
M.
STOTO: It’s 20-3, right?
D.
JOHNSON: That’s page 20-3,
yeah. I’m sorry. But it needs to be put over on page 20-2 or
considered to move it over there. It
seems — it seems a little out of place when I was reading through, but then it
goes back and talks about Seveso report — Seveso reports and sandwiched between
two paragraphs talking about the current AFHS Study.
So
then in line 166, it says, “In all examinations, a slight reduction in FVC,” is
that a significant reduction in all examinations? Because if so, that would be inconsistent with the conclusion, I
believe, which I’ll go to in a minute.
So I just wanted to clarify if that’s a significant slight reduction in
all examinations?
M.
STOTO: Joel, do you want a copy of
this?
J.
MICHALEK: Yeah, I’d like to have a
loose-leaf copy in front of me.
M.
STOTO: Here.
D.
JOHNSON: On page 4, line 214, it
says, “No evidence of an herbicide.”
This is a minor — is that a — is that — it didn’t sound right to me,
“an.” It should be “a herbicide,” I
think, and again, on line 217, “a herbicide,” not “an herbicide.”
M.
STOTO: Depends on if you pronounce
it “er-bi-cide.”
D.
JOHNSON: What’s that?
M.
STOTO: Depends on if you pronounce
it “er-bi-cide” rather than “her-bi-cide.”
D.
JOHNSON: They’re not herbs though. I don’t believe you pronounce them
“er-bi-cides.” Those are “erbs” and
this is “herbicide.” You’ve heard it
both ways? Okay.
M.
STOTO: My kids make fun of me for
pronouncing ...
D.
JOHNSON: Then leave it as is.
M.
STOTO: ... nothing H’s.
D.
JOHNSON: It just didn’t sound right
to me because I say “her-bi-cide,” so leave it as is if you like. I — this is as much a question as a
comment. On page 48 in the second
paragraph in the discussion talking about the FEV1 and the FEV1,
FVC that was “observed in older participants is consistent with published
data. The decreased FEV1 and
FEV1 to FVC ratio that was observed is consistent with published
data. As expected, race was
significantly associated with pulmonary function. FVC and FEV1 were lower among Blacks compared to
non-Blacks.”
My
question in this — that discussion right there, they’re saying that there’s
lower values and they — these were to be expected. But I thought the report talked about percent predicted and so
percent predicted already takes into account race, and height and gender. So I just — I wasn’t sure what that was
referring to there in that discussion.
J.
ROBINSON: We’ll check it out. We will check it out.
D.
JOHNSON: On page 49, 1141, it says
“there is no evidence to suggest that dioxin exposure is associated with ill
effects on respiratory health.” I think
if you look back at the discussions or the results, that should be “no
consistent evidence” because there were some associations found here and
there. Obviously, when you look at the
whole picture, it’s not consistent. It
doesn’t support ill effects on respiratory health, but the same language —
“consistent evidence” — is used in other paragraphs and I just thought that should
be there.
So
then finally if you go to the conclusion, sort of a similar comment. In the second paragraph of the conclusion on
page — what page is the conclusion? — 56, it’s a short conclusion. The second paragraph says, “Statistically
significant findings indicating adverse effects on Ranch Hands were limited to
pneumonia and FVC. A significantly
greater percentage of Ranch Hand than Comparison enlisted flyers had a history
of pneumonia. Ranch Hands in the low
dioxin category had a significantly lower mean FVC than Comparisons. No other statistically significant findings
adverse to Ranch Hands were observed.”
Okay. That’s supported in the results, I
believe. But then the last paragraph
says, “From the results of the 2002 data alone and in conjunction with results
from earlier AFHS follow-up examinations, there is no evidence to suggest that
dioxin exposure is associated with ill effects on respiratory health.” Again, I think the word “consistent” needs
to be in there because otherwise, it seems to me that it’s not — it conflicts
the previous paragraph that says we found this and this. Obviously, in the overall picture, that’s
not enough to support ill effects on respiratory health, but I think the word
“consistent” needs to be put in there.
J.
ROBINSON: Thank you, sir.
M.
STOTO: Okay. Thank you very much. Are there other ...
RECORDER: Cut your mike on, Dr. Stoto.
M.
STOTO: Thank you very much, Dr.
Johnson. Are there other comments or
questions that the Committee would like to raise?
J.
ROBINSON: Dr. Stoto, Dr. Grubbs can
address the question regarding the FVC.
M.
STOTO: Okay.
W.
GRUBBS: Yes, Bill Grubbs. The FVC was just for age and height and not
for race. Those are the standard
adjustments for the percent of predicted and that’s documented in the — I can
give you a line number here — but it was age and height adjusted and not race.
D.
JOHNSON: Okay. I — doesn’t it also mention though that the
FV — one of them — FVC was lower in the elder as expected in older people?
W.
GRUBBS: That we can check. I was just mainly commenting on your comment
on the race.
D.
JOHNSON: Well, there were
several. The, you know, I think — I
thought typically the predicted values took into account height, age and I
thought race. I think ...
W.
GRUBBS: Height and age, I agree with.
D.
JOHNSON: Okay.
J.
ROBINSON: We’ll follow up on that
and ...
D.
JOHNSON: I don’t think it’s a
critical point. It’s just I didn’t
quite understand the point about those comments or how it matched to the data
because you were using percent predicted, which takes into effect those — the
age.
J.
ROBINSON: Thank you.
M.
STOTO: Okay. Thank you for the — for the response. Other comments from the — from the
Committee? Do you have a comment on the
chapter, Rick? Okay.
R.
WEIDMAN: When you say “respiratory
health,” are you including or not including cancers that may develop in the
lungs and the respiratory system?
J.
MICHALEK: I believe respiratory
cancer was studied separately in the cancer chapter, not in the pulmonary
chapter. The pulmonary chapter is
primarily based on pulmonary findings at Scripps Clinic among living people who
attended the clinic. The cancer chapter
uses data collected from all medical records on the lifetime history of cancer,
including lung cancer.
M.
STOTO: I think that’s a good
point. I mean, “respiratory health” is
a rather broad statement here and I don’t know — I don’t recall what the
results were with respect to respiratory cancer.
J.
MICHALEK: I mean, we’ll have to ...
M.
STOTO: Yeah. I mean, if ...
J.
MICHALEK: ... look at that.
M.
STOTO: I mean, if in fact you
didn’t find anything there, then I think the statement is fine. But if — but if there is some evidence
there, this — you may want to temper the statement in some respect. Thank you.
R.
WEIDMAN: Respiratory cancer is
currently service connected presumptive for those who served in Vietnam. If in fact that you’re finding that there is
no adverse health effect, including cancers of the respiratory system, this is
a blockbuster finding.
M.
STOTO: Well, what we’re commenting
on here is the Ranch Hand Study and the number of cancers may not be sufficient
to have power to find — I mean, I’m aware of that — of that finding across the
board. So I think that what this should
comment about is what the Ranch Hand found on that regard because that’s what
this paragraph is about. Okay. Thank you.
Now
the — according to the order here, we’re due for public comment, but that’s not
until 10:20. We’re moving with a lot of
speed. So what I’m going to do, because
that’s been posted in the Federal Register at that time, move through
the chapters now and about that time, come back and give you a chance for your
comments.
M.
STOTO: So that moves us to Chapter
11, Neurology, and for which Dr. Sills is the reviewer.
R.
SILLS: Thank you, Mike. Here we go.
So Chapter 11 on neurological assessment in the Ranch Hand Study is a
comprehensive examination of cranial nerve function, peripheral nerve status
and central nervous system coordination.
The results and conclusions are supported by detailed statistical
analysis of various neurological assessments.
The staff is commended for summarizing the group and dioxin analysis for
neurology variables on page 11-116 to 11-125.
The
summary tables successfully capture the statistically significant neurological
endpoints which were detailed in the results section. So as I went through the results section, I was hoping to see
somewhere where you could really summarize the data and make sense of it very
easily and I think you guys did a really nice job with that as I got to the
discussion section.
Although
a number of endpoints are statistically significant, I agree with the
concluding paragraph on page 11-127 which states that, “In conclusion, based on
these results, the evidence is too weak and sporadic to support that there was
any significant clinical evidence of dioxin effect on cranial nerve
function.” And I’m not too sure you
want, you know, it may — the word “sporadic” is — I’m not too sure we want to
put that in there. It may be better to
just say, “the evidence is too weak to support that there was any significant
clinical evidence of dioxin effect on cranial nerve function.”
M.
STOTO: How about — how about “the
evidence did not support?”
R.
SILLS: And I like that.
M.
STOTO: Yeah. I mean ...
R.
SILLS: I think that’s a better way
to say it.
M.
STOTO: ... and it’s less
judgmental.
R.
SILLS: Yeah. That’s good, Mike. And which is first stated in the conclusion, that “Based on the
results of the analysis of pinprick, balance and patellar reflex in the
follow-up examination, there is some limited support of an association between
dioxin exposure and neurological disease in the peripheral nerves.” One question I have for the staff is that
there are other endpoints of apparently greater significance, such as Achilles
reflex, coordination, et cetera, which is not mentioned in the
concluding paragraph on page 11-127.
And you may just want to revisit this to make sure that the criteria
used for including clinically significant neurological endpoints is consistent.
In
conclusion, this chapter is well written and easy to read. In addition, I appreciate the way the tables
were set up. It was easy to determine
significant p values. Thank you for the
well prepared document.
J.
ROBINSON: Thank you.
M.
STOTO: Okay. Thank you very much. Would the Air Force like to respond to any
of that?
J.
ROBINSON: We will need to go back
and look at the Achilles reflex and coordination, why they were not included in
there. So, and we’ll document that when
we address all the Ranch Hand Advisory Committee comments, so we’ll have a
response there. And we’d certainly be
happy to send that out to you.
M.
STOTO: Okay. Thank you.
Did you want to ask something, Joel? Other comments from the Committee? Questions? Okay. Other comments from others? Looks like we did that one very
expeditiously. So thank you very much,
Robert.
M.
STOTO: Let’s move on now to Chapter
13 about the GI outcomes and Dr. Hassoun is the reviewer.
E.
HASSOUN: Mainly, the chapter is
very well written and easy to understand.
And first, I have a general comment about the title of the chapter. It’s “GIT Assessment.” Although it says “GIT Assessment,” there has
been a focus on the liver only. There
has been a mention also for peptic ulcer in the introduction and somewhere
else, like in 1992 follow-up studies and the — yeah. The last time you mentioned peptic ulcer was in 1992 follow-up
and then there has been no mention about peptic ulcer. I don’t know whether if you have studied
that or ...
J.
MICHALEK: It looks like peptic
ulcer was not included in this chapter.
M.
STOTO: Was it included some place
else?
J.
MICHALEK: Cycle 4, I believe, 1992
report.
M.
STOTO: But was it examined at — in
all of them?
J.
MICHALEK: It was always coded, I
believe, in our medical record data. We
have data on peptic ulcer; yes, we do, but it’s not in this chapter, not in the
report. Apparently, this was a decision
made a while back when we reviewed the analytical plan for the report. I can’t recall the details on that and why
this variable was not included.
M.
STOTO: Okay.
J.
ROBINSON: But we’ve captured your
comment and we can go back and look at why it was not.
M.
STOTO: Okay. Was it — was it significant in the
past? Is it ...
E.
HASSOUN: There is no — there wasn’t
a significant difference, but there should be a mention of this; I mean, why
it’s being excluded from further studies.
That’s what I mean.
M.
STOTO: I imagine that’s kind of an
acute thing that you wouldn’t expect to see many years after Vietnam
service. But, in fact, you wouldn’t see
ulcers, but that it would — an association would be years of service.
J.
MICHALEK: Both dioxin, yeah. I don’t remember the reason why.
M.
STOTO: Well, so if you can just
help us remember why that decision was made, that would be good.
E.
HASSOUN: Then page 13-9, Table
13-1, statistical method in the statistical analysis, I could see that you
divided the table into two parts. And
the second part is not very well related; I mean, for the first part. I would suggest that the table should be
divided into two tables. The first one
is 13-1; the one that starts with “Covariates” would be 13-2. And I could see that you used “(a)” and
“(b)” as the postscripts for “Covariates” and “Exclusions” and you used “(a)”
and “(b)” in the text — in the table text.
And this is very confusing. It’s
better if you used like asterisks or double asterisks just to distinguish
between different (a)’s and (b)’s.
And
if you are going to use two tables, we need to define the “U” and “A” — the “U”
and “A” in the first table, the “D/C.”
And then in the second table, we need to define the “No” and — oh, it’s
already defined. It’s defined, okay, on
page 13-12, it seems. Page 13-16,
current cigarette smoking, you mention that current cigarette smoking had many
effects. And then on page 13-17, you
mention that “lifetime cigarette smoking history was not significantly
associated with any of the dependent variables.” Lifetime — I wonder if lifetime included current cigarette
smoking also? So I don’t understand how
the lifetime should — I mean, how do you explain that current cigarette smoking
is not associated, while lifetime is associated?
J.
MICHALEK: It’s actually the other
way around. Pack years ...
E.
HASSOUN: It’s not as ...
J.
MICHALEK: Yeah. Yeah.
E.
HASSOUN: Yeah. It’s the other way around.
J.
MICHALEK: So you’re asking for some
discussion of that ...
E.
HASSOUN: Yes.
J.
MICHALEK: ... right there, a
sentence or two? Okay. We will attempt to do that.
E.
HASSOUN: And just for curiosity,
about wine — lifetime wine history, just “wine consumption increased, alkaline
phosphatase levels” — or when “wine consumption increased, alkaline phosphatase
decreased.” Does it mean that wine
protected against liver disease?
J.
MICHALEK: We’re just reporting an
association.
E.
HASSOUN: Association, but ...
J.
MICHALEK: We don’t claim to
understand all of these. We’re just
reporting what we see; that’s what we see.
E.
HASSOUN: That’s all the comments
with regard to the chapter. Let’s go to
Appendix F. A definition for Pearson’s
coefficient should be added, the maximum and the minimum, and a definition for
the p value is less or equal to 0.05 should be added. And oh, there is a symbol
in the table that I didn’t understand.
What are these dots and dots equal?
I don’t know. Yes, I mean,
dots. There are dots right there. Oh, is it?
Oh, it’s supposed to be “n” or what?
I don’t know. Equals? Okay.
J.
ROBINSON: Okay, equals.
E.
HASSOUN: I think that’s all what I
have for comments.
M.
STOTO: Go ahead, Bill.
W.
GRUBBS: I can address the lifetime
smoking/current smoking. If you look at
the list of covariates, current cigarette smoking is a covariate for all the
liver enzymes in all the current lab measurements. Lifetime cigarette smoking is only done on the historical
variables, the medical records variables.
So lifetime cigarette smoking is only a covariate for a limited amount,
not all 60 of the endpoints there. So
when the statement’s made that “no covariate associations were seen based on
lifetime,” it’s that it was only done on maybe five variables and those were
historical variables, like presence of hepatitis, cirrhosis, things like that.
M.
STOTO: So that can — that’ll be
explained in the text? The question
about adding the definition of Pearson’s chi square and so on, I mean, that
probably is something we should address more generally across the board because
that — those appear in other chapters as well.
Yeah. I mean, I guess I would —
I would propose that these things be — all be referenced and important ones
described in the — I don’t know which chapter it is; it deals with statistical
methods.
P.
CAMACHO: We had a big discussion
actually several times about this; who’s the audience? Because I know as a sociologist, some of
this stuff is really Greek to me and I haven’t figured it out. So I asked for some explanations and I was
basically told by Ron that it was obvious; that I — but that I wasn’t prepared
as a, you know, as a doctor to read this.
So that’s the argument; it’s really who is our — and on the serious
side, who’s our audience and do we refer them?
Do we put these explanations in one section or do we refer them to other
areas?
J.
MICHALEK: The statistical methods
are in — described in the statistical methods chapter. The Pearson’s chi-square is but one
example. There are many other far more
complicated methods used in the report, such as the proportional hazards model
with arbitrary rights censoring, and the logistic model, and it just goes on
and on. So that’s why the statistical
chapter is the place for it. So to add
— to finish the thought, to add these statistical descriptions to all the
chapters would add extra text to the chapters and I think that it’s best placed
in the statistical methods chapter at this point.
P.
CAMACHO: Maybe then — maybe then
it’s something to replace this statement as made.
J.
MICHALEK: “Go to Chapter 7;” refer
the reader to Chapter 7. A single
sentence in every chapter, right.
M.
STOTO: Okay. Do you have more? Okay. Well, thank you
very much. Does the Air Force have any
further comments to make about those?
J.
ROBINSON: No sir.
M.
STOTO: Okay. Anything else from the other Committee
members, comments from the other Committee members?
R.
TREWYN: I think we’re going way too
fast.
M.
STOTO: What? Are you afraid you’re not going to get paid
enough or ...
R.
TREWYN: I’ll slow us down. I’ll slow us down.
M.
STOTO: And I don’t see any
questions from the — from the audience.
So Dr. Hassoun, thank you very much for your review of that
chapter. Let’s go back to Dr. Johnson
for his second review of the day and this one has to do with Chapter 14 on
dermatology.
R.
SILLS: Mike, I have just one
question. As I look at all the
conclusions for the various chapters and I compare it to the first chapter, the
conclusions, I think that was the endocrine section. And it nicely summarized the data in terms of dioxin exposure and
just the different models: Models 1, 2,
3 and 4. And I thought it was very
helpful and I don’t know if it’s — if it’s possible to — that there’s
consistency between in terms of how the conclusions are drawn for each part,
each chapter. You know, I mean, that’s
something maybe we want to think about in the future or as we go through the
chapters that, you know, if the conclusions are important that, you know, when
you get to the conclusions, you can see similar topics being discussed.
M.
STOTO: Let me — let me add a
comment, then ask the Air Force to respond to that. I agree with you that it’s very important that the — that the
summaries are done in a parallel — in as parallel fashion as possible. And I think that where it’s going to come
out more — most dramatically is when we get to the executive summary and the
conclusions chapter, which I think pretty much pulls out of these — text out of
these chapters. So and we’ll certainly
have an opportunity to discuss it at that point and that may lead us to — it
may lead the Air Force to go back and want to revise the wording of the
conclusions in these chapters. Do you
all have anything you want to say about that at this time?
J.
MICHALEK: Only that we’ve been
attempting to do exactly what you said and we’ve been sensitive to that as we
tried to edit the concluding sections.
And the executive summary was intentionally made to be totally
consistent with the chapter summaries so there would be no conflict between the
executive summary and chapter conclusions.
So there’s a lot of cut and pasting, in other words, from conclusions to
executive summary.
M.
STOTO: And I — it’s hard to be
consistent when you’re writing these things because the data are so different,
and methods, the outcomes studied and so on.
But I think that’s an important goal we should — we should all have in
mind.
R.
SILLS: As Paul was saying, is we
need to remember who’s, you know, I mean, that Vietnam veterans, the general
public may have an interest or will have an interest in these documents. And it would be good to talk in the
concluding statements to have statements in terms of dioxin exposures; “there
was an effect” or “there was no effect.”
You know, just that important information should be captured in the
chapter, in the conclusions.
M.
STOTO: Okay. So let’s come back to this when we — when we
come to the conclusions chapter.
Okay. Thank you. Dr. Johnson has been at bat, I mean — I mean
...
D.
JOHNSON: On deck.
M.
STOTO: ... on deck and now he’s —
now he’s at bat, I should say.
D.
JOHNSON: Okay. On the dermatology chapter, I think
generally, again, it was well written, science-based. The conclusions were supported by the data and the results, I
think a lot of work went into this and people should be commended for all the
hard work they’ve put into this. I have
a few comments to make on it.
