After adjusting for weights, an estimated 1125 (13%, 95% CI 10% to 18%) of GAD-2 (<3) negatives and 404 (36%, 95% CI 23% to 51%) of GAD-2 (≥3) positives met criteria for any SCID anxiety disorder (including PTSD and OCD). The gene discussed is GAD2; the disease is anxiety disorder.