would support us and Please ask them to read
it and Sign the Petition.
We would like to get as MANY signature
Before Oct 28th as possible.. Thanks for
your help and please settle in and have a read.
=========================
Don't support the "Reeves empirical definition
criteria for CFS"?
Sign the petition at:
http://CFSdefinitionpetition.notlong.com
=========================
Mr Tom Kindlon wrote the following
and has given permission for the
(partial) reprint of his submission to the
CFSAC upcoming meeting on Oct 29th.
************************** He set up a petition on the issue on the
15th of April, 2009. This petition is
summarized in 10 words as,
"CDC ~ CFS Research should not
involve the empirical definition (2005)"
The petition: http://bit.ly/3x7zqK
We call on the Centers for Disease
Control and Prevention (CDC) to stop using the "empirical" definition
[1] (also known as the Reeves 2005 definition)
to define Chronic Fatigue Syndrome (CFS)
patients in CFS research.
The definition: http://bit.ly/rfw4i
The CDC claim it is simply a way of
operationalizing the Fukuda (1994)
definition[2]. However the prevalence
rates suggest otherwise: the "empirical"
definition gives a prevalence rate of 2.54% of
the adult population[3] compared to 0.235%
(95% confidence interval, 0.142%-0.327%)
and 0.422%
(95% confidence interval, 0.29%-0.56%)
when the Fukuda definition was used in
previous population studies in the US[4,5].
The definition lacks specificity.
For example,
one research study[6] found that 38%
of those with a diagnosis of a Major
Depressive Disorder were misclassified
as having CFS using the empirical
Reeves definition.
References
[1] Reeves WC, Wagner D, Nisenbaum R,
Jones JF, Gurbaxani B, Solomon L,
Papanicolaou DA, Unger ER, Vernon SD,
Heim C. Chronic fatigue syndrome--a
clinically empirical approach to its definition
and study. BMC Med. 2005 Dec 15;3:19. Link: http://bit.ly/rfw4i [2] Fukuda K, Straus SE, Hickie I, Sharpe MC,
Dobbins JG, Komaroff A. The chronic fatigue
syndrome; a comprehensive approach to its
definition and study. Ann Int Med 1994,
121:953-959.
[3] Reeves WC, Jones JF, Maloney E, Heim C,
Hoaglin DC, Boneva RS, Morrissey M, Devlin R.
Prevalence of chronic fatigue syndrome in
metropolitan, urban, and rural Georgia.
Popul Health Metr. 2007 Jun 8;5:5.
[4] Reyes M, Nisenbaum R, Hoaglin DC,
Unger ER, Emmons C, Randall B, Stewart JA,
Abbey S, Jones JF, Gantz N, Minden S,
Reeves WC: Prevalence and incidence of
chronic fatigue syndrome in Wichita, Kansas.
Arch Int Med 2003, 163:1530-1536.
[5] Jason LA, Richman JA, Rademaker AW,
Jordan KM, Plioplys AV, Taylor RR,
McCready W, Huang CF, Plioplys S.
A community-based study of chronic fatigue
syndrome. Arch Intern Med. 1999 Oct 11;159
(18):2129-37.
[6] Jason, LA, Najar N, Porter N, Reh C.
Evaluating the Centers for Disease
Control's empirical chronic fatigue syndrome
case definition. Journal of Disability Policy
Studies 2008, doi:10.1177/1044207308325995.
Further reading: Leonard Jason, Ph.D.,
DePaul University. Problems with the New CDC
CFS Prevalence Estimates
http://tinyurl.com/2qdgu4 i.e.
--------------------------------------------------------
I'm the first to admit that this isn't
exactly the "catchiest" petition that
has ever been created. One might think
it would be lucky to get a few dozen
responses.
However already, in just over a month,
1633 people have signed (at the time
of writing). Many have left comments
which can be read on the site:
Petition Signatures
[Aside: other people have also left comments
but for some reasons the comments have
not gone up].
I believe this shows the depth of feeling
there is on this issue.
As I said in my last submission, if one looks
at the CFSAC function, it is clear that the
issues relating to the definition are
fairly central.
I listed numerous problems regarding
the definition in my submission to the May 2009 CFSAC meeting ( http://bit.ly/2CZHKF ) so I'm not going to repeat them now. I do not believe that Dr Bill Reeves
adequately dealt with the concerns
about the Reeves 2005 criteria in the
last meeting. He said that the
difference between the prevalence rates they
found in Georgia (2540 per 100,000)
compared to previous estimates
(235 and 422 per 100,000) were down
to two issues:
- the different methodology in the Georgia
where they brought in people who did not
complain of fatigue on the telephone screening.