I
think if you start from the beginning, the introduction, when I was reading
this, from the first time I read it, you know, you start reading there and it
opens — the background talks about “data collected regarding the occurrence of
acne, the occurrence of acne in relation to time of duty, and the location of
acne in the temples, eyes or ears. And
the following conditions were reported:
acneiform lesions, acneiform scars,” et cetera. And then it goes into talking about
chloracne and the epidemiology of chloracne.
So
I — my — the one comment I want to make is that as I read through this, I was a
little bit unclear at times where we would talk about acne, and then we’d talk
about chloracne and then — and it wasn’t really clear what we were focusing on
and what we were looking at. Maybe up
front, somehow up front if it could — if it could be said that, “It’s well
established that chloracne is associated with dioxin. We looked at acne because” — whatever reason we looked at acne —
to try to capture acne that might have been missed if you just looked for
chloracne because chloracne is difficult to diagnose by retrospect — retrospectively
on questioning.
You
know, that would just kind of make it clear up front. It would’ve been easier, I think, as we went — as I went through
it to kind of keep that straight because you go from one time talking about
acne and you’d be talking about chloracne back and forth, so I think that
comment. And then on page 3, line 195,
it says you were talking about the different results, the veteran studies. And then on line 195, you say, “Also, in a
1998 publication, the risk of acne on the temples, eyes and ears was not
related to serum dioxin levels.” Again,
I think that’s referring to the distribution of chloracne.
But
I think if you added “AFHS 1998 publication” so we’d know that that was
referring to an AFHS study. Because in
the next line, you say, “In the 1994 report published by the Institute of
Medicine, a committee concluded that there is sufficient evidence of an
association between exposure to dioxin and chloracne.” Well, I didn’t know if that’s referring to
the data in this study or not, so I think you might want to add that that’s the
Seveso study there just for clarification.
And
just as an example then, down on line 214, -15 and -16, well, where I — it gets
— where I think it needs to be clarified a little bit more on the discussion of
acne and chloracne, it says, “Data on the occurrence, time and location of acne
were analyzed to assess the possible historical diagnosis of chloracne. No significant difference was observed
between groups for reported occurrence or duration of acne.” You can find several examples through there
of where you kind of go back and forth, so I just include that as an example of
what I just talked about.
On
line 246, the occurrence of “reported” acne, there’s a few places. I didn’t go through and try to find all of
them, but I just think it needs to be “reported.” It needs to be stated at times that this is based upon reported
results just so that you’re aware of what you’re looking at. This is not based upon a review of medical
records; it’s based upon self-reports.
And just here and there, I put in — put that in, not to say that
self-report is not good, or whatever or not necessarily to point out the
bias. We know there’s a potential for
recall bias, but just so that you’re reporting what it actually is.
M.
STOTO: Do you have — do you have —
you’ve marked up your version there with places they ...
D.
JOHNSON: They’re penciled in.
M.
STOTO: So maybe after you’re done,
you can give that to them and so they have an opportunity to see those specific
locations. Did you have any comments about
— responses to this?
J.
ROBINSON: Just with everything, you
know, you always give us wonderful comments and areas that we need to look
at. And since it’s a team approach to
making and assimilating these changes, corrections, alterations, I hate to speak
for the group. So what we always do is
we take this back, and we look at it, and then respond to your comments, and
always address what our response has been.
And frequently, it’s we take that and make those alterations to the
document to make it clearer to the reader.
D.
JOHNSON: That’s — and I would say
my comments are, I think, are more for clarity. I mean, there’s not — I’m not saying that there’s inaccuracies or
errors; it’s more for clarity. On line
461, “Younger participants reported lifetime.”
And then on line 466, “Non-Black participants had a longer mean;”
“reported a longer mean” instead of “had,” just here and there. Then finally, I did want to comment here at
the end on the conclusion again if I could.
The conclusion talks about — it starts the first paragraph, generally
talks about acne.
RECORDER: What page, Dr. Johnson?
D.
JOHNSON: Page 67, it talks about
acne in the first paragraph. And I
won’t read the whole paragraph, but it talks about some positive results or not
— some associations. And then in
paragraph two, “A higher percentage of Ranch Hands in the background dioxin
category than Comparisons had acneiform lesions, but no other significant
findings were observed.” Again, we’re
talking about acne. And then we — then
we mention chloracne: “In summary,
there were no findings of chloracne identified in the Ranch Hand and Comparison
groups.” Okay. Then it says, “The reasons for the higher
occurrence of acne in Ranch Hand enlisted groundcrew are unknown.”
I
think it might be clearer from a science-based standpoint to say at that point
that there was an association — there were associations found between acne and
there’s some — there were some associations found with acne. And then no — and it needs to be made clear
that it’s been fairly well established scientifically that dioxin is associated
with chloracne and not acne. Quite a
few other studies have shown that that’s not consistent to have dioxin and
acne, but rather dioxin and chloracne.
But yet, this study did find some associations with acne if I — if I —
if I understood it correctly.
You
know, there’s other potential confounders of oil acne, tropical acne and
mechanical acne. These type of things
make it, you know, so that the statement’s — the statement’s correct. The statement is correct; I’m not saying
it’s not correct that “the reasons for higher occurrence of acne in Ranch Hand
enlisted groundcrew are unknown.” I
would agree with that. But yet, it’s
sort of an association was found and so it should probably be mentioned or
maybe stated that way.
And
then finally, “Physical examination for acneiform lesions, acneiform scars,
comedones, inclusions cysts, depigmentation and hyperpigmentation revealed no
pattern suggesting a relation with dioxin.”
I thought that was — I thought it would suggest — I think that it should
be said “revealed no pattern suggesting chloracne.” And these are — these are suggestions for clarity.
M.
STOTO: Go ahead, Joel.
J.
MICHALEK: This is not the latest
version of the chapter. I mean, we can
make — at least I don’t see the edits in here that we talked about on page 459,
talking about the climate. I thought we
had edited that paragraph and I don’t see that edit in this version.
M.
STOTO: That one that I gave you was
one that I asked my secretary to print out and maybe she printed the wrong one
because we had two versions of them.
Yeah.
J.
MICHALEK: So this is not the
draft? All right, so there is another
draft called “draft final report” that does have edits for this material.
M.
STOTO: But I think that Dr. Johnson
had the latest one, right?
D.
JOHNSON: I’m not sure that I
do. I — somebody said something to me
before this meeting that there is a later draft. I can’t remember who said that to me, but ...
W.
GRUBBS: Maybe I can shed some light
on this.
M.
STOTO: Okay.
W.
GRUBBS: There is — the copies that
you are reviewing are what we call the “second drafts” of the report. Okay.
The second drafts have been progressing along as you know. For the draft final report — if you want to
call that a third draft, we call it the “draft final report” — that would
include changes to the conclusion, for example, and the executive summary that
would have been also reflected back in the third drafts and the draft final report
of the chapters.
So
what Joel — what Joel is saying that this isn’t the final draft, this isn’t the
draft that he’s familiar with, they are — they are currently looking at a draft
final report which may include edits from the conclusion which have been placed
back in the chapters. Does that make
sense?
J.
ROBINSON: It’s just an issue of
timing, and that basically, the changes that were made to it were done after I
had sent it out to you. So the comments
that you have made were not addressed — were not addressed, so in that third
version, let me say.
W.
GRUBBS: Yeah. I think the better thing to do is when you
review the conclusions and executive summary, make comments on that as to
appropriateness of what should and shouldn’t be in there. And then those comments can be placed back
in the chapters because as Julie said, they are — the conclusions, the
executive summary are a compilation of the individual things.
M.
STOTO: Okay. So when we — when we review the executive —
the conclusions and executive summary and we ...
W.
GRUBBS: And comments are made, and
the Air Force said, “Yes, we’re going to respond to those comments,” we will
respond to them in the conclusions and executive summary and also put them —
put the same language back in the chapters.
M.
STOTO: Okay. Now, I mean, but there’s some substantive
points that Dr. Johnson raises now that I think that should be discussed
now. I think the — I think the — they
come down to the confusion between acne and chloracne and maybe whether or not
chloracne is considered a subset of acne.
Is that — am I right about that?
D.
JOHNSON: Well, chloracne is, you
know, has been associated with dioxin exposure and dioxin-type compounds. And it has a specific distribution and it’s
not the same as just acne vulgaris or other forms of acne. And there are other causes of acne, like I
mentioned, oil acne. People work around
oil; people work in a tropical climate; people working with, you know,
mechanical acne, all those things.
M.
STOTO: Yeah.
D.
JOHNSON: So there are — there’s
some other causes, but I think prior occupational studies have not associated
dioxin with those types of acne. It’s
more specifically chloracne.
M.
STOTO: Yeah.
J.
MICHALEK: There’s a history to
this. We have a paper published in like
1997 which show the — which show no association between acne and dioxin. The reason we studied acne is we are using
historical reported information and that an individual himself would not know
whether he’s reporting acne or chloracne.
All he can do is say, “Well, I had pimples on my face.” The question is where were those pimples
located and did they have a pattern suggestive of chloracne? Chloracne is difficult to diagnose as I
understand. So this is — this is
historic.
J.
MINER: Biopsy and pattern-based.
J.
MICHALEK: Yes, biopsy and
pattern-based. So this is all described
in our published paper and we attempted to describe it in previous Air Force
Health Study reports; that we are left with studying what we would call
acne. And we’re trying to infer, based
on location of on the body, anatomical location, whether it’s suggestive of
prior chloracne. And that needs to be
spelled out in here, I think, following your comments. I’m agreeing with your comments.
M.
STOTO: Okay. That — I think that — I think that makes
sense. So basically, you could do
examinations of these people when they came in, but that was probably too late
to tell whether or not the chloracne ...
J.
MICHALEK: Right. Imagine that, of course, I don’t have to say
anymore.
M.
STOTO: Yeah, and — but I think it
is important to spell that all out.
D.
JOHNSON: I don’t know that it needs
to be in the conclusion. Maybe the
conclusion’s fine as is because you don’t know what caused this
association. However, at some point,
maybe in the discussion, maybe just discuss a little bit more what happened
there.
J.
ROBINSON: I think that’s an
excellent point. Just to let you know,
the only change that we made once we got the — our comments back from SAIC is
in the areas of 1417 through 1425. And
in there, it talks about, “however, there may have been a difference in
climactic and living conditions between Ranch Hand and Comparison enlisted
groundcrew.” Our physician had some
concerns about the accuracy or the supportability of that statement and so we
made some modifications to that paragraph.
From my — I brought my review chapters with me and that was the only
change that we made, so it’s 417.
D.
JOHNSON: What line? Which line?
J.
ROBINSON: 417, where it talks — 1417,
excuse me.
D.
JOHNSON: 1417?
J.
ROBINSON: 1417, it’s page 14-59.
M.
STOTO: I — coming back to the
question about acne and chloracne, I think that it’s important to have a
paragraph or so toward the beginning explaining that distinction and a brief
reference to that in the conclusions chapter — conclusions section because, you
know, that’s the thing that gets pulled out into the executive summary and so
on.
D.
JOHNSON: Sure.
M.
STOTO: Don’t you agree?
R.
SILLS: Yeah. I just want to underscore what Dr. Johnson
said and Dr. Stoto said about chloracne because in terms of dioxin exposure,
that’s a general thought about dioxin exposure. It’s an important finding that’s reported; that chloracne is
associated with dioxin exposure. So I
think it’s critical, as Dr. Johnson said, to really define, you know, how, you
know, or define acne and chloracne and how you used it in the — in the
documents so it’s very clear to somebody who’s picking up the document for the
first time. And as Mike was saying, really
capture it also in the conclusion, you know, the issue about chloracne versus
acne.
M.
STOTO: Okay. Thank you.
Other comments from the Committee?
Questions? Further response from
the Air Force? Comments from the
audience? Okay. What I propose to do now is go on and do
Chapter 10 on neoplasia. And then after
that, take a break and then come back and do the conclusions and executive
summary. Does that make sense for the —
for everyone? Ron?
R.
TREWYN: Well, since we’ve had all
these nice complimentary components coming up and I have about a decade long
reputation of not being — taking that approach, I don’t want to disappoint
people by thinking I’ll — I’m falling into this pattern, so I’m not. We have a handout.
M.
STOTO: In other words, we’re going
to need a break after yours?
R.
TREWYN: We’re going to need a
break. So I always believe if you’re
going to pick a fight, you start in the first sentence and pick a fight. So nothing wrong with it being well written;
it was probably well written. I was
just, as I say, underwhelmed by the content.
We had a discussion the last time about the fact that a lot of the
numbers have been modified; that based on the Southeast Asia effect, looking at
national cancer incidence and whatnot that the group in publications has found
some significant results. Those are not
reflected in this chapter. My view,
they need to be reflected in the chapter and that’s going to be essentially in
the general discussion. That’s my major
point. Okay. So ...
J.
MICHALEK: May I ask you a question?
R.
TREWYN: Yeah.
J.
MICHALEK: Are you talking about
published findings or all findings?
R.
TREWYN: All findings. I was familiar with the big paper that was
published, reference 179, I think it is.
We’ve gotten a 92-page first draft of that. It’s been shortened. In
my view, any data that has been generated relating to cancer where you’ve
already got the methods worked out, they may differ from the models that are —
that are in these — the generally published stuff or you’ve — where you’ve got
methods worked out. You’ve assessed the
data; you’ve got results related to cancer.
That should be in this chapter.
That
it should not — as I make the point — if it was done incorrectly for the first
15 to 20 years, it doesn’t mean you have to for the last five years. That if there are new observations, it’s
scientifically unsound to do that. If
you’ve made new observations, recognize that by reassessing, reanalyzing, you
get significant findings. All of those
findings should be in this chapter in my view.
M.
STOTO: Well, and this is — this is
a significant issue. I think that there
are a couple of things to discuss. You
know, one is to the extent that things have already been published, they need
to be cited and made clear. And I — are
you saying that that has not been done or ...
R.
TREWYN: That really has not been
done. There is a minor, or 18 lines or
something hidden in the epidemiology section; that reference 179. That’s not adequate based on the significance
of that publication.
M.
STOTO: Okay. So one thing is to consider whether or not
the reference to that study and related studies should be beefed up maybe?
R.
TREWYN: Right.
M.
STOTO: Or — okay. The second issue is I think that you were
suggesting that studies that have been done and maybe have been submitted, but
have not yet been published should be mentioned here?
R.
TREWYN: Absolutely.
M.
STOTO: Well, I guess that’s not so
absolute in my mind because if that happens, then they can’t be published in
the peer review literature according to the normal rules of the ...
R.
TREWYN: You do that all the time in
federal reports. Any grant that you
get, you put all the data in your technical report, okay, and then collect and
work on getting publications over what — whatever period of time. I think to leave this out — the analysis out
of this report is really, in my view, it’s not sound science to do that.
M.
STOTO: Well, I mean, is it — I
guess there’s a difference between the technical report that goes back to the
sponsor and something that’s published as it is a formal publication. And I think that many of the journals would
take the position that if it’s — if results like that are published here, they
may not be — they can’t be published in a journal. I don’t know whether that’s an issue here, but I think that’s
something.
J.
MICHALEK: Does this count as a
publication? I mean ...
M.
STOTO: That’s the question.
J.
MICHALEK: Yeah, because it’s a
federal report and not a journal article.
M.
STOTO: Yeah.
R.
TREWYN: My argument would be that
it would not count. And again, whether
every journal would agree with that, I don’t know. But I think, again, just having received lots of federal grants
over my career, that, you know, you put everything, all of your data, all of
the methods you applied, all of the data into the, you know, into your
report. And it can sometimes take years
to get peer reviewed publications out on it and you wind up in the publications
generally removing a lot of what is potentially consequential information. And in my view, in this study and in this
report, leaving out any significant observations would be — would be
problematic and a mistake. And that’s
...
M.
STOTO: Okay. I mean, the other — the other issue here is
whether or not it make sense to do an analysis in the cancer chapter that’s
different from the analyses that’s done in all the ...
R.
TREWYN: Right.
M.
STOTO: ... Models 1, 2, 3, 4. And, you know, that I mean, that’s an issue
that I’ve taken a position on; that I’ve been convinced that this is the right
approach. That the purpose of this
series of reports is — that a main value of this series of reports is the
consistency across all these, across the series. And that because there is also the opportunity to publish in the
peer review literature, that’s okay.
And that I’m not 100 percent comfortable with it, but that’s the
position I’ve been ...
R.
TREWYN: Well, I would ...
M.
STOTO: I would accept.
R.
TREWYN: I would certainly like to —
and this is where I think we may want to spend some time today is really
discussing this because certainly with regard to this chapter. Well, the last time I tried to raise some of
these points about this reanalysis effect, it’s probably much less relevant in
the other chapters where there has not been an opportunity to take advantage of
these new learnings and apply them where I know that a lot of this has been
done, even if a lot of it has not yet been published.
And
I think, again, in my view and I really do think we should have a — potentially
a substantive discussion of this because I think one could, you know, I was at
the meeting in 1999, as were you, Michael, where the — where the observation
came up. I believe that was one of your
first meetings or where the — where the discovery came that a significant
number of the comparison group individuals were in fact stationed in Vietnam,
meaning they were probably exposed to herbicides. Potentially in some of these cases, many of those bases were sprayed. There wasn’t a blade of grass growing in or
near most of those military bases.
I
guess one could question, one would never, of course, suspect that there was an
attempt early on to mix exposed individuals into the control group. But I think now that we have the observation
or did since 1999 to then exclude the analysis of breaking those out, which I
know there’s been a lot of work put into doing that, of then looking at where
the individuals were in Southeast Asia.
Were they in Vietnam, not in Vietnam?
And then the group certainly has run a lot of these analysis. And if the analyses have been run, again,
it’s my argument that those should be all included in this chapter, which I
recognize makes for a substantial lengthening of an already lengthy chapter.
J.
MICHALEK: Unless we were simply to
summarize in a few sentences or in sentences in the introduction what we’ve —
what the other publications are saying.
You’re talking about summarizing data that’s in submission to journals
right now. Perhaps that could be done
in some sentences instead of a tabular form.
M.
STOTO: Yeah. Have you made presentations at meetings
about these things?
J.
MICHALEK: Yes, multiple times.
M.
STOTO: So I guess that what I would
propose to put on the table is that there be a — maybe a substantial section in
the — in the — in the epidemiology section at the beginning. And maybe in, you know, reflect again in the
conclusions ...
J.
MICHALEK: Right.
M.
STOTO: ... that say that there’s
because of what Ron said about the controls having served in Vietnam.
J.
MICHALEK: Right.
M.
STOTO: There have been a series of
studies done looking at these data in a different way.
J.
MICHALEK: Right.
M.
STOTO: Some of those have been
published and they found X, Y and Z.
Some of them have not been published yet, but have been presented at
meetings and they are suggesting A, B and C.
J.
MICHALEK: Actually, the abstracts
have been published.
M.
STOTO: Abstracts? Okay.
J.
MICHALEK: For example, the dioxin
conference data I described on the comparison group is summarized in an
abstract in the proceedings. So perhaps
that could be referenced.
M.
STOTO: Right. And so I think that — I mean, I guess I
would propose that if we did that and then said and now we’re going to proceed
with this analysis that’s parallel to all the other analysis in this report,
would that ...
R.
TREWYN: And I’m not sure. I’m still — I would still argue for the
inclusion. And I think part of the
reason is because certainly, at least my understanding of some of this data, it
really does document some substantial increases in cancer, certain types of
cancer for some of these individuals.
