Article
The role of environmental heterogeneity in meta-analysis of gene-environment interactions with quantitative traits.
Genetic epidemiology - 1 Jul 2014
Li Shi, Mukherjee Bhramar, Taylor Jeremy M G, Rice Kenneth M, Wen Xiaoquan, Rice John D, Stringham Heather M, Boehnke Michael
Abstract excerpt
With challenges in data harmonization and environmental heterogeneity across various data sources, meta-analysis of gene-environment interaction studies can often involve subtle statistical issues. In this paper, we study the effect of environmental covariate heterogeneity (within and between cohorts) on two approaches for fixed-effect meta-analysis: the standard inverse-variance weighted meta-analysis and a...
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