To determine whether the 12 SNPs previously-reported as genome-wide significant in GWAS for alcohol consumption-related traits (e.g. MaxDrinks) were associated with alcohol consumption in the current study, we used a nominal significance level of 0.05. A more stringent multiple testing correction accounting for the 2 phenotypes tested and for the number of variants tested for each ethnic group is also presented (Bonferroni-corrected alpha level of 0.05/(2×6) for European population, of 0.05/(2×4) for Asian population, and of 0.05/(2×2) for African ancestry population).
