Placebo interventions for all clinical conditions

Asbjørn Hróbjartsson, Peter C Gøtzsche

    501 Citationer (Scopus)


    Placebo interventions are often claimed to substantially improve patient-reported and observer-reported outcomes in many clinical conditions, but most reports on effects of placebos are based on studies that have not randomised patients to placebo or no treatment. Two previous versions of this review from 2001 and 2004 found that placebo interventions in general did not have clinically important effects, but that there were possible beneficial effects on patient-reported outcomes, especially pain. Since then several relevant trials have been published.
    TidsskriftCochrane Database of Systematic Reviews
    Udgave nummer1
    Sider (fra-til)CD003974
    StatusUdgivet - 1 jan. 2010


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