If
that’s the case, I believe it’s incumbent upon this group to at least argue
that that data should be included into — in the report. Because again as we’ve talked about the
audience, if Vietnam veterans are among — and their family members are among
the audience for which this is being published, to leave out very, very
consequential information would seem to me to be inappropriate, just ...
M.
STOTO: Comments from others on the
Committee about this?
P.
CAMACHO: What’s a good
compromise? Is there a compromise in
any way?
R.
TREWYN: Considering that we’re only
advisory and I’ve been voted down on this Committee before, this is — I am just
expressing, you know, my view. And it’s
part of the reason as I got into this, I decided I certainly needed to have
written — some written comments to hand out so there’s no mistake about my
particular position in this.
P.
CAMACHO: What’s the — what’s the
cost, Joel? What’s the cost of getting
some of this in? Is that — is it a cost
issue and time?
J.
MICHALEK: I think Bill Grubbs can
tell about the cost. You’re talking
about a new round of analysis with ...
P.
CAMACHO: Are we just talking ...
J.
MICHALEK: ... one or two additional
statistical models.
R.
TREWYN: No. I’m just talking about incorporating. Again, I’m not talking about rerunning
anything that you haven’t rerun for write-ups, for presentations,
publication. It’s including things that
you’ve already done. So it would, in
fact, add by having to put that into at least this particular chapter.
J.
MICHALEK: Oh, okay. Now I get it, okay.
R.
TREWYN: That ...
J.
MICHALEK: You didn’t want to reanalyze
our data?
R.
TREWYN: No.
J.
MICHALEK: You wanted to add more
detail on in-house research in the introduction and discussion? Is that correct?
R.
TREWYN: That’s — that is correct.
J.
MICHALEK: Okay. That is material that would not be — that’s
something we could do in-house and not by SAIC. I could — we could write paragraphs for insertion in the chapter
to summarize in-house research.
P.
CAMACHO: Does that make you happy?
R.
TREWYN: That — yeah. And that was really ...
P.
CAMACHO: It improves the situation?
R.
TREWYN: ... is the issue that I was
arguing for; is that stuff that where the analyses have already been done,
again, not asking to go out and reanalyze, to have to do anything beyond,
recognizing though there is a substantial amount. And so it really could double, triple the length of this
chapter. Who knows?
J.
ROBINSON: And in regards to, you
know, cost involved, it’s something that we would have to discuss with our
program manager ...
R.
TREWYN: Certainly.
J.
ROBINSON: ... you know ...
R.
TREWYN: Understood. I ...
J.
ROBINSON: ... to look at that issue.
P.
CAMACHO: But see ...
M.
STOTO: I can — I just want to
clarify. I thought I understood and was
agreeing with what you were saying until the last sentence. It seems to me that it can be — is a lot of
work that’s been done and it can be included.
And it’s a question of paragraphs and maybe pages ...
P.
CAMACHO: Right.
M.
STOTO: ... but not doubling the
length of the chapter, which is what I thought I heard you saying.
R.
TREWYN: Well, when you consider
that the one — the very first draft of the — of the — what is reference 179,
when that was provided to us electronically — I’ve got it printed out here —
it’s 92 pages long. I can see why that
was shortened by the — by the journal.
But by the time you include — if you include the actual analysis of the
data as was done in this case, it, again, it adds content depending on the
depth that you — that you included.
J.
MICHALEK: But the 92 pages was
double-spaced, 12-point font.
R.
TREWYN: Sure.
J.
MICHALEK: And now you’re talking
single-spaced, 10-point font.
R.
TREWYN: Sure.
J.
MICHALEK: So you’re down to four or
five pages if you try to put most of it in there.
R.
TREWYN: Yeah, and again, I don’t —
whatever it winds up being, it winds up being.
And I don’t — it — I’m not saying you have to double the length of this
chapter. I just believe if you’ve got
data that you have analyzed from this particular study and it’s relevant to the
issue, that we should not be encumbered by models that may not be adequate for
interpretation and we should put all the data in.
M.
STOTO: And because there are
publications and quasi-publications that we can cite.
R.
TREWYN: Exactly.
M.
STOTO: Okay. Paul?
P.
CAMACHO: Finally, I have to
agree. It’s one — on one hand, we’re
thinking of who’s going to read this and it’s going to be professionals. But on the other hand, this whole thing is
about the — a very emotive and sociopolitical issue of herbicide use and the
consequences of that herbicide use on our troops. And not to — not to look at the crystal ball, but we see
something about that with the Gulf I War veterans and we’re absolutely going to
see it with this Iraq-Afghanistan war, the same kind of exposure issues to
something.
M.
STOTO: Right.
P.
CAMACHO: And so you’re going to be
asked to respond to that. And it’s
really as much of a sociopolitical, emotional, national issue as it is anything
medical. And that’s the point.
M.
STOTO: Okay. Other comments?
R.
SILLS: In terms of what Ron said, I
think I like your suggestion, Mike; is to go ahead and include in the
introduction and in the discussion a lot of the studies that have been
published so that — so that the reader could have access to that data and be
able to compare with what is published so that we have a balanced report and
that people could have — make the best assessment. So, you know, since a lot of that work has been done, it’s just
summarize it in a section and include in the report, in the chapter.
M.
STOTO: Okay. Thank you.
Other comments from the Committee?
Jay?
R.
TREWYN: And I would also mention
that I — that was on my first two paragraphs.
I have additional comments, so ...
M.
STOTO: We’ll come — we’ll come back
to the other comments. I just want to
deal with this issue first.
J.
MINER: Dr. Miner. We have had a precedent for sticking
findings from our outside studies in reports before. We did that with the cardiovascular disease, for instance. I
think in the ‘92 report, we — when we found that there was increased
cardiovascular disease in the enlisted ground crew, we made a sentence in the
report that stated that to let the know — let the reader know that that was
going on. So I agree that we can make
some comments about that.
Now
there are some things here though that I would like to specifically address;
one, your desire to say what the mandate of the study is. For the record, since we have a lot of new
individuals, I would like the read the purpose of the investigation from the
protocol, the 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.” And I’ve read this
to you before in earlier things.
So
the comments that whether herbicide sprayed, and then I think the Air Force has
used as a surrogate for exposure to Herbicide Orange, we use dioxin. And so that’s why it’s so dioxicentric and
so forth. Now should way back when all
the herbicides — I don’t know; you’ve always wanted a study that included all
the herbicides, but that’s not what this study was. And so for the Committee, that’s why it’s dioxicentric. And for the record, that’s why it’s
dioxicentric because the purpose the study was to study Herbicide Orange.
M.
STOTO: Okay. So this refers to the third paragraph in
Ron’s comments, right? And this is an
issue that I flagged actually with respect to the executive summary as
well. So did you want to say anything
more about that, Ron, or anyone else?
R.
TREWYN: Yeah. Let me just — let me throw in one thing
because not — it — I’ll have to admit it’s been a while since I’ve looked at
that, the original Congressional language back when this was all started way,
way back. I thought it was — I
remembered it as being broader than just Orange. But if that’s the original mandate by Congress was to only look
at Agent Orange ...
J.
MINER: Well, that was the Air Force
protocol.
R.
TREWYN: Okay. Air Force protocol. All right.
J.
MINER: That’s what we’ve been
doing. That’s what we were charged to
do.
R.
TREWYN: Okay, but then I — because
I do recall it, actually, and it goes back a few meetings ago. I think we did look again at the — at the
Congressional mandate, and I — as I recall, the language was broader than
that. It was to look at herbicides
sprayed in — utilized in Vietnam and that then, in fact, would have included
things beyond just Agent Orange.
M.
STOTO: Did you have a comment?
D.
JOHNSON: More of a question for
Ron. If this was added — the data that
you’re talking about — other than just being more inclusive, all-inclusive into
the data, will it change any conclusions or findings or — by adding that data?
R.
TREWYN: Yes, it will. It will add significance to the cancer
incidence, not necessarily just with regard to the Ranch Handers though. It will — but it will add significant —
significance to the data by doing these analyses in the — in the various forms
and I think this is comparing to the national cancer incidence. But also by breaking out where and time in
Southeast Asia and location, it does make for a significant increase in the
cancers in some of those groups. So
therefore, it is highly relevant.
D.
JOHNSON: So it would change — well,
it would change the conclusions or just add significance?
R.
TREWYN: Well, in some cases, it may
just confuse the conclusions. But it
would be, I think, a more accurate reflection of the — of the outcomes; that
there were adverse health effects for individuals based on service in Vietnam
or in Southeast Asia. Again, and going
back to the original thing, now it may not be as clean as between a comparison
group and the Ranch Hand group. It
clouds some of that, but it helps clarify, I think, the significance of the —
of the outcomes; that there were adverse health outcomes.
M.
STOTO: It seems to me that the, you
know, the summary on pages 137 through 139 is the summary of these — this
analysis. We’re basically studying this
Ranch Hand cohort versus a certain control and doing certain analyses that are
— that are agreed upon and they change.
Adding the stuff that Ron suggests will put that in the context that may
make it easier or harder to understand.
But
I — but I think that, you know, these are — these summaries on those pages that
I mentioned, that’s the summary of this — of these data, and analysis and
that’s that. And then what this — and
then, of course, then we get into the conclusions chapters and how we interpret
those findings may be different depending on this context that these other
analyses suggest. Is that reasonable to
everyone? People seem to be nodding yes
here because that — you don’t know whether that’s reflected in your ...
D.
JOHNSON: So you don’t really know
until you look at it whether or not it’s going to change associations? Either add associations or remove a
significant association, you don’t know yet?
J.
MICHALEK: But you — if you’re
talking about unpublished results, then you’ve already alluded to other risk
factors in Chapter 7 that this report does not address, such as when they were
there.
M.
STOTO: Well, no. What I’m saying is that Table 10-43, right,
that’s not going to change? That table
will not change?
J.
MICHALEK: It will not change
because this report was written under an analytical plan described ...
M.
STOTO: Right.
J.
MICHALEK: ... to you three years
ago.
M.
STOTO: And this is — this is the —
this is the summary of the analysis that we all agreed to do?
J.
MICHALEK: It is.
M.
STOTO: Okay. Now the conclusions, Section 10.5, might in
fact be somewhat different if these are data are interpreted in the light of
all this other information that Ron brings up.
J.
MICHALEK: I believe that is true.
M.
STOTO: Okay. So does that answer your question, David?
D.
JOHNSON: I think so.
M.
STOTO: Yeah. So I guess what I would — I would propose is
that we have a chance to see again by mail the changes that are made in this —
in this section, particularly that.
J.
MICHALEK: I’d like to clarify once
again, are you asking to summarize all published and unpublished research in
this report, in the introduction and the summary?
M.
STOTO: That’s relevant.
J.
MICHALEK: That’s relevant. In other words, relevant to cancer?
M.
STOTO: Yeah.
J.
MICHALEK: You are. Okay.
M.
STOTO: And — but to summarize it.
J.
MICHALEK: Summarize it, not to do
it. I mean ...
M.
STOTO: Right.
J.
MICHALEK: ... summarize it; yes, of
course. We’re not talking about another
20 tables. We’re talking about a
summary.
M.
STOTO: Right.
J.
MICHALEK: Is that true?
M.
STOTO: That’s right.
J.
MICHALEK: Okay.
M.
STOTO: And I would add to modify
the conclusion ...
J.
MICHALEK: Accordingly.
M.
STOTO: ... accordingly.
J.
MICHALEK: Yes. That’s what you’re saying?
M.
STOTO: Yeah.
J.
MICHALEK: All right.
M.
STOTO: Is that — Ron, is that ...
R.
TREWYN: Yeah. I mean, I’ll certainly start with that. I would — I guess I would think, you know,
relative to the, you know, the next round of reviews of significance, you know,
for what — for cancer cause and whatnot, for example, that the Institute of
Medicine might be doing. I would think
at some point access to the tables in the actual analyses that were done, if
they don’t wind up being published anywhere because you do wind up a lot of
these things being thrown out.
I
guess my strongest preference would be that all of the analyses that have been
done either as an appendix or something should be included. But if I’m going to lose that battle, I’ll lose
that battle. And my fallback would be
at least having the summary in there would be — would certainly be very
helpful.
M.
STOTO: I mean, that material has
actually been presented to the Institute of Medicine already if I recall.
J.
MICHALEK: Not all of it. The ...
M.
STOTO: Okay.
J.
MICHALEK: There’s material that
we’re researching right now that may never be published. It took five years, for example, to get our
peripheral neuropathy paper published.
It took seven years to get our dermatology paper published. It took three years to get our cancer JOEM
paper published. We’re — we only have a
year left. And so there is merit, it
seems to me, to put these findings in the report that are not published yet in Cancer
because we only have a few months left.
M.
STOTO: Okay. Let me — let me ask this. Does anyone know what the schedule is for
the Institute of Medicine’s report? Is
there one more report due? David, do
you know that? It may not be your
project, but you might know the answer.
D.
BUTLER: We are presently completing
Veterans and Agent Orange Update 2004.
It’s in the scientific review process.
The Congress has mandated that we continue to publish studies every two
years through 2014.
J.
ROBINSON: And just to broaden
Joel’s comment about it may never be published, any research that has been
completed will be published. If it is
not in a peer reviewed journal, at least as a technical report in the Air
Force.
M.
STOTO: Okay. Well, that’s important. Thank you for that. Okay. So, and then of course, depending on the results of the new IOM
committee, there may even be a suggestion that the study be continued in some
way and analysis be done. So it’s not
like these things are being buried is the bottom line. That’s the key; that’s the key thing. Okay.
R.
WEIDMAN: I was just going to say,
Mr. Chairman, with all due respect to the gentleman from SAIC, is that when the
original — sir?
J.
MINER: I’m not from SAIC.
R.
WEIDMAN: Well anyway, whoever you
are, sir. The — when the protocol was
first put together on ...
M.
STOTO: Could you save it for the —
for the ...
R.
WEIDMAN: Yes, I can.
M.
STOTO: Because that’s where it’s
relevant there. Okay. Thank you.
Okay.
R.
TREWYN: Me again?
M.
STOTO: Back to you on the other
specific issues.
R.
TREWYN: Okay, and again, I will
just run through very quickly what’s down here and it does help clarify a bit
why it is so dioxicentric. But my
assessment is still that because the Congressional mandate was herbicides, that
wherever there is — for example, in toxicology — where there are literature
studies, at least reference to those studies that show that other
components. It doesn’t have to — have
to be any long citation, but I think things like 240, cacodylic acid and
whatnot where toxicology studies have been published. Those are components of the herbicides; they should be included;
likewise, epidemiology.
Getting
down to the summary of previous analyses that clearly — and this gets to, I
think, the point, Michael, you’ve been — were making; that restating what the
findings were in those studies is certainly very appropriate. But then with new information, at least
mentioning that that could impact or have a bearing on how that data would now
be assessed is the point of this; that to just say that’s fact when you have
new information that may, in fact, cast some light on that, that should at
least be — should be raised.
Let’s
see. Okay, and the parameters of the
2002 are similar, sort of where I mentioned the 92-pager. Clearly, there are many other — now another
paper submitted and additional data. So
that goes down through the methods, results, discussion and summary; that at
least some reference to all of that should be in there.
And
then getting down to the final points, that then again, because it’s really the
cancer chapter where this stuff — where all these analyses have been run. This would be the one chapter where there’d
be a huge, potentially a significant increase in the amount of material. At least, that should be laid out where
appropriate in the introduction, in the summary and conclusion chapters of —
the relevance of that could be fairly short, but it needs to, I think, be
mentioned.
And
then the last point here is that I was, in fact went back through. I saw a number of 2003 references: references 171 through 177 on cancer
relationships that have been published by other individuals. So I went back into the — into the report to
find the context in which those were described and I couldn’t find the — any
discussion or any — even that they were mentioned.
And
I think there are — as I got looking, I think there are a number of things out
of the 186 references at the end. I
think there — it goes on, then it starts out and you get up through about 90 or
100-and-some where it’s fairly clear that this list is growing. Then all of a sudden, it jumps up to the
last ones. I think there’s a bunch of
things in the references that are not incorporated into the text anywhere. And I guess that should be addressed and I
would hope that hasn’t happened in a lot of other chapters.
M.
STOTO: Okay. Bill?
W.
GRUBBS: I can — I can address
that. I can check that out. Our mandate was to include all publications
up through 2003. So from the initial
literature review, we had to update that — update the literature based on those
new references, 2003. The — they have
been incorporated in there; the numbers just may be off and we’ll check that
out.
R.
TREWYN: Okay.
M.
STOTO: Okay. Thank you.
R.
TREWYN: So I knew mine would take a
little longer than the others, so somebody had to — had to slow this thing down
a little bit.
M.
STOTO: Well, no. We appreciate your thoroughness on
this. I mean, this is an important
issue. Other comments from the
Committee about this chapter?
Questions? Others? We’ll come back to this issue about the
purpose of the study when we deal with the — I think it’s the — it’s the
executive summary where that — where that comes up again. Okay.
Let’s take a 15-minute break and come back at about 10:25.
[BREAK: 10:10 A.M.-10:25 A.M.]
M.
STOTO: Okay. If everyone’s ready, Paul’s finishing his
yogurt. Len has some information about
next year’s — okay. Okay.
M.
STOTO: So then with that being the
situation, we are now in the public comment session. I know we have one, Dr. Kayajanian, has asked to speak. Are there others here who want to speak in
this public session? Rick Weidman,
okay. Well, go ahead. I just want to remind both the speakers that
the primary topic for today’s agenda is reviewing this report from the latest
cycle of the exams and analyses. So
we’re happy to hear comments on other topics, but we — there may not be a lot
of discussion on things that are not relevant to the report that we’re
reviewing today.
G.
KAYAJANIAN: Thank you. My comments are on two things that probably
are not as germane as the Chairman would like to today’s discussion — two
papers and slides that were presented by Dr. Michalek earlier this year in
Berlin: one deals with the cancer
incidence in the comparison group based on length of duty tour and the second
deals with heart disease mortality primarily in the comparison and Ranch Hand
studies. Let’s deal with the first one
first.
There
was a reason that Dr. Michalek looked at the comparison group to find out
whether there were some factors that were tied to cancer that weren’t
dioxin. And he organized 400 — 1,481
individuals into four exposure groups so to speak based on length of time,
length of service and looking at two indicators, two broad indicators: SEER cancers, which would be total non-skin
cancers plus melanomas, and then the larger group of total cancers.
He
found something very interesting; that in the longest duty tour group that had
from 3.6 to about 15 years in service, there was a significant increase in SEER
cancers compared to the shortest duty tour.
But when he looked at all the cancers, he didn’t find that increase and
that seemed to be a mistake. And the
reason it seemed to be a mistake is that if you looked at the non-SEER skin
cancers — the basil and the squamous cell cancers — he actually would’ve found
had he reported it, a significant decrease based on length of duty.
So
you asked the question, how come? And
the reason how come is that there was a certain standard used for including or
excluding cancers from the analysis. In
order for a cancer to be included in the analysis, it had to have occurred 15
years after the duty tour ended. And in
point of fact, if you look at — as I did a few years ago — the occurrence of
skin cancers in veterans that had no dioxin body burden, non-detect levels,
what you found was that you didn’t find any cancers in the first ten years;
years 11 to 15, you found two; 16 to 20, you found 12; 21 to 25, you found two;
and 25 — 26 to 30, you found one.
What
that meant was that there was a significant peak 20 years after the duty tour
began; 16 to 20 years after the duty tour began that was clearly not associated
with dioxin because there was no dioxin measured in these veterans. The practice that was used by Dr. Michalek
excluded 40 percent of the skin cancers from his analysis and you would assume
excluded them to a far greater degree in the category of longest tenured
servicemen.