He said that "20-30 percent of people who did
not complain about fatigue endorsed the
Fukuda criteria." However, the paper for
which he is the corresponding author actually
gives a lower figure of 11.5%
["In other words, 11.5% of subjects with
CFS would not have been detected in
previous studies that queried participants
only for fatigue"]. It should also be
remembered that some of these people
might not have satisfied the criteria for
Fukuda as it is normally applied -
the Reeves criteria make it easier to
satisfy the criteria. So the real figure
could well be less than 11.5%. But even
if one takes the figure of 11.5%, that
would only bring the figures of 235 and
422 per 100,000 up to 266 and 479 per
100,000 which are still dwarfed by the
2540 per 100,000 prevalence rate from
the Reeves criteria (2005).
- The other point he starts talking about
in this section is criteria regarding major
depressive disorder so he may have been
trying to make a point with regard to this.
Personally I agree with him and see this as an
important area also! First a quick aside:
there are various forms of depression
e.g. dysthymia, atypical depression, etc.
In the past, apart from bipolar, the main one
excluded was MDDm (melancholic Major
Depressive Disorder), a severe type of
depression. Many people still had depression
but were included as they satisfied the criteria.
With the Reeves (2005) criteria, it says:
"Following recommendations of the
International CFS Study Group, only current
MDDm was considered exclusionary
for CFS." However, part of the specific
recommendations of the International
CFS Study Group [1] that
(Reeves claims his definition is based on)
was that MDDm had to have been resolved
for more than 5 years:
"The 1994 case definition stated that any
past or current diagnosis of major
depressive disorder with psychotic or
melancholic features, anorexia nervosa,
or bulimia permanently excluded a subject
from the classification of CFS ... we now
recommend that if these conditions have been
resolved for more than 5 years before the
onset of the current chronically fatiguing
illness, they should not be considered
exclusionary."
It might not be important to point this out
for definitions for some illnesses: however
if one looks at table 2 of the 2005 paper,
6 of the 16 who are said to have CFS using
the "current classification" of CFS, had been
diagnosed with MDDm at a previous
assessment which suggests it is important in this context. Also Leonard Jason published a study which
found that 38% of those who have
Major Depressive Disorder but not CFS would
satisfy the symptom, fatigue,
etc criteria in the Reeves definition.
Also the Nater et al. (2009) study found
that 57% had current psychiatric
disorders and 89% had lifetime
psychiatric disorders, suggesting the
definition is picking up a group with
a lot of psychopathology.
[Aside: A lot of people have made
suggestions to me speculating why the
CDC broadened the criteria in the way
I have. I do not know the answer.
The most plausible theory to me is the
following: The CDC followed patients in
the community in 1997, 1998, 1999 and 2000.
Between December 2002 and July
2003, they were brought in for intensive testing.
In total, 227 people were invited in,
including 70 who had previously been
diagnosed with CFS. These people went
through very expensive testing -
the whole exercise cost $2m.
However, unfortunately, only 6 out of
the 70 cases of CFS satisfied the Fukuda
definition when they were brought in.
Also 4 more of the other individuals
also satisfied the definition.
If one only excludes people who currently
have Melancholic Major Depressive Disorder
(MDDm) (which was not the recommendation
of the International CFS Study group), one
can get the numbers who satisfy the Fukuda
definition up to 16.
The CDC admit this in their paper
(Reeves, 2005). However 10 (or 16 if one
allows all the MDDm cases) people with CFS
would not be enough for the CDC to publish CFS
studies with a lot of the data they have.
For some of the experiments, people would
not have been suitable for one reason or
another e.g. they were on medication.
Also, often data is not complete or tests
become corrupted so a percentage is lost.
For some of the experiments, gender might
make a difference and one may end up
excluding the men as there might not be
enough patients. So 10 or 16 CFS patients
is not enough to publish CFS papers
using this data. But $2m of the CFS fund
had been spent on this experiment and it
might look like a waste of taxpayers' money
if papers were not published.
The CDC had already gotten into
trouble for misusing the CFS budget
in the past. So the definition of CFS
was expanded so that CFS papers could
be published. So that's one plausible
theory although one does not need to
accept that to believe that the
empirical definition is flawed].
Even if for some reason, the CFSAC
do not want to recommend against the
definition, it would be good if you
pressed the CDC to make clear in each
and every paper they write that they
use the empirical criteria, that they
were used. The reference for the
empirical criteria is often not being put
in the list of references. I know the
patients were selected using the
empirical criteria because they are part
of the 2-day Wichita study cohort
or from the Georgia study but most
people reading the papers will not
know this.
