SHBG and Tourette syndrome: Moreover, for several psychiatric disorders including anorexia nervosa, Tourette’s syndrome, obsessive–compulsive symptoms, and panic disorder, the sample sizes of GWASs we utilized were comparatively low, which may partially explain the general lack of strong genetic correlations of these disorders with endocrine hormones, apart from with SHBG, which derived summary statistics from a well-powered GWAS.