Everybody
in that duty tour would not have counted in that segment with more than 3.6
years of service; would not have counted any cancers occurring 18.6 years after
the duty tour began. So there’s a
skewed result and all those cancers that were excluded by this method should’ve
been included. And I suspect that when
they are included, you’ll find the same kind of curve for basil and squamous
cell cancers as you do for the other cancers.
That’s the first comment.
M.
STOTO: Why don’t we — we’ll give
Dr. Michalek a chance to respond to that one first if that’s ...
G.
KAYAJANIAN: Sure, that’s fine.
J.
MICHALEK: First of all, I want to
respond in writing to Dr. Kayajanian in detail later. Obviously, I’m not going to do it now. But I’ve read his document carefully and I can prepare a
point-by-point response in writing.
M.
STOTO: Why don’t — why don’t — why
don’t we do that? I mean, and also
include both his comments, which we have in writing already, and your response
as appendices to the minutes.
J.
MICHALEK: Very good.
M.
STOTO: And you’ll — and you’ll send
that?
J.
MICHALEK: Yes. I’d like to point out that the material that
Dr. Kayajanian is citing is from an older version of our paper where we were
using a 15-year lag in assessing cancer.
We subsequently dropped that approach and so these exclusions that
you’re talking about do not occur in our most recent version of the paper. Secondly, in the most recent version of the
paper, the basil and squamous cell incidence does increase with years in the
region as opposed to the numbers you’re citing just now. But rather than get into a point-by-point
rebuttal right now, I want to tell you that I will respond in writing to these
— to these points very carefully.
G.
KAYAJANIAN: What I would sort of
ask is that you also deal with the issue of counting cancers from the beginning
of the duty tour as opposed to the end of the duty tour.
J.
MICHALEK: The latest version of the
paper doesn’t count cancer from the duty tour at all. It counts cancers from the beginning of medical follow-up which
occurred at baseline in 1982. So the
material you’re citing is old versions of an article we wrote many months
ago. The most recent version is far
different from the document that you’re citing.
G.
KAYAJANIAN: I understood the paper
was presented at the 2004 Berlin conference.
J.
MICHALEK: It was presented at
“Dioxin 2004.” The material presented
at 2004 reflects the most recent version of the paper, meaning that the period
at risk is measured from the medical follow-up of the study which began in
1982, not from tour.
M.
STOTO: Let me — let me see if any
Committee members have any comments on this?
Questions? Okay. Let’s go on to the next one then.
G.
KAYAJANIAN: The second paper deals
with veterans with metabolic syndrome. And there’s a multi-variate relative
risk presented for coronary heart disease, cardiovascular disease deaths and
for total disease deaths. And what —
what’s reported in the slide set given then is that the comparison group has a
multi-variate relative risk of 2.1 with a confidence interval — 95 percent
confidence interval from 0.7 to 6.7.
The
Ranch Hand group has a multi-variate relative risk of 0.5, one-quarter of the
comparison group, with a 95 percent confidence interval range of 0.1 to
1.8. What that means is that the
comparison group and the Ranch Hand group are significant — show a significant
difference: 2.1 is above the 95 percent
confidence interval for the Ranch Handers and the Ranch Hand value of 0.5 is
below the 95 confidence interval for the comparison group.
What,
I mean, that finding wasn’t drawn from — by Dr. Michalek and his colleagues in
the paper that accompanied the slide set.
And I guess the suggestion that I would have is that one look more
carefully at the comparison and Ranch Hand groups, dividing them, say, into the
seven exposure categories that I used in my 2001 paper, and see whether these
values drop sharply within the comparison group as you go from non-detect to,
say, 8 to 10 parts per trillion.
This
is the same kind of pattern that I saw for prostate cancers in Black men where
you’ve got a very, very sharp drop in incidence as you went from the lowest to
the highest exposure groups. The same
observations that I cited for cardio — for chronic heart disease apply also for
cardiovascular disease: a significant
difference in the two groups. And I
would suggest the same process be used to analyze the difference.
In
the case of all-cause mortality, you have a multi-variate relative risk for the
comparison group of 1.9 with a range of 1.1 to 3.4. And for the Ranch Handers, 1.1 with a range of 0.5 to 2. So the Ranch Handers aren’t significantly —
don’t show this effect to a significantly reduced degree, but it’s close.
And
I would suggest you try to find out whether it’s real, whether it really might
be different by doing the same kind of analysis, breaking the comparison and
Ranch Hand groups down into — I did seven, but you’re welcome to use whatever
number of dioxin levels you want — to see whether as you increase the dioxin
diagnosis, you reduce this effect: very
simple, very straightforward, can be done, I think, rather easily. That’s it.
M.
STOTO: Okay. Thank you very much. Joel, do you want to respond?
J.
MICHALEK: Once again, we’ll respond
in writing. The relative risk that Dr.
Kayajanian referred to are those relating the development of metabolic syndrome
to cardiovascular death among comparisons and then separately among Ranch
Hands. The point is that we see the
expected pattern among comparisons; that is that those that are developing metabolic
syndrome are at a much higher risk of cardiovascular death than those that
don’t.
That’s
what you would expect to see and we see it in the comparisons. We do not see it in the Ranch Hand
veterans. That’s the point of the
paper; that there is what we call a “three-factor interaction” in the data and
that’s what he’s pointing out. He’s
asking further that we study that interaction as it may relate to dioxin and
that has not yet been done. And I will
explain all of that in my rebuttal.
G.
KAYAJANIAN: Thank you for your
time.
M.
STOTO: Okay. Thank you.
Other comments or questions from the Committee about that?
G.
KAYAJANIAN: You were — you were
right.
M.
STOTO: I mean, we have — we have
something in writing from you. Is that
the same as what you were just addressing now?
I just want to make sure.
G.
KAYAJANIAN: Yeah. I sent two letters and there was a one-page
addendum that I guess didn’t get sent to Joel by fax in late September.
M.
STOTO: Okay.
G.
KAYAJANIAN: And to — completely to
Dr. Schechtman a couple of weeks back when I asked for time.
M.
STOTO: I just want to make sure the
record is complete.
G.
KAYAJANIAN: There’s a written
record in ...
M.
STOTO: So if you don’t have it ...
RECORDER: I just want to make sure that what’s in the
“Public Comment Section” is what you want appended to the minutes?
G.
KAYAJANIAN: I’ll provide you with
...
M.
STOTO: He’ll check that now, plus
Dr. Michalek’s response.
G.
KAYAJANIAN: It was phrased
differently and it ...
M.
STOTO: But the content is ...
G.
KAYAJANIAN: The content’s the
same. It was phrased differently; it
was presented differently here, but it’s the same. The argument’s there; the argument’s on there. Thank you.
M.
STOTO: Okay. Thank you.
Rick, would you like to make a comment?
R.
WEIDMAN: Very quickly, Mr.
Chairman, first of all, I would like to again thank you for all of your hard
work and that of all of your Committee members for trying to make this study as
relevant as possible. As you come into
the home stretch of three more meetings before the end, at least as we know it
now, I would remind all of the members of the Advisory Committee as well as our
good friends, Dr. Michalek and those at the Air Force, as well as the
contractors that work closely with them, that the judgment on the final report
of the Ranch Hand project, it will be on the scientific validity. But it’s going to be read by many more
people other than scientists.
It
is, in fact, a final report that will be read by many lay persons and
policymakers, both in the Congress, and in the Administration and in the
general veterans community. It will
also, I can assure you, be read with great interest by our friends in Vietnam
and the People’s Republic government.
So it will have a very wide audience.
And the more you include, as an example as Dr. Trewyn suggested in the
epidemiological area, other confounders, the more highly regarded and the more
accepted that the report will be.
And
what I’m suggesting is that you be inclusive.
I would point out that the Institute of Medicine — the panel in 2001,
David? — or it was 2001, I believe, accepted 600 published studies,
peer-reviewed studies on PCBs that we submitted to them as part of their
report. Because the 1991 law — not your
original protocol that was developed from ‘78 to ‘82 for the Ranch Hand Study —
but the law, the 1991 law which is still in effect which is the broad context
within which Ranch Hand operates as well as all other activities pertaining to
toxins to which American service personnel were exposed in Vietnam states
herbicides and other toxic substances to which service persons were exposed.
And
that’s why under that rubric, it is why IOM accepted those PCB studies. So the confounders and inclusive information
on the broad — in the broad context is important to remember and not to limit
it just to Agent Orange. And we would
strongly urge you to look at it from that point of view as you move forward.
You
do not want to be lumped into the same category as the Gulf War case studies
done under the supervision of Bernard Rosker, which frankly, most people in the
— in the veterans community and on the Hill regard as a colossal waste of $180
million that was virtually useless in terms of being able to discover any
connection between exposures that might’ve occurred during Gulf War — the first
Gulf War — and deleterious health conditions that those service members are
experiencing today.
And
there is much more careful work that has been done. There’s been tremendous work by this Advisory Committee and a —
and a real effort to try and make sure that this is an intellectually and
otherwise honest report. And all I’m
saying is as you go into the final stretch, that you be as inclusive as possible
about confounders and other conditions.
And in the interest, not give into the temptation in the interest of
speed and/or brevity, not include things that would make the report stronger
and more widely regarded as a definitive document. And that is — that is — I would urge on behalf of Vietnam
Veterans of America and our national president, Thomas Corey. Thank you for your time, Mr. Chairman.
M.
STOTO: Okay. Thank you very much. You raise some interesting points
there. But I think that the discussion
that we had about including the other material on cancer in the — just before
the break is an example of the kind of thing that needs to be done to make this
report really serve its purpose best.
So I think that we should be open to the possibility of doing that
wherever that makes sense to do.
The
second thing is that you raised a — you touched upon the question about what’s
the purpose of the study and that’s going to come up again when we — I just
want to flag it — when we discuss the executive summary and the conclusions. So we may ask you to say a little more about
that at that time
R.
WEIDMAN: Thank you, sir.
M.
STOTO: I have one more thing I
wanted to say. Oh yeah, the other — the
other thing that this raised in my mind is that this is the final study in this
series. But it really is the study of
the 2002 exam, not an overall summary of the whole Ranch Hand Study. And I don’t know whether there are any plans
to do that or that may not be on the issue of, you know, today’s issue. But I think that’s something that we, at
some point, need to consider. Does
anyone want to respond to any of those things?
R.
WEIDMAN: If I may comment, Mr.
Chairman? The only thing I can say is
on Capitol Hill and in the veterans community, this report will be regarded as
that. Whether you all regard it and
structure it as that or not is that it will be the final statement on which the
entire process over the last 22 years will be — or actually more than that; I
had all my hair when you started this.
J.
MICHALEK: This — yeah.
R.
WEIDMAN: But the whole process will
be judged based on this report, I believe, sir — fairly or unfairly.
M.
STOTO: Yeah.
J.
MICHALEK: Well, Mike, just to
amplify what you — I mean, to elaborate on what you just said, the — it’s true
that most of the analyses in the big report you’re looking at right now are
based on what happened at Scripps Clinic or what was observed at Scripps
Clinic. However, the cardiovascular,
cancer and diabetes information is historical.
I mean, it’s a medical record review — medically record — medically
verified outcomes from 30 years of medical follow-up.
So
those analyses include all findings collected since Vietnam and that should be
highlighted in whatever communication comes out of this report; that there are
areas in the — in the report that Rick just pointed out that should be
highlighted as a — as longitudinal over the entire health history of these
men. And, but the rest of it is
strictly what happened at Scripps Clinic in 2002 and 2003.
M.
STOTO: Well, I mean, I think that
that’s a point that needs to be made in the conclusion in Chapter 21, and the
executive summary and so on. But it
still does leave open this question about whether it makes sense and it is
possible to do an overall wrap-up study.
Paul had a comment.
P.
CAMACHO: No, I had nothing.
M.
STOTO: Oh, Jay, go ahead.
J.
MINER: Dr. Miner, again. Yes, the reports pretty much have been
directed to reporting the findings at each Scripps Clinic exam with a few
exceptions that Dr. Michalek has just mentioned. So in light of that, and I think based on some of the comments
from the Committee here, that the Air Force is actually going to do a
longitudinal overview, which is supposed to incorporate all of the findings of
all of our physical exams and all of our papers that are published, and
discussed and so forth. And so that is
on contract.
M.
BLANCAS: Being negotiated.
J.
MINER: Oh, I’m sorry, being
negotiated right now with SAIC. So we
hope to have an overview that is readable, and means something and doesn’t just
include — not to beat a dead horse to death here; I guess that’s a veterinary
joke — but not just our findings on dioxin, but any others that we have done.
R.
TREWYN: What’s the time-line on
that? Any idea? I mean, I know it’s not negotiated yet, but I
guess is that something that the outcome of that would be anticipated to be
done before this group wraps up its life?
J.
MINER: Yes.
J.
ROBINSON: Well, the study, you
know, the last day on record is 30 September ‘06, so ...
J.
MINER: We have two years ...
J.
ROBINSON: So we have two years.
J.
MINER: ... to do this report, yes.
J.
ROBINSON: And two years of time as
well.
J.
MINER: Still involved, I hope. Absolutely.
J.
ROBINSON: So next year is the last
year.
J.
MINER: And the second comment, I’d
like the ...
M.
STOTO: I want — I want you to ask
that question on the mike, Paul.
P.
CAMACHO: Oh. Oh.
J.
MINER: Okay.
P.
CAMACHO: So the question is, is
this Committee connected to this summary study that’s now being negotiated?
J.
MINER: I certainly hope so,
yes. I mean, it’s up to you guys.
P.
CAMACHO: Well, I don’t know who
makes — who makes that decision?
M.
STOTO: Well, why don’t we say that
I think the Committee feels that it would very much like to be involved with
the review of this.
J.
MINER: And we certainly would like
to have you involved with that.
P.
CAMACHO: That’s — we’d like to be
involved, but ...
J.
MINER: A second ...
M.
STOTO: I mean, I — all we can speak
for is ourselves, I think, in this.
R.
TREWYN: It’s if Len will invite us
back again, which he may not want to.
J.
MINER: The Congressional mandate in
1991 perhaps has been broadened, but what was the title of that — the Agent
Orange Act of 1991 initially or no?
R.
TREWYN: I believe it was phenoxyherbicides,
yada-yada-yada. It was — it was broader
than Orange.
J.
MINER: But the title of the book
that you all produced was Veterans and Agent Orange: Health Effects and Herbicides Used In
Vietnam?
M.
STOTO: Let’s come back to this —
the purpose when we review this next chapter.
P.
CAMACHO: There’s also — the word
“Agent Orange” was the compromise word because Agent Orange was the largest of
all of the different forms of that phenoxyherbicide that was used. So it came to be, but it was jargon that
included, in my — to my knowledge, included white, and blue and various forms
which were really just a concoction, the recipe that you used on this barrel
for this mission at this time. And it
was based on what was there and if they needed — if they needed — had more of
this, then they threw in that.
So
it was rather like sorceress/apprentice mix when they loaded the planes
up. I mean, this wasn’t scientifically
done. They just started dumping barrels
and putting it into the plane base. It
wasn’t all that scientifically done.
Once the barrels were shipped, they opened the barrels, they loaded it
up. But they loaded it up into
combinations as to what they had on hand at the base.
J.
MINER: Well, the only thing that
they couldn’t do was mix the water solubles with the Agent Orange because it
would gum up the spray nozzles. But
otherwise, what was there was used.
M.
STOTO: Okay. Let’s move on to the review of Chapter 21 if
we could.
R.
WEIDMAN: Thank you, Mr. Chairman.
M.
STOTO: Thank you for your — for
your comments and for the responses from the Air Force. We also thank you, Dr. Kayajanian. I don’t think I did that — mentioned that.
M.
STOTO: Now for Chapter 21, I didn’t
assign an individual to review it, but I asked that each person who reviewed
certain sections pay special attention to their corresponding parts of
this. I — and so I propose that we just
sort of go through this page-by-page and then see if there are comments that
need to be — or maybe we should do section-by-section. So did anybody have comments about the
introduction section? This is Section
2.1. Do people have their copies with
them? David, did you have a ...
D.
JOHNSON: Minor comment on line
40. I thought, “Throughout this report,
dioxin levels,” is that serum dioxin?
They’re all serum dioxin? Is
that correct?
J.
MICHALEK: What line is that?
J.
ROBINSON: 40.
D.
JOHNSON: 40. Serum dioxin?
M.
STOTO: Turn on your mike, please.
J.
MICHALEK: It should be serum
dioxin, yes.
D.
JOHNSON: And then down on line 53,
it says, “The use of dioxin as a surrogate,” that’s a little — again, that —
you might want to say “use of serum dioxin levels as a surrogate.”
J.
MICHALEK: Yes.
D.
JOHNSON: That was — that was the
extent of my comments.
M.
STOTO: Yeah. Now that — the last bit of that sentence is
that whether it “can be attributed to an exposure to Agent — to Herbicide
Orange,” in fact, is the fundamental point that’s come up a couple of times
here. The purpose of the study
essentially, that’s not covered in the conclusion although it is in the
executive summary. And so I propose
that we have that discussion when we talk about the executive summary unless
people thinks that this needs to be in the conclusions?
J.
MICHALEK: I think personally both
chapters should be concordant. They
should not disagree. I mean, the
chapters should not contradict each other.
M.
STOTO: Well, it’s not so much that
they contradict each other. It’s a —
it’s a question of that the purpose of the study is not addressed here in this
— in the conclusions chapter.
J.
MICHALEK: This is — since this is
the chapter that many people will read first, I think you’re right. It should be mentioned at least what the
purpose of the study is ...
M.
STOTO: Yeah.
J.
MICHALEK: ... as it would be in any
clinical trial.
D.
JOHNSON: Well, I think the purpose
needs to be not what you can go back, and look historically and say, “Well,
this is what it really meant.” At this
point, it has to be what was done.
M.
STOTO: Yeah, so ...
D.
JOHNSON: So it has to — so you
can’t go back and say, “Well look, this line back 25 years ago said it really
included this, this and this.” That
wouldn’t be very helpful to put that in here right now, but it needs ...
P.
CAMACHO: But I think — I think you
can get around that by saying, look, in the very first paragraph or first two
paragraphs what happened after — what came about. You’re missing, for me, a paragraph that says, well, there were
adverse effects and there was a great political, social discussion about this
to Congress about the health of our soldiers.
Therefore,
this was this Congressional mandate, and that mandate was turned over
eventually to the Air Force, and the Air Force protocol narrowed things down to
this, and this is what we were charged with looking at. And that way, I think you cover your
butt. We’ve — quite frank on this
because people are going to look at this.
This left everything out.
Remember, civilians are going to look at this; civilians with 25 years
of anxiety or — and discussion about this.
In
Massachusetts, we just did a quick thing back in the early ‘80s on children and
deformed — deformities that they may have had, blah-blah-blah. The emotion was fantastic. I did — I put together for Frannie Dorris,
the state senator I worked with, 13 hearings.
Each one of those 13 hearings around the state of Massachusetts, the
Commonwealth of Massachusetts, was packed with people and people still call and
have references to that.
So
to leave that out is really to, I think, to expose yourself to criticism to
where people want to be acknowledged.
And there’s a whole constituency that wants to be acknowledged. Because right here, you’d say, “This came —
dropped out of the sky.” Whoever
thought of doing some exposure?
M.
STOTO: Before you — before you
respond, can I add something to that?
And ...
P.
CAMACHO: And then you narrow down,
sir ...
M.
STOTO: ... I — I’m — I just — what
...
P.
CAMACHO: ... you know, to say this
is what we ...
