Journal of affective disorders
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Review Meta Analysis
Placebo and nocebo reactions in randomized trials of pharmacological treatments for persistent depressive disorder. A meta-regression analysis.
We aimed to investigate placebo and nocebo reactions in randomized controlled trials (RCT) of pharmacological treatments for persistent depressive disorder (PDD). ⋯ Limitations result from the methodology applied, the fact that we conducted only univariate analyses, and the number and quality of included trials.