To determine the interdependence of the SNPs, we repeated the association test using one of the most significantly, rs279827, as a conditional factor (covariate). None of the SNPs were longer significant indicating that there are not two or more independent SNPs influencing the association of GABRA2 on impulsiveness. Figure 1 depicts the location of the ten associated SNPs highlighting the strength of the association with impulsiveness around SNP rs279827.
