-----Messaggio originale-----
Da: Roberto Iovine <[log in to unmask]>
A: Paul Sullivan <[log in to unmask]>; M. Carmen Meerschaert
<[log in to unmask]>; ebm group <[log in to unmask]>
Data: giovedì 14 ottobre 1999 22.15
Oggetto: R: the power of placebo
>At th VII Cochrane Colloquium in Rome 5-9 October 1999, I attended a
>satellite events entitled "the placebo effects". The speaker (in this
moment
>I can't remember his name) showed the result of a systematic review on the
>placebo effect in clinical trials (exluding so the laboratory studies or
>studies performed on voluntary people). In sinthesys, they couldn't
>demonstrate any significative effect of the placebo on the "placebo
groups".
>It sounds odd to me, and to the rest of the audience too.
>I'm anxious to read the complete review when it will be published on the
>Cochrane Library.
>Roberto Iovine
>
>-----Messaggio originale-----
>Da: Paul Sullivan <[log in to unmask]>
>A: M. Carmen Meerschaert <[log in to unmask]>; ebm group
><[log in to unmask]>
>Data: giovedì 14 ottobre 1999 21.11
>Oggetto: the power of placebo
>
>
>>I think you're absolutely right. The placebo effect might be an improtant
>>part of the overall effect in real life. An example is
>>oxygen for breathlessness which many patients claim is of great benefit
>>but in studies patients may get similar benefit from air. But should we
>>therefore say that they do not benefit and so must not have a treatment
>>which is improving symptoms. Choice of control group is important and
>>difficult.
>>
>
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