--------------------------
2) I think the CDC CFS program should
have to cut its ties with Peter White,
according to its own rules regarding
external reviewers:
At the May 2008 CFSAC meeting, the
following information was given on the
CDC External Peer Review of CFS Program
http://bit.ly/3y5vqZ <-- hhs.gov pdf
"CDC plans to conduct an external
peer-review of the CFS program in late
summer/early fall 2008. This review will be
conducted by a panel composed of
national and international experts that is
to include representatives from
the Coordinating Center for Infectious
Diseases Board of Scientific
Counselors and CFSAC. CDC is requesting
that CFSAC members recommend names
of experts with no conflict of interest
(direct funding from CDC)"
and
Dr. Miller:
"The panel will be external experts in the
field who have no conflict of interest-they
are not receiving CDC funding and
***would not have a direct impact on
the program in its development in stages
other than the recommendations.***"
One of the external review panel
(which was small - only 4 people wrote the
report), was Dr Peter White. At the May 2008
CFSAC meeting, Dr Bill Reeves
said: "We talk to Dr. White fairly regularly."
It is unclear who nominated Dr. White
to the panel of external reviewers -
perhaps the CFSAC could ask this.
It was not the CFSAC as the minutes
show. Dr. Reeves talked as if they might
have been suggested Dr. White be
involved because he was an
"expert on autonomic
nervous system function."
(which is a
curious statement to make given
Dr White is a psychiatrist, whose
PubMed-listed articles do not suggest
he is an expert in this field).
Anyway, the external review panel made the
following recommendations:
"The panelists recommend that the CDC
program urgently consider intervention
studies to help to elucidate the direction
of causality in the several
pathophysiologies identified by the CDC.
This strategy was not articulated
clearly. For example, since both cognitive
behavior therapy and graded exercise
therapies are known to address some of the
abnormalities found, and since both these
therapies have been shown to be efficacious
for CFS, these behavioral interventions should
be seriously considered. Collaborations with
providers and medical schools practised in
randomised controlled trials
might provide the best means to achieve this."
A summary of strategic recommendations
[..]
5. Clinical guidelines on management
should be developed for use in the USA,
by the CDC team in collaboration with
others, and disseminated for CFS.
6. The team needs to consider studies
that test the direction of causality
of pathophysiology, such as using
interventions."
At the May 2009 meeting,
Dr Reeves said:
"Peter White, the psychiatrist that
we work with at Emory,"
"We are in the process of planning a
cognitive behavioral therapy (CBT) and
graded exercise (GET) trial as part of the
provider registry population in Macon.
We're going to do that in collaboration
with the providers in Macon, with Mercer
Medical School, *with the U.K. group*,
and with Mayo Clinic."
- "International Workshop -
Research, Clinical, and Pediatric
Definitions of CFS - I would like to try to
get together by the winter of 2009.
I know the IACFS/ME is interested in this.
We want to include countries such as UK
that have CFS care completely integrated
into their healthcare system."
- "Dr. Reeves: An excellent comment.
Our focus is obviously on the United
States. There are three important
reasons for international collaboration.
One of them I alluded to. There are
countries that have put CFS evaluation,
diagnosis, and management into their
national health systems. The UK is one
of those. An international meeting
provides the chance to learn from
another government that has embraced
this illness- perhaps not to the extent
that everybody would like-but is trying
to work with it as a national health
service."
Given that the only representative from the
UK that the CDC has invited to its CFS
meetings since around 2001/2002 is
Peter White, it looks very likely that they have
him in mind for both of these workshops.
Also it looks like he is involved in their
Emory research and may be involved
in the CBT/GET.
Both for the CDC's reputation and
Dr White's, it would be better if the CDC
cuts its ties with him given he took
part in the external peer-review.
3) There is potential that who the
individuals the CDC invites to its
upcoming workshops may not be
representative of the spectrum of opinion
amongst experts in the field, based on
the make up of, for example, some
International CFS Study Groups
previously.
The CDC are planning to have three
workshops on CFS (according to their
draft plans):
- International Workshop -
Clinical Management of CFS
- International Workshop -
CFS Case Definition
- Workshop International -
CFS Study Group (Research priorities)
However, it should be remembered that,
for example, what is considered good
management of CFS is a highly disputed
area. Many professionals believe
that Graded Exercise Therapy (GET) and
Cognitive Behavioural Therapy (CBT)
based on GET
"are basically all that patients need."
Symptoms are seen as
largely due to deconditioning and
maladaptive beliefs and behaviours
rather than an ongoing disease process.
I will call these the people of the "CBT
School of Thought."
A few professionals go further and claim that
GET and CBT based on GET can lead to full
recovery. This is a small group but it includes
Peter White (mentioned above) and the
psychologist, Gijs Bleijenberg PhD from the
Netherlands. Both of these professionals,
who many would consider to have
extreme views, have been the sole
representatives from their countries at
workshops the CDC have organised on the
illness (see for example
http://www.cdc.gov/cfs/cfsmeetingsHCP.htm ).
