Population stratification correction using Bayesian shrinkage priors for genetic association studies.

Abstract excerpt

INTRODUCTION: Population stratification (PS) is a major source of confounding in population-based genetic association studies of quantitative traits. Principal component regression (PCR) and linear mixed model (LMM) are two commonly used approaches to account for PS in association studies. Previous studies have shown that LMM can be interpreted as including all principal components (PCs) as random-effect...

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