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Assumptions for creating matrices of evidence to estimate overlap of primary studies in overviews of reviews: Protocol for a meta-research study

2023-06-16 epidemiology Title + abstract only
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IntroductionOverlap of primary studies among systematic reviews (SRs) included in an overview is a major challenge, as it may bias results or artificially increase the precision of the synthesis. Matrices of evidence and corrected covered area (CCA) calculation are recommended methods to manage overlap, but there is little guidance on how to construct these matrices. This research aims to explore variations in the estimation of overlap using CCA matrices under different assumptions. MethodsWe w...

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