Chunk #18 — MATERIALS AND METHODS — Statistical Analyses — GS:

Source

Polygenic contributions to alcohol use and alcohol use disorders across population-based and clinically ascertained samples.

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Analyses were performed in AS-REML-R fitting pedigree information as a random effect to control for relatedness in the sample. Fixed effects included age, sex and 4 multidimensional scaling components to correct for population stratification.