To limit multiple testing, we initially focused our attention on the bipolar-associated SNP rs9804190, and found it to be associated with both PTSD and externalizing (Table 1). For externalizing, β=−0.33 (where β represents the average change per minor T allele) and p=0.028. In the analysis of PTSD, the estimated odds ratio (OR) for the minor T allele was 0.71, and p=0.042.
