Consistent with procedures established by the Psychiatric Genomics Consortium (PGC) (14, 15), we collected individual-level genotype (GWAS array) and phenotype (binary case-control status) data from contributing previous GWAS consortia and groups (for a description see Supplementary Table S1). In particular, the previous reports on anorexia nervosa GWAS from CHOP/PFCG data (7) and the GCAN/WTTTC3 (6) provide further details about cohort ascertainment and participant characteristics not described below or in the Supplementary Text.