Only half of the authors of overviews of exercise-related interventions use some strategy to manage overlapping primary studies —a meta-research study

The conduct of systematic reviews (SRs) and overviews share several similarities. However, because the unit of analysis for overviews is the SRs, there are some unique challenges. One of the most critical issues to manage when conducting an overview is the overlap of data across the primary studies included in the SRs.
Source: Journal of Clinical Epidemiology - Category: Epidemiology Authors: Tags: Original Article Source Type: research