M.
STOTO: What I’m going to say is ...
P.
CAMACHO: ... were charged with
looking at.
M.
STOTO: ... consistent with both
what Paul and David said. First of all,
there’s in the executive summary, there is, in fact, a statement of the purpose
in the first — in the first paragraph, which I think is incorrect on
epidemiological grounds. But what I
would propose that we do is that we have a paragraph on this in the summary and
conclusions and that it begins with the context that, you know, at the — at the
time in the — in the — in the — when was it, the late ‘70s really when the
study was started? — there was concern about the health effects in Vietnam
veterans of a variety of things.
And
one of the studies that was launched at that time to address this issue was the
Ranch Hand Study. And the reason if I
recall because I was — I was — I was even younger than Rick was at the time —
was to study the — was that the Ranch Hand people had this high exposure to
herbicides, in particular Agent Orange, that was thought to be — would make it
a good candidate for an epidemiological study.
And
so in that context and for that reason, the purpose of this study is — and then
quote the protocol exactly because the, you know, the context is what it
is. But the protocol says what the
purpose of the study is and it says it clearly. And I think we need to stick with that. So, and I think that’s what you were saying.
D.
JOHNSON: Well, I — yeah. You just — you can’t say the purpose of the
study is to do a lot of things it didn’t do, which is, I mean ...
M.
STOTO: Right.
D.
JOHNSON: ... the purpose of the
study was — well, what did — what did the study look at and this is what — this
is what ...
M.
STOTO: Yeah.
D.
JOHNSON: ... this analysis — the
purpose of this analysis was.
P.
CAMACHO: It’s sort of a — it’s sort
of a funnel that you come down to and it was — it was decided.
M.
STOTO: And one other thing I would
— I would add is that, in fact, the serum dioxin measurement technique was
invented after the study was started, which allowed for certain analyses that
were consistent with the protocol, but more particularly, envisioned at the
time that the — that the protocol was put together. And I mean, that’s been discussed and does that make ...
J.
MICHALEK: Yes, it does. Dr. Camacho mentioned a Congressional
mandate. All I have is a letter from the Secretary — I mean, the Domestic
Policy Council, the President to the Department of Defense to launch the
study. I do not have any documentation
on a Congressional mandate to fund the study.
Do you have such a thing?
P.
CAMACHO: Well, we — I can look
around and search around for it, but there’s a lot of Congressional
hearings. What I’m referring — really
referring to is a whole network, a Hill series of Congressional hearings and
political action that was all surrounded by this. And it did get down in a funnel effect that eventually came
out. The — there were several studies
launched and the Air Force Study was the one that survived, let’s say, and the
protocol came to what you read. But there
was much more of a broader interest, but we are charged with looking at what we
had come down to. But I’m just saying
put a context on it and bring us down to what the Air Force Health Study looked
at.
J.
MICHALEK: I understand. I was just looking for documentation; that’s
all.
P.
CAMACHO: I’ll search for it.
J.
MICHALEK: Okay.
J.
MINER: You know, and if you
remember too what context it actually was in, it was the Agent Orange Working
Group ...
J.
MICHALEK: Yes.
J.
MINER: ... which was put
together. It was a government-wide
body, heads of — heads of DVA and yada-yada.
J.
MICHALEK: CDC, NIH.
J.
MINER: And CDC ...
J.
MICHALEK: Yeah.
J.
MINER: ... and so forth. They were the ones that actually were
charged with coming up with a plan to look at the problem with the
veterans. And they recommended to the
President and then the President gave us the charter to do it. We did not receive, as near as I can tell, a
directive from Congress to the Department of Defense to do this. It came — Agent Orange Working Group to the
White House and then to DoD.
J.
MICHALEK: Well, I understand. What I was looking for was the — was the
legislation or whatever it was to put the line item in the federal budget for
our program. There must be something in
writing to put that line item in there to fund the study from the very
beginning.
M.
STOTO: And that just could — it
could be just the appropriations bills.
J.
MICHALEK: Yeah.
J.
MINER: I have — I do have the ...
J.
MICHALEK: Do you have such a thing?
J.
MINER: Yeah, I do.
J.
MICHALEK: Great. I didn’t know that; I didn’t see it.
J.
MINER: But it was done — it was
done on the Air Force side of the house to fund the study. The initial funding was taken out of — out
of — out of — out of Defense Health Programs; it was Program 8 money. And then
the Air Force Systems Command commander, it found for the — made a program
objective memorandum for the budget to be included as a line item in the — in
the DoD budget. And it was — it was —
it was ...
J.
MICHALEK: Well, I think that
history should be in there in a few sentences; it’s just important.
J.
MINER: Well, we have that.
J.
MICHALEK: But it’s not in the
report; it doesn’t say that in here.
M.
STOTO: Yeah.
J.
MINER: No.
M.
STOTO: The other point I would add
is that this probably should be in the introduction of the report in more
detail. Yeah.
P.
CAMACHO: Put it in the
introduction, in the summary and in the conclusions.
M.
STOTO: We don’t have — we don’t
have Chapter 1 here. I don’t know
whether it’s there or not, but I don’t recall that it is. Okay.
Thank you. So let’s move back to
the discussion of the chapter itself.
Any comments on Section 2, “Study Performance Aspects?” I had one comment; is that on page 2, line
64, you talk about “passive refusals” and “hostile refusals.” It probably would make sense to define those
terms
P.
CAMACHO: Or at least make the — at
least make the reference because we went through this the last meeting. At least make a reference where somebody can
look up the difference between the passive, and hostile and ...
M.
STOTO: Yeah.
P.
CAMACHO: ... all the refusal
pieces.
M.
STOTO: Okay.
P.
CAMACHO: In general, I would’ve
said that there probably should’ve been more “see,” you know, “see Chapter 8,
Appendix this” or “Appendix this” in parenthesis a lot more. Because the lay person going through this —
where — and if you just spell it out to them, they’ll know and then, you know,
they’ll get that. So it’s more — it’s
like more of a citation problem.
R.
TREWYN: So actually, a social
scientist can add value here. This is
good, Paul.
M.
STOTO: Okay. Jay, go ahead.
P.
CAMACHO: Thank you. That was a good — just when you thought
there was no more room ...
J.
MINER: Yeah. Just one more follow-up on the — on a little
bit of a history of the start of the study because it was General Dettinger who
was testifying in front of a Congressional committee and they asked him had any
of the Ranch Handers been harmed by their spraying activities in Vietnam? So he, General Dettinger, called down to the
epi folks and said, “Well, let’s send a questionnaire out to all the Ranch Hand
people and ask them if they — if they’re sick or not.” And of course in the ways of
epidemiologists, they said, “What are you thinking?” So that’s kind of how the epi division got involved with working
on the protocol and then the protocol got vetted through a whole number of
places.
M.
STOTO: That’s when I was involved a
little bit in that.
J.
MINER: Yes.
M.
STOTO: Okay. Thank you.
R.
WEIDMAN: Mr. Chairman, another
historical note if I may? The Air Force
at that time was maintaining they did not know and had no record of who was
exposed. And it was only some four
years later that it came to light that they had the herbs tapes all along. And once that came — became public, then it
became a different situation. But I
must say that it was in the context of much organizing in the veterans
community and friends on the Hill pressing with the belief that there may, in
fact, be some deleterious health effects of exposure to Agent Orange.
And
that culminated in — and it’s even cited in the protocol — an event that
happened at the White House during Vietnam Veteran’s Week in 1979. The resolution that created and called on
President Carter to declare that week Vietnam Veteran’s Week was the first
action of the Vietnam Veterans in Congress Caucus which was organized in the
fall of 1978.
And
in 1979, David Bonyer led the way in introducing, but with all of the Vietnam
veterans, Congress and the caucus behind him, and Senator John Hines on the
senator’s — on the Senate side, the Vietnam Veterans Comprehensive Readjustment
Act of 1979. You all are familiar with
the vet centers; that was one of the provisions in there was to create the vet
centers as an autonomous entity within the VA.
But another provision dealt with deleterious health effects of Agent
Orange.
At
the same time on a concurrent track, the Air Force moved forward through
executive action. And Jay, as you’re
precisely correctly as is the colonel, is it was done by executive action. But it was done in the context of a growing
movement and strong sentiment on the Hill that something had to be done. Like almost everything else, it swims in a
sea of the sociopolitical context here in Washington as apotheosis and a
central crux of what is being felt out in the nation. Thank you for just a moment of add to that historical context,
sir.
M.
STOTO: Okay. So that’ll be reflected appropriately in the
introduction and ...
J.
MINER: A point of
clarification. I would like to strongly
say that the — no; no, that the Air Force did not have the herbs tapes.
M.
STOTO: Thank you. Back to the report. Other questions, comments on Section 2?
D.
JOHNSON: I’m just wondering did I
hear this right? It sounded to me
historically that Agent Orange was a key focus ...
M.
STOTO: I think — I think ...
D.
JOHNSON: ... is what I just heard.
M.
STOTO: Well ...
P.
CAMACHO: It — Agent Orange was the
most used of several products, if you want to call it that, and it was the most
common. It caught the news, you know,
and I mean it started it. It’s what the
media picked up on and they just, for some reason, somebody said it’s “Orange”
or it sounded good.
R.
TREWYN: Eleven million gallons out
of 19 million or something like that.
P.
CAMACHO: Or Orange.
M.
STOTO: Okay. Section 21.2, any other comments? Section 21.3 is “Statistical Models;” I had
two comments. One is that we made — I
made a recommendation last time that there — there’d be some notation that, in
fact, these were the models that are being used for longitudinal purposes, but
other models have been used in different settings and in the published
literature. And that probably should be
mentioned briefly here as well.
R.
TREWYN: And I would just add to
that based on our earlier discussion because ...
M.
STOTO: Right.
R.
TREWYN: ... the neoplasia stuff
will be expanded, that at least some reference. Again, it doesn’t have to be lengthy, but to those is very
appropriate.
M.
STOTO: That’s a good example of it,
yeah. The other — the other point I
make is that — and this actually opens up something bigger — but I had —
there’s a lot of tables here and this is not what I had thought they were going
to be in terms of tables. What I
thought it was going to be was the summary tables from each chapter.
J.
MICHALEK: What chapter are you
looking at, 21?
M.
STOTO: Chapter 21.
J.
MICHALEK: Mine doesn’t have any
tables.
M.
STOTO: Well, but ...
J.
MICHALEK: Oh, Appendix G.
M.
STOTO: G?
J.
MICHALEK: Appendix tables.
M.
STOTO: It’s 100-and — over — well
over 150 pages of them. And what I
guess what I had thought we had — we had talked about was that the summary
table from each chapter, the one that basically only shows the significant
results, be what’s included in this — in this conclusions chapter. And then and if that’s so, that means the
Statistical Models Section here needs to explain that kind of table and why,
how that was chosen and so on. So that’s
really two points. Is that — Ron agrees
with that or do you want to comment on that?
J.
MICHALEK: So what you’re suggesting
is a change of the appendix for this chapter to those tables — I mean, only
those results that are significant? Is
that it?
M.
STOTO: Well, for instance, in
Chapter 18, that would be Table 18.47 — 18-47 in the summary table, right.
J.
MICHALEK: I just want to look at
it. I understand that.
M.
STOTO: Right. And in Chapter 20, it would be 20-19.
J.
MICHALEK: Those tables take up a
lot less space, so ...
M.
STOTO: They sure do.
J.
MICHALEK: ... that’s great. Yes.
M.
STOTO: And it wouldn’t involve
redoing anything.
J.
MICHALEK: No.
M.
STOTO: But you’re just taking a
different ...
J.
MICHALEK: Cut and paste those
tables in the appendix instead of the other ones. Right.
M.
STOTO: Okay. Any other comments on Section 21.3? Okay.
Let’s move on to the results — “Clinical Results,” Section 21.4,
beginning with point — “General Health Assessment.”
P.
CAMACHO: In the first paragraph,
you need to make changes that you’re going to make in the appendix.
M.
STOTO: Say it again in the mike.
P.
CAMACHO: You have to make a few
changes there under the main introduction that reflects what you’re going to
change in the appendix.
M.
STOTO: Reverse the tables; that’s
right.
P.
CAMACHO: Yeah.
M.
STOTO: Okay. Comments about the “General Health
Assessment?” “Cancer?”
R.
TREWYN: Just the same as
before. Once these other parameters are
included, then that has to obviously go in here as well, so the summary
relevance.
M.
STOTO: Okay. And I guess that ...
J.
MICHALEK: What you mean is to edit
this chapter to include published and unpublished results found by our group
in-house in addition to what’s in this big report? Is that right?
R.
TREWYN: Yes.
M.
STOTO: Basically, I think that what
we decided earlier is that the — whatever chapter, what’s the neoplasia
chapter?
R.
TREWYN: Ten.
M.
STOTO: Chapter 10 would be modified
so that the epi section would have a summary of these published and unpublished
studies. And there would be a reference
to that in the conclusions chapter — conclusions section that basically puts
the results of this current analysis in context. And that whatever changes you make to the conclusions should be
made to this as well.
J.
MICHALEK: Be aware this chain of
...
M.
STOTO: Right.
J.
MICHALEK: ... of added ...
P.
CAMACHO: Yeah, chain of events.
J.
MICHALEK: There’s a cascade, yes.
M.
STOTO: So basically, to that ...
J.
MICHALEK: We know that.
M.
STOTO: ... to that end, every, any
conclusion, any suggestion we made today or previously about the conclusions
would impact this. Right. Okay.
“Neurology?” Any comments on
“Neurology?” Turn on your mike, please.
R.
SILLS: The conclusions pretty much
capture the summary findings in the chapter.
M.
STOTO: Okay.
J.
MICHALEK: Well, since you’ve raised
the issue of published findings outside the big reports, there’s the 19 — or
year 2002 paper in Neurotoxicology showing the increased risk of
peripheral neuropathy. That paper’s
already mentioned in the introduction to the neuro chapter, but is being —
currently being reviewed by the IOM. In
fact, the IOM now has our database.
They’re reviewing not just the paper, but the data itself. Do you want that level of detail in here
about that?
M.
STOTO: I guess the question I would
ask is whether it impacts the interpretation of these results? I think that what the cancer story was that,
you know, some people would think that — would think differently about what
these results from the current analysis means given what we know from these
other studies. So if — I don’t know the
details of this particular one, but that’s the question I would ask. I mean, would people understand these
results differently if that was part of the context?
R.
TREWYN: And I would just like to
second that; that I think if from the publications that are out there that are
derived from the data that came out of this study, if — even if they aren’t
directly linked to the particular models that we’ve been utilizing all the
time, if they do influence the findings in whatever area, that should be added
as part of the conclusion, part of the result of this overall effort. I think then it becomes very relevant.
J.
MICHALEK: I understand that.
M.
STOTO: Okay. That’s — Robert?
R.
SILLS: So Joel, were there
additional findings in the paper that you’re talking about here?
J.
MICHALEK: Well, the models that
were used in that paper are similar, but not quite the same of what’s used in
the big report. There were more
detailed adjustments for diabetes, for example; exclusions for the use of —
medication use; consideration with and without analyses; analyses with adjustment,
including veterans who were taking certain meds and excluding veterans taking
certain meds.
Those
analyses were — most of our articles provide analyses that are carried out with
greater detail and a level of analysis than what’s in the big report. And the findings in that paper were statistically
significant and were initially dismissed by the IOM are now being
reconsidered. So it might be
interesting or know — to the reader to know that; that there’s an ongoing
critique, critical review by the IOM of not only our reports, but our data. In other words, this is still a point of
discussion in the IOM on these issues.
M.
STOTO: Do those — do those other
analyses, are they consistent with the findings here or do you find different
results?
J.
MICHALEK: They are consistent in
“Neurology,” yes.
M.
STOTO: So what you might say then
is to say that we’ve looked at this in other — in other ways ...
J.
MICHALEK: Ways.
M.
STOTO: ... and have found
essentially the same results.
J.
MICHALEK: Yeah.
M.
STOTO: Those analyses are the — the
IOM is looking at these analyses as well.
J.
MICHALEK: Okay.
M.
STOTO: Does that — does that — does
that make sense?
R.
SILLS: Yeah. I think that’s important because in the
neurology section, there are two places where the IOM evaluations are referenced
in the text. And it would be good to
have the new findings or the — or the new conclusions that are going to be
drawn from the IOM reevaluation to be included in the text.
M.
STOTO: Yeah. I mean, I take seriously the comments that a
number have made: that this thing is
going to be read; this will be the only thing that people read in — from the
whole Ranch Hand Study. So I think that
the extent that we can reflect these ideas in there, that would be important.
R.
SILLS: The only other point I want
to make is when I read the conclusions versus the executive summary, it’s
pretty similar. And I’m trying to
figure out if we should try and differentiate them or, for example, executive
summary, have it be clearer in terms of risk and no risk in terms of the
various endpoints we’re looking at.
M.
STOTO: I mean, I had — I had a
question like that about the executive summary too, but let’s deal with the
conclusions chapter first and then come to that. Is that okay? Yeah. Okay.
More on “Neurology?” Anything on
“Psychology?” Okay. Anything on “Gastrointestinal?” Nothing.
Okay.
E.
HASSOUN: It’s consistent.
M.
STOTO: Turn on your mike, please.
E.
HASSOUN: Actually, it’s consistent
with the chapters that I have been reviewed.
M.
STOTO: Okay. Was it — did anything come up in the
discussion this morning that would mean a change here too?
E.
HASSOUN: No.
M.
STOTO: No? Okay.
“Dermatology?”
D.
JOHNSON: I think the comments were
made this morning about the conclusion would apply here too.
M.
STOTO: Okay.
J.
MICHALEK: I’d like to point out
that the document you’re looking at now does reflect the edits that we
made. If you look at line 237 to 244,
these — this is the text that Dr. — Colonel Robinson referred to earlier
today. And so you are seeing the very
latest thoughts we had on the acne in the enlisted ground crew; they’re given
right there on lines 237 to 244.
M.
STOTO: Okay, but the clarification
between acne and chloracne needs to be in here.
J.
MICHALEK: Still needs to be amplified,
yeah.
M.
STOTO: Okay. Good.
Thank you. “Cardiovascular,” any
comments on that? That was the one that
Sandy Leffingwell reviewed, I think, yeah.
Paul, go ahead.
P.
CAMACHO: The last — the — 28 — 68,
269, can we restate that or is that what you mean? “As the dioxin level increased, the percentage with abnormally
high blood pressure decreased.” I mean,
I’m — if I’m a civilian, I’m going to say, “Hey, it’s good for the blood
pressure.”
J.
MICHALEK: That’s another example of
the complications of the study. These
men, many of them are on anti-hypertensive medication. We know there’s an increased risk of
hypertension with increased dioxin from our in-house research. The straightforward analysis of blood
pressure is complicated because of the fact that they’re taking meds and so the
reader wouldn’t know that unless they were told. And so this is one small example of the level of complication of
the report; you put your finger on it right there. It should say, “However, many of these individuals were taking
anti-hypertensive medications.”
M.
STOTO: Right.
J.
MICHALEK: And how that affects the
result, I don’t know at this point. But
certainly, I think it should be mentioned.
Sixty-five percent of them, by the way, have a history of hypertension.
M.
STOTO: Okay. Robert?
R.
SILLS: I think wherever possible,
you know, I mean, it should be — some of these sentences should be expanded
since we know that, you know, that the Ranch Hand group, some of them were
taking drugs which would lower their blood pressure, you know, indicate that
information here. Because when I read
the sentence, you know, the first thing I would take away from this is dioxin,
you know, played a role in terms of decreasing the blood pressure.
