The Impact of Study Size on Meta-analyses: Examination of Underpowered Studies in Cochrane Reviews Turner RM, Bird SM, Higgins JP. PLoS One. 2013;8(3):e59202. An old paper but one someone pointed out recently and it’s one that mentions rapid reviews in a number of places, notably: “When at least two adequately powered studies are available in meta-analyses reported by Cochrane reviews, underpowered studies often contribute little … Continue reading The Impact of Study Size on Meta-analyses: Examination of Underpowered Studies in Cochrane Reviews