Statistical approaches to identify subgroups in meta-analysis of individual participant data: a simulation study.

BMC Med Res Methodol · 2019 · PMC6720416 · PMID 31477023

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an increasing trendno p-value reported

2 and 3 , but with an increasing trend in power as subgroup effect, number of participants or number of trials increased.

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a decreasing trendno p-value reported

Furthermore, similar to settings without ecological bias, PS-MA showed a decreasing trend in the FPRs estimates when heterogeneity increased.

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