Genome-wide genotyping was performed independently in the cohorts using commercially available genotyping arrays. All cohorts imputed their genotype data to the 1000 Genomes phase 1 version 3 (build 37, hg19) reference panel using the standard software package MACH(Li, Willer, Ding, Scheet, & Abecasis, 2010) or IMPUTE2(Howie, Donnelly, & Marchini, 2009), except for the Finnish Crime Study and MSUTR, which were not imputed. Additional details and cohort-specific procedures concerning the genotyping process, imputation, and quality control are provided in the Supplementary Information, Chapter 2 and Table S1).
