Raw score descriptive statistics for the GWAS cohorts are shown in Table 1. Analyses were performed on standardised scores for measure compatibility. Correlations among the measures within each cohort were significant (Table S2). P-values from meta-analysis are presented in Manhattan and Q-Q plots (Figures S1 and S2). No SNPs surpassed genome-wide significance. Effect size statistics and P-values for SNPs reaching suggestive significance are shown in Table 2. The top 100 SNPs for each measure appear in Table S3; whereas these do not pass the stringent significance tests of GWAS, they may lie in existing candidate genes.
