The final combined TS/OCD dataset consisted of 2723 cases (1310 with OCD, 834 with TS, 579 with OCD+TS/CT), 5667 controls, and 290 OCD trios. A total of 7,659,573 SNPs (439,840 genotyped and 7,219,733 imputed) were included in the meta-analysis. The genomic control λ showed no evidence of residual population stratification or systematic technical artifacts (λGC=1.030; Figure S3).
