the phenotype were conducted as an additional control, yielding on average no significant heritability (h2 TS = 0.06, se = 0.07, p = 0.3; h2 OCD = 0.06, se = 0.08, p = 0.3). Analyses were also conducted on imputed data, resulting in similar estimates of heritability for TS (0.48, se = 0.09, p = 3.0e-08) and OCD (0.32, se = 0.07, p = 7e-06).