The CDC was involved in a paper this
year, "Are chronic fatigue and chronic
fatigue syndrome valid clinical entities
across countries and healthcare
settings?" by Hickie I, Davenport T,
Vernon SD, Nisenbaum R, Reeves WC,
Hadzi-Pavlovic D, Lloyd A and International
Chronic Fatigue Syndrome Study
Group (28 collaborators).
Of the 35 individuals involved, apart
from the CDC team members, virtually all
could be said to be of the CBT School of
Thought with regard to CFS.
However, a meta-analysis
(Malouff et al., 2008) found that the
average Cohen's effect size for Cognitive
Behavioural Interventions
(include GET) for CFS was 0.48
which does not reach the threshold of 0.5 for
something to have a moderate effect!
Leonard Jason published a large NIH-funded study in
2007 which found that an intervention based
around encouraging patients to pace activities
did better than interventions that assessed CBT
or exercise programmes. Prof. Jason
subsequently published a paper which found
that within this trial, "Those who were able to
stay within their energy envelope had
significant improvements in physical
functioning and fatigue severity."
Is the CDC going to ensure that there
are a reasonable numbers of
individuals at these workshops who
believe that pacing is a good management
strategy for CFS? Some/many in the CBT
School of Thought are against pacing and will
not recommend it. Are the CDC going to
ensure there will be proponents of
Energy Envelope Theory at these
workshops? Also I don't think one person is
sufficient given group dynamics.
An even more important issue is the high
rate of adverse reactions reported by
people with CFS who have done exercise
programmes (and CBT based on
exercise programmes). Unlike drugs,
generally there is no easy way for
professionals or individual patients with
CFS to report adverse reactions to
non-pharmacological interventions
such as GET. So formal data is not
systematically collected by statutory
agencies in countries around the
world. Surveys on the issue are the
next best source of information it
would seem. I sent information on
10 such surveys to the CDC in my
submission on their draft plans - see
http://tinyurl.com/adversereactionsinCFS
http://bit.ly/1nPXA7
These are surveys from various countries
(the UK, US, the Netherlands and Norway)
and show the high rates of adverse reactions
that are reported. The latest survey was from
the UK, by the ME Association:
906 replies:
Made much worse: 33.1% (300 individuals),
Slightly worse: 23.4%, No change: 21.4%.
Improved: 18.7% and Greatly improved: 3.4%.
These represent very high rates
of adverse reactions.
If a drug made 33.1% "much worse",
it would probably be taken off the
market until they worked out if there
were certain groups of patients for
whom it was, and was not, appropriate.
Dosages might be changed.
Some proponents of GET for CFS claim
that it is simply because the GET was not
done under a suitable professional.
However, in the UK, where CFS clinics have
been set up around the country, this was
investigated in a survey by AYME/AfME
(May 2008). They asked about experiences of GET in the
three previous years. This was after the
specialist services had been set up.
There was no statistical difference between
the rate of adverse reactions in those who did
GET under an "NHS specialist" and the people
who did GET under other individuals or by
themselves.
Even if it was the case that GET is only
unsafe when not done under an
appropriate professional, GET is available
"over the counter" so if guidelines from
the CDC and others recommend it,
many patients will try this
treatment.
Many proponents of GET and CBT based
on GET do not impart information on the
high rates of adverse reactions to either
the patients themselves or even other
professionals when they are educating
them about the interventions. Some use
the "catch phrase" that they are
"safe and effective."
The CFSAC should "insist" that any
guidelines should give information on
adverse reactions either with specific
information or simply generally points
about the high rates of adverse reactions
that have been reported.
Perhaps the CFSAC
(and indeed other groups) could have
a role in recommending names for these
workshops to ensure these workshops
are balanced e.g. the CFSAC get to
recommend 25% of the groups,
the IACFS/ME another 25%,
a patient group such as the CAA 10%
and the CDC 40%.
(Groups could give alternates if some
of their picks were already used).
Suggestions for professionals from the
UK who I would think would give
balance to any workshops are:
(i) Charles Shepherd MD ; (ii) Ellen Goudsmit
C.Psychol. PhD FBPsS (Health Psychologist
and Visiting Research Fellow,
University of East London) ;
(iii) Abhijit Chaudhuri DM MD PhD FACP FRCP
(a consultant neurologist) ;
(iv) Neil Abbot MSc PhD (Operations Director,
ME Research UK) and (v) William Weir MD
(an infectious disease consultant who
ran an NHS clinic for ME for a
number of years)
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