J.
MICHALEK: This comment reflects
back to the chapter itself and has wider implications for the whole
report. We’re talking now about
material that was not included in the original statistical plan — the
consideration of extra meds being taken and possible confounding. The effect of possible other confounders is
mentioned in Chapter 7 as is the legacy of these statistical models. And this is just one example of that, I
think.
M.
STOTO: We’re not — we’re not asking
for new analyses here. We’re just
basically asking for comments that may — that many actually exist in the
chapters itself that will help somebody who only reads this chapter.
R.
TREWYN: Right. Because again, I think this is an issue
where because it says “conclusions,” you don’t just have this black and white
“here were the results” in a void; that there are ways of helping people
understand what the implications are.
And so just then putting some of these in a broader context so it reads
as a standalone and you can sort of make sense out of it; that it doesn’t have
these contradictions that people are going to say, “What in the hell was this
all about?”
P.
CAMACHO: You know, the civilian
version of what in an argument would be the conclusion and what you guys mean
medically as a conclusion are very different. I’m going to conclude, if I’m a civilian, that this — I ought to
take a little dioxin pill to lower my blood pressure. I’m sorry, but that’s what people on the outside are going to
think. And then they’re going to say,
“But what’s this about?” So you have to
say something there, reword that.
J.
MICHALEK: So ...
P.
CAMACHO: Or bring up ...
J.
MICHALEK: So your point is well
taken. We need to scrub the whole
report for these kinds of issues and make sure that we’ve got them covered,
like you say, with the — whatever information we’ve got.
M.
STOTO: Yeah. My sense is that you actually have done a
good job with that in the — in the main chapters, but the key thing is that
they get reflected in the conclusions.
The other thing along those lines is that the introduction probably
needs to say something about how this is an analysis of the latest round of
this study. Yeah, and, you know, I made
a comment about that with respect to the statistical models, but I — it really
is broader than that. And so, but you
know, in a situation like the cancer, and the hypertension and so on, if you
have other — and the neuro, peripheral neuropathy, if there are other things
that have been published that you can cite, they probably should be cited here
as ...
J.
MICHALEK: All right. Well, there you’ve put your finger on
another issue. I mean, maybe I’m giving
too much detail, but the Model 4 depends on the initial dose and we already
caveated the pharmacokinetic model in our estimate of the initial dose in
Chapter 7. Should that kind of
information be brought forward into this — into this chapter ...
M.
STOTO: Yeah. I mean, it’s ...
J.
MICHALEK: ... to warn the reader
about their initial dose estimate?
M.
STOTO: That’s right. I mean, if that — if that — if this finding
is based on something you have reason to think may not be the, you know, lead
to the most appropriate interpretation.
J.
MICHALEK: It’s not the latest
information.
M.
STOTO: Yeah.
J.
MICHALEK: The model we’re using,
the first-order model is not the latest information.
P.
CAMACHO: And a — and a general
statement about all the potential confounders ...
J.
MICHALEK: Yes.
P.
CAMACHO: ... here.
M.
STOTO: Okay.
J.
MICHALEK: Variable elimination
rates, and the biphysic model and dose-dependent model that’s not being
used. I mean, all this should be
mentioned at least and cited.
P.
CAMACHO: Especially tailored for
civilian understanding.
J.
MICHALEK: That’s another problem.
P.
CAMACHO: And that might be hard.
M.
STOTO: Well, I mean, I guess I
would say that for the — for this chapter, this is — this is a scientific
report. I think we need to think of
that issue for the executive summary.
J.
MICHALEK: The purpose of —
yeah. The executive summary is supposed
to be written in lay language.
M.
STOTO: Right. So, and I think that’s one of a number of
issues we’re going to have to deal with when we talk about the executive
summary, like the ones that one of you guys raised earlier. Okay.
E.
HASSOUN: And are you going to add something
about the hypertension in this section or ...
M.
STOTO: Well, I think that this
should — yeah.
E.
HASSOUN: Yeah. If you’re going to do that, then we have to
go back to the “Psychology Assessment” and we need to add something on page
21-5, line 193, “More Comparisons than Ranch Hands had high scores on the
SCL-90-R,” the same thing. We need to
justify for that, the symptoms.
M.
STOTO: Well, is there — is there
material in the chapter that clarifies?
E.
HASSOUN: Probably not; you’ll have
to go back.
J.
MICHALEK: Another point well taken;
that some of these apparently contradictory findings could be due to lack of
adjustment or something else. For
example, the medication used in blood pressure, there might be something
corresponding. It’s like that we don’t
know about that would explain why one group, why we’re seeing a pattern
opposite than what we expected. That’s
the problem with epidemiology; it’s basically an uncontrolled study. We do our best to control for confounders,
but there may be some that we missed.
That’s a so important point that needs to be mentioned again.
M.
STOTO: That’s a good point. Actually, so the statistical section,
Section 3, does talk about adjustments.
So maybe you could put something in there that says that, you know, we
adjusted for the stuff that we thought was relevant, but there could be some
unknown — okay.
J.
MICHALEK: Yes. That’s in Chapter 7, but at least a sentence
in Section 3 ...
M.
STOTO: Yeah.
J.
MICHALEK: ... if it’s not there
already.
M.
STOTO: Yeah. You have all this extra space now that we
took — with the short version of the tables, we can add a couple of sentences
here and there. Okay. Anything else on “Cardiovascular?”
J.
MICHALEK: Again, your point about
other published research would seem to be relevant to cardio. We’re seeing the significant increase in
risk of cardiovascular death among the enlisted ground crew. That’s outside the scope of the Scripps
data, which is what the subject of this report is, but I have to tell you that
it’s a finding and it’s highly significant.
It will be published soon.
Perhaps should we mention that?
Are you suggesting that we mention these other cardiovascular-related
findings that we have?
M.
STOTO: I think so; I would say
that, you know, other analyses have shown the same thing or they’ve shown a
different thing. I think that’s ...
J.
MICHALEK: It’s a puzzle, however,
because we see the increased risk in cardiovascular death. However, we see no increased risk of any
other cardiovascular endpoint at Scripps Clinic in the enlisted ground
crew. So we would present the — this
puzzle to the reader right up front. Is
that the idea?
P.
CAMACHO: Yeah. I think that’s safe.
M.
STOTO: I would — I would —
remember, this is a report about a particular analysis; that here’s what we
found in this analysis. But it would
not be honest to not say that there was some other results in some other ...
J.
MICHALEK: Okay.
M.
STOTO: I mean, it’s not — it’s not
the job here to kind of straighten that out.
J.
MICHALEK: It’s not; we’re just
going to communicate what we know.
M.
STOTO: Yeah.
J.
MICHALEK: Is that the idea?
J.
ROBINSON: Just a point of
clarification regarding that line 268, 269, Dr. Grubbs said it was adjusted for
medication.
P.
CAMACHO: This is the — oh, you guys
are talking about in the findings?
J.
ROBINSON: Pardon?
P.
CAMACHO: This was the second
draft. I’m looking at the second draft.
J.
ROBINSON: Oh, this was under the
“Cardiovascular Assessment” and the issue about “the percentage of participants
with abnormally high systolic blood pressure.”
P.
CAMACHO: Yeah, 268, 269. Right.
M.
STOTO: In other words, the answer
isn’t as simple as Joel said?
J.
ROBINSON: Right.
J.
MICHALEK: You know, there’s a
difference. Well, you were talking
about ...
P.
CAMACHO: All I’m saying is correct
it so that the average reader ...
J.
MICHALEK: Right.
P.
CAMACHO: Correct it enough so that
some — whatever you do, correct it so that people won’t be taken aback or put
it in some context.
M.
STOTO: Yeah, but they were talking
about having a statistical adjustment having been made, not adjusting the text.
J.
MICHALEK: And when you get to
statistical adjustments there, what Dr. Grubbs referred to is given by the stat
plan to do what’s called a “main effects model” with an adjustment by
covariate. There may be other effects
there that are missed with that approach, such as interactions. You may see things with exclusions. None of that was carried out in our big
report because this was a straightforward analysis; whereas, other more
exploratory analysis may uncover something that wasn’t seen in this
chapter. And all of that is already
said in Chapter 7, but perhaps a one-sentence reminder would be relevant.
M.
STOTO: Okay. Anything else on “Cardiovascular?” “Hematology?” Nothing on “Hematology?”
“Renal?” We’re marching through
the body here. “Endocrine System?” And how about “Immunology?” Okay.
Or “Pulmonary?”
D.
JOHNSON: Again, it’s almost the
identical conclusion; that there are some comments I made this morning.
M.
STOTO: So they get — they should be
carried over?
D.
JOHNSON: Yes.
M.
STOTO: Okay. The section on “Strengths and Limitations of
the Report?” Of course you can say it
...
P.
CAMACHO: Is it ...
M.
STOTO: ... if you turn your mike
on.
P.
CAMACHO: ... you know, given all
the little gasps of air, should we take Section 2 — 21.5 and actually put it
ahead of things?
M.
STOTO: That’s an interesting
thing. I mean, this is the —
scientifically, this often comes at the end.
But I think that in this context, it might actually make sense maybe
after the “Statistical Models,” but before the “Clinical Results.” Is that what you had in mind?
P.
CAMACHO: Yeah. Well, just — I’m just saying its place, this
is in this summary; that its place, the “Strengths and Limitations of the
Report,” that “Study “Performance,” you’ve got 2 — 21.2. And maybe you put it just before the
“Statistical Models” or just after the “Statistical Models,” before “Clinical
Results.” Should you move it before
“Clinical Results?”
R.
TREWYN: Well, and again, based on,
you know, there are going to be adjustments made regardless on it based — and
if we can summarize some of those prior to people doing the locked step through
each of the systems, the bodily systems, it may help; it really might
help. And I agree that quite often,
this is where it would belong. But it
might in fact, in this case, be better because then even by coming after the
“Statistical Models,” then some of those things, even some of the additional
statistical approaches utilized in some other studies can be — can be raised in
here and brought in. So it may, in
fact, help clarify as you — as you walk through each of these and then only
need a sentence here or there in each section.
M.
STOTO: Okay. I think — I think that makes sense. The other — the other comment I had about
that was the second paragraph applauding the Advisory Committee and things like
that. Of course, it’s true, but I’m not
sure I would call that a strength or a limitation; that might be more in the
way of an acknowledgment.
J.
MICHALEK: Sort of like an
acknowledgment paragraph instead of here?
M.
STOTO: Yeah.
J.
MICHALEK: Okay.
M.
STOTO: I actually realized I had a
comment when I — when I read the executive summary first; that that applies to
this as this whole thing as well. We
lay out the different models in the statistical section and then the results
are written up in a way that doesn’t make reference to those models anymore. And you have to go back and you can figure
out which ones you had in mind. And I
guess I thought it would be better to say, you know, when you found a result,
this was a Model 1 result; this was a Model 2 result and so on as opposed to
using these kind of euphemisms for those models. I don’t know whether others have ...
J.
MICHALEK: Actually again, you guys
highlighted an issue because we were trying to make this readable to someone
who could just pick it up and look at it and the same with the executive
summary.
M.
STOTO: But I mean, I don’t think
that that works.
J.
MICHALEK: No, it doesn’t.
M.
STOTO: I mean, that’s ...
J.
MICHALEK: But putting in models in
parenthesis after nearly every sentence would encumber the text and in a way
the reader maybe ...
M.
STOTO: Well, but the alternative is
that you’ve done that in a kind of a code that’s harder to interpret.
J.
MICHALEK: Yeah.
R.
TREWYN: Well, one of the things to
think about is if we wind up going to the approach, because right now the
conclusions and the executive summary look so much alike that you wonder what’s
the purpose. And if we really do
differentiate so that we’re considering this as more the scientific conclusions
for the somewhat, at least marginally knowledgeable reader, whereas, the
executive summary might be more for the lay public to take it into a — the
broad view. I don’t know.
But
at least if we — if we do come up with something that these aren’t just
replicating one another, which makes little sense to just have two things that
say the same thing, so if we can address those to two different audiences,
whichever the right approach is, that might help.
M.
STOTO: Yeah. I think that — I think that might help. And if we thought about this as the
scientific one, it may make sense to include those models. The other thing is that with the new
versions of the tables that we’re talking about, I think they say which model
it comes from, don’t they? Well, maybe
if that’s true and if we refer to the — maybe what we should do is to say in
each section, you know, when we talk about “Dermatology,” see table
dah-dah-dah.
J.
MICHALEK: Or see page
such-and-such.
P.
CAMACHO: Yeah.
R.
TREWYN: Yeah.
J.
MICHALEK: Yeah.
M.
STOTO: Well, I would say refer to
the table because the table ...
J.
MICHALEK: Oh, the table? Oh, okay.
R.
TREWYN: The summary table.
J.
MICHALEK: Oh, all right.
M.
STOTO: The summary table because
that then has that information. What I,
you know, what I guess what I didn’t like was statements like “contrasts of the
Ranch Hands with comparisons” or when “comparing categorized level of
dioxin.” I know that refers to Model 1
...
J.
MICHALEK: Three.
M.
STOTO: ... or Model 3 or so
on. But to just have it there, even
though it’s in English doesn’t really carry — doesn’t really make the report
readable. But if you had that, and you
refer to the table and the table said which model, that might — that might say
...
J.
MICHALEK: Okay.
M.
STOTO: ... serve the purpose. Does that — okay. Where have — did — have ...
P.
CAMACHO: We need to do the summary.
M.
STOTO: Okay. So we’re at the “Summary” now. Comments on the “Summary?” I had some comments, but I want to let —
give others a chance. This — what
struck me as odd here was that this kind of singles out diabetes and I think
that — but it doesn’t say why. And I
think that the reason is that the authors think that that’s the strongest
result from this thing here and maybe the most — and maybe the most ...
J.
MICHALEK: Well, this sentence will
be changed now that you want the other information in there on cancer. So there might be some edits to this based
on the addition of unpublished and published results in cancer.
P.
CAMACHO: He meant not only strong
in significance, but its impact on public health.
M.
STOTO: Well basically, you know, we
did this whole study and then in the summary, all you talk about is
diabetes. In the conclusion, there’s
only one sentence about diabetes. And
it seems to me that the summary is that we looked at lots of things, and that
we think that the ones we want to highlight are diabetes and maybe cancer will
come in there now too. But I think you
have to say why that’s the summary.
J.
MICHALEK: Again, you put your
finger on a tough issue here in summarizing several hundred analyses by
statisticians and medical doctors.
M.
STOTO: Yeah.
J.
MICHALEK: And a medical doctor
looks at this and sees diabetes and at this — in this version anyway, diabetes
as the disease, the actual disease associated with exposure. And the rest are chemistries or isolated
findings and physical examinations.
That doesn’t impress a doctor as much as disease.
P.
CAMACHO: No, but if you say that
...
M.
STOTO: Exactly.
P.
CAMACHO: If you say — if you say in
writing what you just said there ...
J.
MICHALEK: That’s enough.
P.
CAMACHO: Well, it’s — yeah, it’s
...
J.
MICHALEK: Okay.
P.
CAMACHO: ... better.
J.
MICHALEK: Very good. All right.
M.
STOTO: Yeah. The point is that you’ve studied a lot of
things. On many of the things that were
significant or laboratory ...
J.
MICHALEK: Yes.
M.
STOTO: ... results, we’re reporting
them. But in terms of what’s most
important, you’ve made a judgment that’s diabetes because it’s a disease.
R.
TREWYN: Adverse health outcomes are
such-and-such from this study based on, you know, I mean, that gets you in so
you’ve covered that base. Well again,
the summary is that there are other statistically significant — but we aren’t
writing this for statisticians.
J.
MICHALEK: It’s not always clear
what those isolated laboratory findings mean medically ...
M.
STOTO: Okay.
J.
MICHALEK: ... in terms of a person.
M.
STOTO: And it’s not like you’re
hiding them. You’re reporting on them,
I mean, including in this chapter. But
you’re saying that, you know, you’ve made a judgment that it’s appropriate to
make a judgment here; that the most meaningful from in clinical terms seems to
be the diabetes findings. But that
needs to be explained why that was really shown here. Okay. Other comments on
the “Conclusions,” Chapter 21? Going,
going, gone. Okay.
M.
STOTO: Now let’s turn to the
executive summary and so we’ve said a couple of things already. You know, one is the need to distinguish the
executive summary from the — from the — from the conclusions. And basically right now, it’s the same text
with the — in large part with the — with the headers taken out, which I don’t
think does the job very well. And then
we — I think we made some other comments too that were — that were relevant for
the executive summary. Oh, of course,
the other thing was including the purpose ...
J.
MICHALEK: Right.
M.
STOTO: ... being clear about
that. Okay. Does anyone want to have any — raise any more issues there? Rick?
R.
WEIDMAN: I think the discussion
earlier is apropos. Your conclusions
would be more your scientific findings about what you found based on the data
that you’re summarizing in this document.
The executive summary, if I may suggest, will be used by policymakers in
the same way that the executive summary is used on the GAO report and that will
be — must contain a good overall picture of both the grays as well as the
blacks and whites, if you will, of the conclusions of the report.
In
other words, a summary about generally what was most important, why is it most
important, what did you find, and how did you get there and to do so in
laymen’s terms. So therefore, in the
way in which it’s written would be significantly different than your
conclusions. Your conclusions, you don’t
have to regurgitate all the data, but merely refer back to the chapters where
you discuss that in detail. But I think
you need to say, if I may suggest, something in general about how you got to
what were the major conclusions and how you made those judgments.
M.
STOTO: Let — go ahead, Paul.
P.
CAMACHO: If you go — if you take
that idea which we’re all sort of coming to, you actually may be able to move
many of the things here, the language here, into the conclusion section. And remember, if you’re saying, yes, okay,
the executive summary is actually going to be this — something that’s
potentially used for policy — then we’re cutting it down significantly in
size. I’d say if it’s eight pages here
single-spaced, you’re going to go to four.
The
guys that — somebody is actually going to take this, and look at this and say,
“What kind of a judgment are we going to make in terms of political action on
Capitol Hill for veterans — the Department of Veterans Affairs,” et cetera? Those guys that will — they’re going to tell
some staff person to take the four-pager and reduce it to a one-pager. That’s just sort of the way it is and you
have to like, on a silver platter, “This is what you’re going to say,
Congressman. This is what the, you
know, this is what Mr. Principe has to know and this is what should be
done.” Now I don’t know if we’re in the
“what should be done,” what should — I don’t know if we’re at the “what should
be done.” That’s left for somebody
else, but we’ve got to lay it out very cleanly.
M.
STOTO: Can I propose a new outline
for the executive summary? I’m just
making it up so this is obviously — paragraph number one is the purpose of the
study which includes a statement about the historical context. Paragraph number two is about the study
design and execution, basically focusing on the Ranch Hand and comparisons
involving historical records, and medical exams and how many — roughly how many
people were involved.
Paragraph
number three is about the statistical analyses that were used with reference to
the fact that other models were used in other publications and why these
particular ones were used. Paragraph
number four is the strengths and limitations of this — of this study. Paragraph number five is that lots of
different parameters were studied and the ones that were statistically
significant were X, Y, Z, and maybe essentially just list them across all the —
all the outcomes. And then paragraph
number six is and that given all these, the ones that we think are most
clinically significant are — is diabetes for the reasons that we — that we just
discussed a minute ago and then that’s it.
P.
CAMACHO: You don’t have to throw
away all this work. You can move a lot
of this work into the conclusion.
M.
STOTO: A lot of it’s already there.
P.
CAMACHO: And a lot of it’s already
there.
M.
STOTO: Yeah.
P.
CAMACHO: So then you get a ruthless
editor and ...
