Figure 1. Association results of stage 1 meta-analysis in African Americans in a model adjusted for age, sex, study sites and study-specific principle components.

(A) Manhattan plot. Previously identified loci are denoted in red. Novel loci identified in this study are denoted in blue. (B) Quantile-quantile plot. The observed P values (y axis) were compared with the expected P values under the null distribution (x axis).