Multiplicity of data in trial reports and the reliability of meta-analyses: empirical study.
Abstract
Objectives To examine the extent of multiplicity of data in trial reports and to assess the impact of multiplicity on meta-analysis results.
Design Empirical study on a cohort of Cochrane systematic reviews.
Data sources All Cochrane systematic reviews published from issue 3 in 2006 to issue 2 in 2007 that presented a result as a standardised mean difference (SMD). We retrieved trial reports contributing to the first SMD result in each...
Paper Details
Title
Multiplicity of data in trial reports and the reliability of meta-analyses: empirical study.
Published Date
Aug 30, 2011
Journal
Volume
343
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