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 followingand 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 commentsbut 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 looksat 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 didnot complain about fatigue endorsed the Fukuda criteria." However, the paper forwhich he is the corresponding author actually gives a lower figure of 11.5% ["In other words, 11.5% of subjects withCFS 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 figurecould 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 per100,000 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 oneexcluded 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 resolvedfor more than 5 years:
"The 1994 case definition stated that anypast or current diagnosis of major
depressive disorder with psychotic or melancholic features, anorexia nervosa, or bulimia permanently excluded a subjectfrom the classification of CFS ... we now recommend that if these conditions have been
resolved for more than 5 years before theonset of the current chronically fatiguing
illness, they should not be considered exclusionary."
It might not be important to point this outfor 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 madesuggestions to me speculating why theCDC broadened the criteria in the wayI 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 Fukudadefinition when they were brought in.Also 4 more of the other individualsalso 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), onecan get the numbers who satisfy the Fukudadefinition 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 wouldnot 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 beenough patients. So 10 or 16 CFS patientsis not enough to publish CFS papers
using this data. But $2m of the CFS fundhad been spent on this experiment and it might look like a waste of taxpayers' moneyif papers were not published. The CDC had already gotten intotrouble for misusing the CFS budgetin the past. So the definition of CFSwas expanded so that CFS papers couldbe published. So that's one plausibletheory although one does not need toaccept that to believe that theempirical 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 partof the 2-day Wichita study cohort
or from the Georgia study but mostpeople reading the papers will notknow 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 Programhttp://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 thefield 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 minutesshow. Dr. Reeves talked as if they mighthave been suggested Dr. White beinvolved 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 CDCprogram 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 theabnormalities found, and since both thesetherapies have been shown to be efficaciousfor CFS, these behavioral interventions shouldbe seriously considered. Collaborations with
providers and medical schools practised inrandomised 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 collaborationwith 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 toget together by the winter of 2009. I know the IACFS/ME is interested in this.We want to include countries such as UKthat have CFS care completely integratedinto 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 theirnational health systems. The UK is one
of those. An international meetingprovides the chance to learn fromanother government that has embracedthis illness- perhaps not to the extentthat everybody would like-but is tryingto work with it as a national health
service."
Given that the only representative from theUK that the CDC has invited to its CFS meetings since around 2001/2002 is Peter White, it looks very likely that they havehim 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 disputedarea. Many professionals believe
that Graded Exercise Therapy (GET) andCognitive 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 includesPeter 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 entitiesacross countries and healthcare
settings?" by Hickie I, Davenport T, Vernon SD, Nisenbaum R, Reeves WC,
Hadzi-Pavlovic D, Lloyd A and InternationalChronic Fatigue Syndrome Study
Group (28 collaborators). Of the 35 individuals involved, apart from the CDC team members, virtually allcould 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 forsomething 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 CBTor exercise programmes. Prof. Jason subsequently published a paper which foundthat within this trial, "Those who were able tostay within their energy envelope had significant improvements in physical functioning and fatigue severity."
Is the CDC going to ensure that thereare 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 highrate 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/adversereactionsinCFShttp://bit.ly/1nPXA7
These are surveys from various countries (the UK, US, the Netherlands and Norway) and show the high rates of adverse reactionsthat are reported. The latest survey was fromthe 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 peoplewho did GET under other individuals or bythemselves.
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 eitherthe 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 reactionsthat 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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