J.
MICHALEK: I would only ask that we
get to see these minutes as soon as possible because all your — I didn’t write
— I mean, I’d like to see all your word-by-word comments e-mailed to us right
away because we’re running out — we don’t have a lot of time left.
M.
STOTO: Okay. Can you maybe transcribe that part of the —
I mean, I don’t ...
J.
MICHALEK: I’d like to see if we can
get ...
M.
STOTO: ... think my words are so
golden, but ...
L.
SCHECHTMAN: Allow me — allow me to
just state how we handled it the last time.
J.
MICHALEK: Okay.
L.
SCHECHTMAN: We were able to send a
draft, an early draft of the minutes to the Air Force so that they could
inject, consider and so on, the comments of the Committee. So that while we were working on finalizing
the minutes, they were able to see the comments early on in draft form and
we’ll do the same thing this time.
M.
STOTO: Well, I actually proposed
something slightly different. In that
particular list that I made those six paragraphs, that that — if you can just
transcribe that section and get that to them.
J.
ROBINSON: I captured it.
M.
STOTO: Oh, you got it? Okay.
Okay.
D.
JOHNSON: I have a — it’s sort of a
suggestion, a hybrid suggestion, I think together. The — I understood there was some talk here about putting in
language because it’s going to be used as policy and that sort of thing,
decisions. But at the same time, I
actually was thinking myself a little, I got the impression myself this was
sort of a final-final and then there’s some discussion here about it not really
being a final-final.
This
is just the 2002 just like there’s a ‘92; there’s a ‘95; there’s a ‘97. So how were those executive — how were those
executive summaries formatted? And
shouldn’t this look like one of those as opposed to making this look like a
final-final? If we’re going to have a
final-final, let’s have a final-final and make this look like an executive
summary like the other executive summaries.
M.
STOTO: That’s, I mean, certainly we
should look at those. And I don’t know,
do you have any ...
D.
JOHNSON: I mean, if we want to make
it a final-final, okay. But if it — we
don’t want it to be the final-final, then let’s have it look like the others.
M.
STOTO: Well, I think there’s two
ideas here. One is that this is — this
is an — this is a report from one phase rather than the overall. I think that point needs to be made clear
and that probably should be in here. I
mean, that’s part — maybe that’ll be part of the context in the first paragraph
in what I had. The other point is
what’s the right model for writing an executive summary? And if we have a better idea now, I would
prefer that we use that ...
D.
JOHNSON: Okay.
M.
STOTO: ... and not stick with it
just for consistency’s sake. But we may
have, you know, this may have been done well in the past and we’ve forgotten
how to do it, so we certainly should look and see whether there was a good
model there before. Yeah.
W.
GRUBBS: The format of the executive
summary that you see now is similar to what it was in 1997 and 1992, I
believe. I’m not completely sure, but I
believe it was done in the interest of full disclosure, not to leave anything
out, rather to put more in than to get a synopsis ...
J.
MICHALEK: Yeah.
W.
GRUBBS: ... and so forth. So it is similar in format to the ‘92 and
‘97. In fact, in the first draft of the
2002 executive summary, I took the 1997 executive summary from the shelf.
M.
STOTO: Well, I guess that I feel
that since we have the comparison — the conclusions chapter, the full
disclosure point is not so ...
D.
JOHNSON: Well, I think your — I
think your point’s well taken and I agree with it; just if there’s a better way
to do it just because we did it that way in the past ...
M.
STOTO: Yeah.
D.
JOHNSON: ... there’s no reason you
can’t change it. However, what are we —
as we write this, if we’re thinking — if we’re kind of thinking and discussing
as if it’s the final, that’s going to come through in the text, I mean, and
people are going to see it as the final if that’s what we’re kind of
thinking. But if we set out to write an
executive summary for 2002 knowing that there’s going to be another final
report ...
M.
STOTO: Yeah. No, I actually — I think this was written as
the 2002 report. I mean, I think that
comes through. But stating that clearly
in the — in the opening paragraph, I think, would be important.
R.
TREWYN: What’s going to be done
with the — excuse me — what’s going to be done with this next one, this
longitudinal summary? How is that going
to be utilized and if this Committee is going to be involved in assessing this
before the end? If that is the
grandiose summary of all that’s, you know, good in the world from this effort,
I guess we need to know that. That
would then be summarizing everything that’s gone on from beginning to end, I
guess.
D.
JOHNSON: But yet, if there’s not
going to be some other, then we were going to — we’re going to just — we’re
going to sort of include it in here anyway.
If this is sort of the final, we’re going to tend to put in our — the
final-type view. But if we know there’s
not going to be another executive summary for the whole study, it might change
our approach to this possibly.
P.
CAMACHO: I think your point is well
taken, sir, but I kind of — we’re going to move some of this stuff unless you
want to have the executive — a summary, you know, and then you’ll have the
ultra-executive summary. I can’t — I
can’t see it, but I think it’s a better way of doing things.
D.
JOHNSON: I don’t understand.
P.
CAMACHO: I think — I think the
suggestion that the Chairman has made is actually — I think we should go with
it. My personal opinion is to — is to
go with it.
D.
JOHNSON: What? Can you clarify what that — what you mean by
that?
P.
CAMACHO: The six points — the six
points that he outlined as to how the executive summary should be written.
D.
JOHNSON: Okay.
P.
CAMACHO: And push — just because it
is different and push a lot of this stuff, keep in. And you could say in that executive summary that our — we changed
— that we actually changed our formatting a bit to make it more clear and most
of the things that people would — found in the earlier reports in the summary,
we’ve now put in the conclusion. And I
think you save yourself with that.
D.
JOHNSON: I don’t ...
P.
CAMACHO: I think it’s better. That would be how I would think.
D.
JOHNSON: No, I didn’t mean to say
that those — that format wasn’t good ...
M.
STOTO: Yeah. I think that I heard you saying ...
D.
JOHNSON: ... and the stuff that’s
in there wasn’t good.
M.
STOTO: ... addressing something
slightly different.
D.
JOHNSON: Yeah, slightly different
than that.
M.
STOTO: Yeah.
D.
JOHNSON: So yes, I agree with ...
M.
STOTO: Okay, and I think — I think
the key thing is to — is to make it clear that this is the report from the 2002
round of examinations and related things rather than the — do you want to say
something? Did you have a comment
first, Robert, on this — on this topic or ...
R.
SILLS: I was just going to say that
I think it’s important we also indicate somewhere in there, and maybe it’s in
the section where you say the, you know, “the diseases which are clinically
significant in terms of dioxin exposure in terms of Agent Orange,” is also — is
also to indicate, you know, that there are a set of other diseases which may
not be — may not, you know, play a role in terms of risk following dioxin exposure;
not only just say these are — these are diseases that are significant, but then
we looked at these other diseases or these disease conditions which may not —
which may — which may not play a risk in terms of exposure.
M.
STOTO: And, you know, another
related ...
RECORDER: What line was that, Dr. Sills?
R.
SILLS: Oh, I was just making some
general comments.
RECORDER: Oh, okay.
P.
CAMACHO: Will there ...
M.
STOTO: Just a second; I mean, I
think another related point needs to be made clear is that just because this
study didn’t find a relationship doesn’t mean there isn’t a relationship. I mean, that’s only limited to statistical
power for giving outcomes. So we’re
just reporting about this — these analyses.
Okay. Speak into the microphone,
please.
P.
CAMACHO: Will there be another
round or opportunity for us to look just at like, say, the executive summary
and the — and the conclusion? That
sounds like those are the two biggest issues.
M.
STOTO: What’s the — what’s the
publication schedule?
J.
ROBINSON: Well, we have to — we
have markers for reviewing all the chapters.
We have to review Chapters 1 through 8, draft final report by the 9th
of December. And then I think it’s, you
know, a month later, we do the next eight chapters and then the final set are
due in the first of February. The final
publication will be ...
W.
GRUBBS: Julie is correct
there. We’re staging the report in
three stages. A lot of these last
chapters we will attempt to revise based on your comments as forwarded by the
Air Force so they have a clean copy to look at and then we’ll have
something. We expect to be able to turn
those comments around by February 7th. And then according to contract, we have 30 days to get a final
report, which would put it the first week in March.
M.
STOTO: And when does it say — our
first meeting next year will be later than that, right?
L.
SCHECHTMAN: We originally talked
about a February meeting, but that’s no longer the situation. So the first meeting in 2005 may occur in
May.
M.
STOTO: Okay. So the question is there some window of time
in the winter when we might have a chance to review these things in writing —
the executive summary and the conclusions chapter?
J.
ROBINSON: I don’t see why not.
M.
STOTO: Yeah.
J.
ROBINSON: We’d be happy to forward
them through Kimberly ...
M.
STOTO: Okay.
J.
ROBINSON: ... to you.
M.
STOTO: And then we can comment in
writing on them. I mean, I guess if
there was a need to have a telephone — what do you call it? — a conference
call, could that be arranged if necessary?
J.
ROBINSON: Certainly.
M.
STOTO: Yeah. I’m not — I’m not — I’m not sure that we’re
— it’s going to be needed, but if it would ...
W.
GRUBBS: And Mike, our plans would
be to have a revised conclusions and executive summary by January 7, 8, 9 —
somewhere in there — with comments back from the Air Force by the first week in
February. So that would be the time
frame.
M.
STOTO: So it would be basically the
month of January?
W.
GRUBBS: Yeah.
M.
STOTO: The second half of January.
W.
GRUBBS: Or you could contribute
your comments to the Air Force ...
M.
STOTO: Okay.
W.
GRUBBS: ... to give to SAIC.
M.
STOTO: Does that make sense?
L.
SCHECHTMAN: Okay. So if there is no feeling that it’ll be necessary
to have a physical get-together; I mean, this can be done over the phone in a
tele-conference, which we could arrange very easily with enough tie lines.
M.
STOTO: I think we need a January
meeting in the Caribbean to discuss this.
L.
SCHECHTMAN: That is not a problem;
don’t write this down.
M.
STOTO: Okay. Rick, did you want to make a comment?
R.
WEIDMAN: Just a question then and
for Joel, the executive summary, will that be at the front of the report?
J.
MICHALEK: That’s where we put it in
all the reports; it’s right up front.
R.
WEIDMAN: Okay. So you’ll do that
again?
J.
MICHALEK: Yeah.
R.
WEIDMAN: One of the things that you
may want to think about and consider is once again, the GAO reports, you can
fault particularly GAO reports. But in
terms of clarity and understanding, they do the executive summary; then they
list in bullet form the major findings; and then they go into methodology in
the text; and have conclusions at the end where they go through the whole nine
yards of everything they looked at and what did they find on that whether they
found significance or not.
Essentially,
the conclusions then back up the major findings in the executive summary is
that one page. As succinct as you make
it, that then is what the policymakers — whether it be the Secretary of
Veterans Affairs, or a senator or a member of Congress — will look at. And what they’ll ask their staff is, “Is
this supported by the data as presented in the overall report?”
And
so that’s as succinct as — and yet complete as you can make that executive
summary at the beginning, the better off you are for your credibility on
Capitol Hill and in the veterans community in general, and then list after that
— bang, bang, bang — your major findings, and then refer to the conclusion and
methodology in the various chapters if I may suggest.
J.
MICHALEK: It seems consistent with
the ideas of Dr. Stoto. It sounds ...
M.
STOTO: I think the only difference
is the order in which things are presented and I have — I don’t feel strongly
about that. And there’s also a press
release too, which I presume will be done which ...
J.
MICHALEK: Yes.
M.
STOTO: ... may have a different —
most likely have a different order.
Ron?
J.
MICHALEK: Yeah. So we’re talking about a hierarchy of
writing styles from the conclusions to executive summary to the press release
to make it more and more accessible to the lay reader. And we’re eliminating more and more jargon
by getting it down to plain English and that’s not easy, but that’s our challenge. That’s what we do.
M.
STOTO: Right.
R.
TREWYN: Since I just can’t resist
taking at least one more shot here in the — in the present since Dr. Miner had
pointed out that the Air Force arbitrarily decided to eliminated eight million
gallons of herbicides in their analyses out of the 19 million to only focus on
Agent Orange, I think it though would be problematic having the very last
sentence saying, “Diabetes represents the most important dioxin-related health
problem” since the charge was not to do dioxin, just ...
M.
STOTO: That’s a good point. I had a couple of technical points that may
actually not apply anymore given the change that we — that we suggested, but
I’ll just mention them. In the — in the
first two lines, it says it’s “an investigation to determine whether adverse
health effects exist in Air Force personnel who served in Operation Ranch
Hand.” Well, of course, they do. The issue is whether or not there’s more of
them. But I — but I think that if we —
if we replace it by the — if we quote the protocol, we’ll be better off there.
In
the second paragraph, it talks about “matched with a randomly selected
Comparison” and I think that probably is not right. I don’t think that “randomly selected” is appropriate there. And then again, this may — this may not be —
I think this text will probably go. But
just later in that paragraph on line 16, you say “consent forms were signed”
and I think informed consent is more than signing a form. And I think that the key thing is that the
participants gave informed consent to be — to be participants; that’s the
relevant issue there.
In
— down toward the bottom of the first page, line 41 and 42, “This model
required no assumptions about serum dioxin elimination.” Well actually, I think it assumes that
everyone has the same constant.
J.
MICHALEK: What line is that?
M.
STOTO: 41 and 42; it’s talking
about Model 4 “required no assumptions.”
J.
MICHALEK: Are you talking about the
executive summary?
M.
STOTO: Yeah.
J.
MICHALEK: 141?
M.
STOTO: No.
J.
ROBINSON: Line 41.
M.
STOTO: 41, yeah.
J.
MICHALEK: 41, sorry. Okay.
Okay. Sorry. Okay.
P.
CAMACHO: “This model required ...”
J.
MICHALEK: Yeah. You’re right. It’s ...
M.
STOTO: The issue ...
J.
MICHALEK: Yeah.
M.
STOTO: In fact, the next sentence
does say what — the point, so that contradicts the next sentence. But that — this may all go away.
J.
MICHALEK: Yeah. Yeah.
M.
STOTO: And the other point I
would’ve added if this paragraph were to stay is that we want to say something
about the covariate adjustments being made, but ...
J.
MICHALEK: Yes, covariate
adjustments — the lack of thereof, possibly missing a covariate and biasing the
results ...
M.
STOTO: Yeah.
J.
MICHALEK: ... therefore? All studies have that limitation; we’ll
mention that. It should say, “As in all
studies, the possibility exists that we missed a covariate.”
M.
STOTO: Right.
J.
MICHALEK: That’s always true.
M.
STOTO: David?
D.
JOHNSON: Back to the comment I was
making earlier, so, “Diabetes represents the most important dioxin-related
health problem,” what would you say there if you don’t say “dioxin?” And I have a couple of follow-up comments on
that. I mean, it says earlier on in the
executive summary that dioxin is used as a surrogate for herbicide exposure.
R.
TREWYN: Right.
D.
JOHNSON: Do we really mean
that? Because all of the models that we
have, three of the models — 2, 3 and 4 of the models — are really based upon
dioxin. So do — are we really using it
as a surrogate because the analysis really looks at dioxin? I mean, may — I’m just putting — I’m saying
that, but I’m also asking is that what you all agreed?
R.
TREWYN: Well, it’s been one of my
arguments since 1995 when I first came on the — on the Committee that it has
gotten too focused on dioxin as the causal agent. And if it — if an effect is not caused by dioxin, it’s not an
effect. I mean, you — that it has
become slanted in that direction and I think that’s dangerous. And I think we have an opportunity here to
at least utilize the reference to dioxin in the appropriate way; that it is in
some instances an indicator of exposure to dioxin-containing herbicides.
We
don’t want to then interpret that it was some health effect was necessarily
caused by dioxin; it may have been.
Even if it was dioxin in combination with 24D and 245T in Agent Orange,
it’s — again — it’s just in the utilization of how it’s described, I think what
the issue is here.
M.
STOTO: There’s some indication for
diabetes that — for Model 1.
R.
TREWYN: For Model 1.
M.
STOTO: Right. So I guess I would say that, you know,
diabetes is the most important, most clinically relevant finding from the
study.
D.
JOHNSON: For herbicides then?
M.
STOTO: No, it’s from the
study. And that — out of that, of
course, is a nuance statement in which we — which we described. That’s part of the introduction paragraph;
that this is a study that was done because of concerns about health effects in
Vietnam veterans which have been seen as related to herbicides, and
particularly, Agent Orange. It’s a
study in people who were highly exposed to herbicides and we have exposure
methods that are based on dioxin which is not the same as herbicides. That’s all it ...
D.
JOHNSON: Well see, I’ve only been
to three meetings and you all have been doing this for years. But my general impression, the thrust of the
conversations ...
M.
STOTO: Yeah.
D.
JOHNSON: ... have been dioxin, not
herbicides.
M.
STOTO: Yeah, and then Ron is right;
is that over time — for over time, dioxin has seemed to be — has become — seen
to be a good measure, a proxy measure for exposure to herbicides.
J.
MICHALEK: There is some data here
that I haven’t told you that would throw some light on what you’re saying,
which is another example of the in-house research not being reflected in the
big reports. By the way, it never has
been reflected in the big reports. It’s
not a fault — it’s not specific just to this one; it’s specific to all of
them. The point is that the — relevant
to your point on dioxin, dioxin correlates with the number of days spent on the
Ranch Hand Unit and the expected duration.
The longer they’re there, the higher the dioxin levels.
It
also correlates with when they were there.
Individuals who were there early in the war have higher dioxin levels
than those that were there later in the war, which correlates with what we know
from the National Academy books; that the dioxin — that the herbicides were
more heavily contaminated earlier in the war.
This information is new; it’s not published. I have it on my desk.
That would support the comments made by all of you or alluded to by all
of us that why we were studying dioxin so much. The point is it’s a direct measure that we can measure it in
blood.
Secondly,
it actually relates to what happened operationally in Vietnam during the war in
these men. That’s the piece that is
currently embedded in a paper that we’re writing on cancer and when they were
in Vietnam. So the whole — what I’m
trying to say is there’s a lot of information here that’s not reflected in the
report, which throws lights on all of your comments just now.
M.
STOTO: Yeah. Well, this is for the topic and a
complicated one. And I think, you know,
to one — what I would say is that to some degree, the study is what it is. I mean, it was — it was a study that was —
had a certain history, and it came to be done a certain way, and this is the
way it was analyzed, and that’s that.
But it’s done in a context and we now have — and it was done this way
because people assumed that serum dioxin would be a good proxy for measures for
exposure to herbicides, which was thought to be the thing that was
dangerous. And we — and so what you’re
telling us is actually evidence now to support that.
J.
MICHALEK: Yes; that the early
phenoxyherbicides were not Agent Orange.
They were — Dr. Miner knows this; is it blue and purple?
J.
MINER: Purple and pink.
J.
MICHALEK: Purple and pink. They contain dioxin at far greater
concentration than Agent Orange did and the data support that; that we see in
opposite to what you’d expect from pharmacokinetics; that people that were
there longest ago have the higher levels, which is against the grain of a
pharmacokinetic model with a body elimination.
So
this is a very strong suggestion that, yes indeed, this dioxin measure is
reflecting exposures to any phenoxyherbicide, not just Agent Orange. It’s reflecting exposures to those that took
place between 1961 and ‘65 when the concentrations were increased relative to
‘67 through ‘68.
D.
JOHNSON: That is interesting. I think though in reading the chapters, the
language and the conversation, that doesn’t come out. It’s dioxin. For example,
the discussion we had earlier about dermatology and chloracne, if we’re not
talking about dioxin, then that changes that conversation a little bit because
maybe herbicides have something to do with chloracne. But we were talking about dioxin and that’s what all of the
conversation, the language points to throughout. So that ...
