Article
A rapid association test procedure robust under different genetic models accounting for population stratification.
Human heredity - 1 Jan 2013
Chen Wenan, Chen Xiangning, Archer Kellie J, Liu Nianjun, Li Qizhai, Zhao Zhongming, Sun Shumei, Gao Guimin
Abstract excerpt
OBJECTIVE: For genome-wide association studies (GWAS) using case-control data with stratification, a commonly used association test is the generalized Armitage (GA) trend test implemented in the software EIGENSTRAT. The GA trend test uses principal component analysis to correct for population stratification. It usually assumes an additive disease model and can have high power when the underlying disease model is...
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