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- From: wsadjw@rw6.urc.tue.nl (Jan Willem Nienhuys)
- Newsgroups: sci.skeptic
- Subject: Re: homeopaty... NBC's da
- Message-ID: <6770@tuegate.tue.nl>
- Date: 28 Dec 92 12:15:52 GMT
- References: <12316.138.uupcb@ssr.com> <1hmc1gINNob6@agate.berkeley.edu>
- Sender: root@tuegate.tue.nl
- Reply-To: wsadjw@urc.tue.nl
- Organization: Eindhoven University of Technology, The Netherlands
- Lines: 91
-
- In article <1hmc1gINNob6@agate.berkeley.edu> kuritzky@wheatena.berkeley.edu (Eric Kuritzky) writes:
- >
- [partly quoting a certain Bernie and an answer to Bernie from sdb
- on the subject of Kleijnen's paper]
- #|
- #| However, a number of controlled, double blind studies have
- #| been performed which show the effectiveness of homeopathic medicine in
- #| treating a number of diseases. The following is a brief list of some
- #| of these studies.
- #|
- #| D.T. Reilly, M.A. Taylor, C.McSharry et al., "Is Homeopathy a
- #| Placebo Response? Controlled Trial of Homeopathic Potency with Pollen
- #| in Hayfever as Model," Lancet (1986):881-886.
-
- This paper score 90/100 in Kleijnen's meta-analysis.
- #|
- #| J.P. Ferley, D.Zimirou, D. D'Adhemar, et al., "A Controlled
- #| Evaluation of a Homeopathic Preparation in the Treatment of
- #| Influenza-like Syndromes," British Journal of Clinical Pharmacology,
- #| 27(1989):329-35.
- This paper scored 88/100.
- #|
- #| P.Fischer, A.Greenwood, E.C.Huskisson, et al., "Effect of
- #| Homeopathic Treatment on Fibrositis (Primary Fibromyalgia)," British
- #| Medical Journal 299(1989):365-366.
-
- Fisher, not Fischer. This paper scored 45/100, in other words severely
- lacking in quality.
- #|
- #| E.Ernst, T.Saradeth, and K.L.Resch, "Complementary Treatment of
- #| Varicose Veins: A Randomized, Placebo-Controlled, Double-Blind Trial,"
- #| Phlebology (1990): 157-163.
-
- Too recent for Kleijnen.
-
- #|
- #| Kleijnen, Jos, Knipschild, Paul, ter Riet, Gerben, "Clinical trials of
- #| Homoeopathy.", British Medical Journal, Feb 9, 1991 v302 n6772
- #| p516(8).
- #|
- #|Have you actually read any of these, Bernie? I found the last one
- #|particularly interesting. It's a meta analysis (a study of studies)
- #|of the quality of homeopathy trials. It was very critical of most
- #|trials, calling their methodology *poor*. They were also concerned
- #|with the possible role of publication bias (which they stated could
- #|not be determined at present.) The strongest statement in favor of
- #|homeopathy came when they said it could make a case for further
- #|evaluation. Hardly a hue and cry for its effectiveness. In fact, the
- #|positive trend statistics in the paper (on which they base their
- #|opinion that homeopathy should be considered for further trials) came
- #|from lumping together *ALL* trials, both questionable and
- #|unquestionable.
- #|
- #|While it's nice of you to put this somewhat critical of homeopathy
- #|trials paper in your list of references, it's rather misleading of you to
- #|describe it as a demonstrating "the effectiveness of homeopathic
- #|medicine in treating a number of diseases".
- #|
- #|sdb
- # Eric Kuritzky
-
- To which I might add
- (1) that the famous Reilly paper may score 90/100 in "methodology"
- but that the magnitude of the effect reported is ludicrous:
- The statistics reported are about "hayfever patients"; 30% of the
- participants dropped out of the study (always a worrisome aspect
- in controlled studies; the two times 79 patients at the beginning of
- the study were comparable groups, but nothing is said about the composition
- after the fall out)
- and the results (after five (5!) weeks of treatment):
-
- felt better same felt worse
- homeopathic 34 9 13
- placebo 27 5 21
-
- And there are a couple of oddities in the report that didn't bother
- Kleijnen et al., but that are cause for suspicion: the number of patients
- mentioned in the computations seems to differ from one computation to the
- next ( 52 placebos in the table and 53 in the diagram, and why are there
- in the statistical analysis of 109 or 108 patients first 100 and then 92
- degrees of freedom?).
-
- A second remark: Kleijnen et al. have been quoted by homeopaths as
- supportive of homeopathy, even when they are on record as saying more
- or less the opposite. This has lead people like Petr Skrabanek to
- lament that scientific investigation of these irrational systems
- leads nowhere. The proponents will not accept negative evidence,
- and they will use accidental favorable results to gain scientific
- respectability.
-
- JWN
-