Abstract:aggregated data would have reduced precision. Including more publications per trial is essentially a grave meta-analytical flaw 6 (section 7.2.2) because identical or overlapping samples risk being counted more than once, distorting estimates and artificially reducing heterogeneity.We are puzzled by the assertion that only P values were reported when comparing design types, as Table 1 also included heterogeneity and 95% CIs for each outcome considered, for each design type. 1 No effect size was left unaccompan… Show more
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