J.
MICHALEK: That’s because of the
choice of statistical modeling was in terms of dioxin for Models 2, 3 and 4.
M.
STOTO: Well, let me — I forget ...
D.
JOHNSON: But then at the end — I’m
sorry — but then at the end, to say — to change all of what you’ve been kind of
discussing through the articles and say, “Diabetes represents the most
important herbicide related to health problems,” it’s a little tough to make
that leap right at that point when you haven’t been talking about it all along.
M.
STOTO: See, I wouldn’t say
“herbicides.” I would say, “The most
important problem found in this study.”
D.
JOHNSON: Okay.
M.
STOTO: Which then, of course, sets
aside this whole complicated thing about what this study is all about.
D.
JOHNSON: Right.
M.
STOTO: But I would then — I forget
which the — which chapter is which at the beginning, but there’s some study —
chapters about the study design and there’s also chapters about the dioxin
levels and so on, right? So I mean ...
J.
MICHALEK: Yes, there is.
M.
STOTO: I mean, it seems to me that
if you could bring some — bring some of this information you just said into
those chapters, that would help us to understand exactly what the study is
about and how to — how to interpret it.
R.
SILLS: Mike?
J.
MICHALEK: It’s already published,
1989. Skin exposure reported by the —
by the enlisted correlates with dioxin levels and that skin exposure was to any
herbicide whatsoever, not just Agent Orange.
So — in overall years of the war — so everything you’re saying is supported
by the data and we need to amplify that, is what you’re saying, in the text to
remind the reader of these things.
R.
TREWYN: And this goes — and this
really does get back to my very first point and why I was raising it. I think when there is information that
really came out of this study or whatever, it needs to be part of the overall
description and place things in context.
Because clearly, many of these publications — that some that have been
out for quite some time — really help illuminate the conclusions and the
observations. They put it in a context
that makes it more understandable.
And
by going through in locked step and not utilizing that because I can even go in
this second paragraph. This
information, again, it’s — this is for the 2002 executive summary. But prior to this being done, at least from
our perspective on the Committee, the recognition that a significant number of
the comparison group were stationed in Vietnam versus not off in Thailand or
whatever, that puts a different spin and a different understanding on what the
conclusion — what the appropriate conclusions are from this.
And
I think, and again, now we actually do have some data that shows that by taking
that into consideration, it changes the outcome. You know, you’ve got your analysis from the study as you
structured it, but as more information comes in, it’s better to be inclusive
and have that information in there so ...
M.
STOTO: So ...
R.
TREWYN: ... it helps the
interpretation.
M.
STOTO: So it — I think that — I
think what happened is that the study was set up on certain assumptions. And the assumptions was that the — were that
the people in the Ranch Hand Study were exposed to the bad stuff and the — and
the comparisons were not exposed to the bad stuff and ...
J.
MICHALEK: The comparisons weren’t
exposed to anything in particular that’s bad; that was the assumption.
M.
STOTO: Right, and now what we —
what we’ve learned over time is that the comparisons might have been exposed to
some of the bad stuff.
J.
MICHALEK: Something else.
M.
STOTO: Right, and that, in fact,
the — that the Ranch Hand people were exposed to dioxin and so that all — that
all fits together. And I think that
whole story is important to tell as part of the methodology.
D.
JOHNSON: Well ...
M.
STOTO: And because it has
implications for how you interpret the results.
D.
JOHNSON: Leaving though — leaving
dioxin and going to a category of herbicides might, you know, it clouds the
issue quite a bit too. Because if
you’re dealing with one, you know what you’re dealing with — a particular
exposure — and you’re studying that to see if there’s any associations with
that exposure. You go to — if you start
looking at it in terms of herbicides that could be how many different chemicals,
how do you make sense of any of that?
M.
STOTO: But at — but at this stage,
we can’t redesign the ...
D.
JOHNSON: Right.
M.
STOTO: ... study or the analysis.
D.
JOHNSON: I agree with that.
M.
STOTO: So I think that what we have
to do is report the results and give enough information so that people can
understand the context and interpret it as they — as they see fit, you know.
R.
TREWYN: I would just add too that
my — one of the points here is you get down to if it’s your $144 million bought
you that dioxin caused — causes diabetes, that doesn’t serve this group
well. It doesn’t serve anybody, you
know, well. It’s what did we learn out
of this? What’s the value? What was the value of this longitudinal
study, you know, at some point and maybe this is the next phase that gets to
that.
But
I think, you know, one hopefully can lay out a broad picture here, and some
lessons learned, some observations that will help people in the future do a
better a job either evaluating, reevaluating the data that’s there, doing
whatever. But I think, again, you get
down to this is what it got you.
M.
STOTO: Well, I think that some of
those things are not the purpose of this study. I mean, this — I mean, this
report, I should say. This report is to
analyze the data that comes out of the 2002 exams and to interpret those
results. And to interpret those
results, you need to know other things.
And I think it’s important that we bring those other things in, but in —
as an aid of — to interpreting these as opposed to reporting those things per
se.
Now
it may well be that this new study, this new thing that we talked about will be
an opportunity to talk about some of these other things as well. They’re important; I don’t mean to say
they’re not important. But I think that
the focus here needs to be on what are — were — what were the results from this
set of analyses; how do we — what the meaning is.
D.
JOHNSON: Well ...
M.
STOTO: Is that ...
D.
JOHNSON: Right, and I certainly
didn’t mean to say that we should change it — not the study. I — but if you’re trying to explain to
somebody what does this — what does all this mean, it starts to become
confusing as you start throwing in all these other potential exposures. What would that mean? Or then is this — is this study looking,
just trying to find associations with people who used herbicides?
Are
we just saying then there’s an increased association of some cancer with people
who used herbicides? And if that’s the
case, it — that’s the case. But it — but
it doesn’t really necessarily help me understand the results because that could
be one of how many chemicals? I’m just
— I’m kind of asking here.
M.
STOTO: I think that ...
D.
JOHNSON: Because I think that ...
M.
STOTO: I think it helps you understand
the results in the sense that you’re a little bit less — a little bit more wary
about them.
D.
JOHNSON: So is that — then is that
what we are doing here; is we’re looking for associations with herbicide use in
general? Is that — is that what this is?
P.
CAMACHO: What about — what about
we’re sticking to what we looked at, dioxin, but we’re informing people that
these — there were other exposures.
There were other things that people were exposed to; and we just want to
acknowledge that and let them know that; and that and other new findings are
coming about that weren’t in the protocol of the study. So by us mentioning this stuff, we’re
informing people of the limitations that our findings have.
D.
JOHNSON: Is our — that there’s
confounders.
P.
CAMACHO: That there are
confounders.
D.
JOHNSON: Yes. Absolutely.
P.
CAMACHO: Is that — so I mean, does
that sort of thing satisfy your concerns?
D.
JOHNSON: Well, I — hopefully, I’m
bringing up these concerns; it’s not my own personal concerns. I would hope ...
P.
CAMACHO: Yeah, I understand. No.
No.
D.
JOHNSON: ... that it would be
everybody’s thoughts. So you don’t have
to really — I’m really not asking for you to satisfy my concerns, but it seems
as if we’re talking about writing up something to help people understand the
results. And if we — and I wasn’t quite
understanding where you were going with it because if you say — is that our —
is it dioxin or is it herbicides with these associations? What are these associations with: using herbicides, or with dioxin or
both? And I guess my — these questions
have kind of come up here listing the distinctions.
J.
MICHALEK: Yeah. Let’s look at the history of this a little
bit. Model 1 is the plain vanilla,
old-fashioned epidemiology, Ranch Hand versus control stratified by
occupation. Separately, every epi study
is supposed to include an exposure metric.
We tried to make one in 1982 based on herbs tapes. We think we failed because the herbs tape
data was too crude at the time.
Subsequent,
the CDC developed an assay for dioxin in people and we collaborated with them
to measure dioxin. In spite of all of
its caveats, it is a direct measure and we think we know some of the caveats. And so we included it as a surrogate
exposure measure and we have three models based on it. The dioxin measurement is a direct measure;
however, it carries with it a long list of caveats: differential elimination, possible dose-related elimination that
we haven’t fully explored yet, unknown initial dose, the possibility that
dioxin is a, in the control group perhaps, a surrogate for other things.
If
you have a large body burden of dioxin, you would probably have a large body
burden of furans, and PCBs and other things because you are a poor
eliminator. And so by seeing a trend in
the dioxin — of dioxin and health in the control group, we may be reviewing
dioxin as a surrogate for markers other persistent organic pollutants that are
related to health. The story is much more
complicated, in other words, than was originally stated in our protocol.
We
didn’t know all these things when we wrote the protocol. We didn’t know that — we had not even
imagined that the control group would express heterogeneity like it does or
that the enlisted ground crew would be the most heavily exposed. In the protocol, we thought the enlisted
flyers were the most heavily exposed and it says so in there. So there were assumptions we made along the
way.
There
are complications we’ve run into that we revealed in our publications and
reports, all of which have been — are out there, but haven’t been brought fully
to bear in our interpretations like you said.
And so I think by including these things, that’ll help Dr. Johnson and
all of you address the uncertainties you see in these interpretations.
M.
STOTO: Yeah. I mean, if you go back to the protocol, I
mean, it says, “This is a study of health effects in Air Force personnel
following exposure to Herbicide Orange, the purpose of which is to determine
long — whether the long-term health effects can be attributed to occupational
exposure to Herbicide Orange.” So, you
know, okay, so that’s the purpose.
And
then, I mean, that’s — whenever you do a study, you have to find groups with
the appropriate — with exposures and there’s compromises involved in that. And so this study reflects certain
compromises that were made, and certain assumptions about those things, and
then new techniques that were developed along the way, and new things that were
discovered that relate to those compromises — those assumptions, and
compromises and so on.
So,
you know, in the end, what we have is a series of statistical results that come
from this whole long history of things.
And in order to understand what they mean, it’s important to understand
what was the purpose? What were those
assumptions? What were the — what are
the compromises? What did we learn, and
so on and so forth. I mean ...
D.
JOHNSON: So really what you’re
saying is that we are looking for associations of working with the herbicides
in Vietnam? That’s what we’re looking
for — associated illness in those people?
J.
MICHALEK: That was the original
goal, yes.
M.
STOTO: That was the original goal
and then what we have is some necessarily imperfect approximation to that.
J.
MICHALEK: It also needs to be said
this is apparently the best anyone could ever do. We applied all available resources, and all available thinking
and ...
M.
STOTO: Whether or not it’s the
best, this is what we — what we’ve got.
J.
MICHALEK: ... whatever. I think this is what we’ve got. You know, I think it’s, yeah, in retrospect,
I don’t think we could’ve done any better.
M.
STOTO: Well, that may be true, but
that doesn’t matter. I mean, this is
what we have and we have to interpret these results. And I think all that stuff is relevant to the interpretation of
these results.
R.
TREWYN: And I would just want to
try to synthesize the summary of the discussions. In 1999, my last meeting on the first four-year term that I was
on this group, it really came down to the fact that, geez, maybe Model 1 is the
most informative of the models if one then takes Model 1, and in the comparison
group, breaks it out according to in Vietnam/not in Vietnam and then rehashes
the numbers.
You
might really get to the biggest health effects for service in Vietnam or as —
come as close as you could to that, which I think we — my point was what drove
all this in the very beginning was are there adverse health outcomes for those
who served in Vietnam? The question
that was ultimately asked wasn’t quite that question, but the — at least Model
1 gave an opportunity, and still does and is starting to show that by breaking
these out in the appropriate ways — the comparison group — that, in fact, some
of that data is coming forward and is helping understand this. So ...
M.
STOTO: I think it’s really
complicated.
J.
MICHALEK: Yes.
R.
TREWYN: Well, we can have our
working lunch.
M.
STOTO: Well, okay. Let’s — I mean, we pretty much have
finished, I think, with this. I — let
me see if there are other comments about the executive summary that we — that
we can — that we can address other than redesign the study. Do we have any more Committee business
before we break for lunch? I mean, I —
let’s try to finish up. We’re basically
— let’s try and finish up our business and then break for lunch if that’s okay.
L.
SCHECHTMAN: Okay. In terms of forthcoming Ranch Hand Committee
meetings, Julie has ...
J.
ROBINSON: I did have one point of
clarification and I may not have understood the intent when you asked how many
meetings. I thought you were only
addressing 2005 as opposed until the end, conclusion because I certainly didn’t
want to imply we were not going to meet in 2006, which I think is very
important to do.
L.
SCHECHTMAN: Okay. Maybe we need to have some discussion on
what kind of agenda items would occur at the 2006 meetings. I mean, I know this would just be off the
top of one’s head at this point, but I mean, we were considering two technical
meetings in ‘05 and ...
J.
ROBINSON: Correct.
L.
SCHECHTMAN: ... then the Committee
wrap-up meeting or whatever we want to call it at this point in time. That would not necessarily be an Air Force
Health Study technical meeting, but would be Committee business related to the
study shutdown if you will. But you’re
saying now that perhaps ‘06 meetings, that there might be some more technical
meetings to finish?
J.
ROBINSON: I would — I would think
that that is not beyond possibility. I
mean, we have — we don’t know what the IOM study’s going to show.
L.
SCHECHTMAN: Right.
J.
ROBINSON: So we have those issues;
parallel to that is what we’ve constructed for our own disposition of the Air
Force Health Study within the Air Force.
We have the longitudinal study that we’re going to initiate. We also have, I think, something that’s
going to capture some of these historic issues of the study; is that we’re
going to do a historic perspective of the study.
I
mean, we’ll cover things such as selection of the comparison group, you know,
and why certain groups weren’t selected and a variety of other things that we
really haven’t, you know, codified right at this moment. So I think there definitely is plenty of
opportunity for technical meetings.
There are — you would probably want to know what has been
published: where we’re at as far as the
articles that are going to be published in peer-reviewed journals versus in the
Air Force technical reports, and kind of, you know, those unknown variables.
J.
MICHALEK: Right. You’d probably like to — you may not today —
in-house research, in other words, which is going to be reflected, like Julie
said, in journal articles and in-house reports — more and more in-house reports
as we get closer to the end.
R.
TREWYN: I would just like to add
that I think in the past, that has been very helpful to get some — in fact, so
you don’t have to stand up there, Joel, and say, “What do” — “What do you want
me to present?” I think getting some of
the overview of new data in these different perspectives when you’ve done those
presentations in the past, it has been helpful to then put the overall study in
a better context. And I think that
would be useful and for publications, presentations and whatnot to at least
give us a little overview. At least
from my perspective, that’s always been very helpful.
M.
STOTO: And I agree. Other comments on this?
L.
SCHECHTMAN: Okay. So based upon communications that we’ve had
up to now with the Air Force, based upon comments here at this meeting today
and surveys of availability, and so on, so forth, I can offer at least some
current information as to blocks of time rather than specific dates that we’ve
all, at least for now, come to some agreement on. And this, of course, does not include the additional technical
meetings that were just proposed by Julie and Joel for ‘06.
We
had originally talked about a February 2005 meeting. The Air Force has determined that that won’t be necessary at this
point in time. But here we’ve discussed
the possibility of holding a tele-con during that period of time instead, so
we’ll arrange ...
M.
STOTO: If necessary.
L.
SCHECHTMAN: ... if necessary, so
we’ll schedule that based upon the information that’ll be forthcoming. And Dr. Stoto and my office will take that
into consideration and view the possibilities of such a tele-con. In May 2005, we’re currently looking at two
blocks of time: May 1 through 6 and May
24 to 27. Of course, we’ll choose one
date within one of those blocks of time at this point.
M.
STOTO: May 1 is a Sunday.
L.
SCHECHTMAN: Okay. Well, that — we just talked about the week,
the block; I mean, there’s nothing firm about these specific numbers.
M.
STOTO: Okay.
L.
SCHECHTMAN: Okay. Okay, and in September of 2005, we are
looking at May 12th through — I’m sorry — September 12th
through 16 and 19 through 23 as the blocks.
Dr. Camacho has communicated to us the possibility of scheduling
conflicts during the month of September related to the beginning of
semester-related activities. Is that right?
P.
CAMACHO: Yes.
L.
SCHECHTMAN: So we’ll have to take
that into consideration as well.
P.
CAMACHO: I prefer the later block
in May than the earlier block in May as well because that would mean I’d still
have to find — you’re approaching that.
L.
SCHECHTMAN: Can you put that mike
on?
P.
CAMACHO: I’m sorry. I also would like — I’d rather, if I had my
druthers, I’d rather the late May period than the early May period because you
— if you teach, you have — you’re finding the beginning of the semester and the
end of the semester become very important as — for students.
L.
SCHECHTMAN: We’ll also check
calendars as to professional society meetings, holidays and so on. So we’re going to be doing a lot of juggling
during these periods of time in trying to accommodate as many folks as we
possibly can. Then we’re getting into
November of 2005. We originally talked
about the block of time, November 1 through 4.
However, in view of the NAS study and the possible availability of those
results come November of ‘05, it’s been suggested that our November meeting
follow the availability of those NAS study results.
So
that meeting then may occur either later in the month of November, perhaps in
December of ‘05, or again, avoiding holiday periods of course. But may, by virtue of calendars and
availability, have to be pushed into the beginning of ‘06 some time, perhaps
January, February, even, you know, January through March. Again, we’ll have to survey for availability
of the Air Force and the Committee members to make that determination. And we’ll continue to communicate with the
Air Force as to the ‘06 technical meetings and then survey members as to their
availability with that as well.
M.
STOTO: So I propose that we set a
date based on when we anticipate the NAS report will be done and have people
hold that. But if it turns out that we
need to postpone it, we postpone it.
L.
SCHECHTMAN: Okay. So I guess the order of the day would be
flexibility at this point, which is all we can ask. We have obligations regarding Federal Register
notices. We need to send in the
information regarding such an assemblage at least 60 days in advance of a
meeting, which seems to be rather impossible regarding this November, December,
January or February meeting that we’re talking about following the NAS study
results.
So
we’ll perhaps find a way to propose — okay, so where was I? I’m probably not going to say the same —
thank you; oh yes, 60 days. So we’ll
try and figure out a way to schedule the dates for that meeting in a way that
allows us to pull one date, replace the other.
We’re not sure as to how that works.
We have to have a very strong justification for making any amendments regarding
Federal Register modifications once they’re set. Because although we don’t consider them set
in stone, the FR notice does.
Okay. So we’ll do the best we
can with that and hope that we get some real heavy duty cooperation from
everyone. Thanks.
M.
STOTO: Comments? Other issues that need to be raised? I think we can have lunch now, but let me
first thank the folks from the Ranch Hand Study and all the contractors for the
good work that they’ve done in pulling this all together; the Committee members
for their reviews and comments; and the other staff, of course, for getting us
all here and getting us the right material; and then the others who made
contributions to the meeting by comments.
Thank you. So we’re adjourned; I
don’t think we need a motion for that.
Enjoy your lunch.
[ADJOURN 12:36 P.M.]
CERTIFICATION
State of Georgia )
)
County of DeKalb )
I,
Nadine Rivera, do hereby certify that the foregoing transcript, consisting of
pages 1 – in total, was personally
typewritten by me and is a true, complete and accurate transcript of the
proceedings recorded by me.
I
further certify that I am not related to, employed by, or attorney of record
for any parties or attorneys involved herein.
I further certify that I have no financial interest in this matter.
WITNESS MY HAND AND OFFICIAL SEAL BELOW.
This
6th day of January, 2005.
___________________________
[Seal]