Meta-analysis, Simpson's paradox, and the number needed to treat

<p style="text-align:justify;"> <b>Background:</b> There is debate concerning methods for calculating numbers needed to treat (NNT) from results of systematic reviews.<br/><br/> <b>Methods:</b> We investigate the susceptibility to bias for alterna...

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Bibliographic Details
Main Authors: Altman, D, Deeks, J
Format: Journal article
Language:English
Published: BioMed Central 2002