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Randomized trials with antidepressants are often run under double blind placebo-controlled conditions, whereas those with psychotherapies are mostly unblinded. This can introduce bias in favor of psychotherapy when the treatments are directly compared. In this meta-analysis, we examine this potential source of bias.We searched Pubmed, PsycInfo, Embase and the Cochrane database (1966 to January 2014)...
Standardised effect sizes have been criticized because they are difficult to interpret and offer little clinical information. This meta-analyses examine the extent of actual improvement, the absolute numbers of patients no longer meeting criteria for major depression, and absolute rates of response and remission.We conducted a meta-analysis of 92 studies with 181 conditions (134 psychotherapy and...
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