Systematic Review and Meta-Analysis of the Placebo Effect and its Correlates in Obsessive Compulsive Disorder.

Can J Psychiatry · 2023 · PMC10408559 · PMID 35876317

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showed a trendno p-value reported

showed a trend of increasing placebo response in patients with OCD between 1991 and 2017. 17 Similar time trends in placebo effects have also been reported in depressive and anxiety disorders (ADs). 18 , 19 Many systematic reviews and meta-analyses have been conducted to estimate the placebo effect in differe

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