Cases and controls were randomly mixed when genotyped and laboratory staff were blinded to case-control status. A random selection of 5% of the study subjects were genotyped twice for quality control. Genotyping success rate per SNP in the present study ranged between 93% and 100%. Internal duplicate concordance was >98.7% for all variants. All variants showed genotype distributions consistent with that expected under Hardy-Weinberg equilibrium (HWE) using a P threshold of 0.005 (Bonferroni correction for 10 tests).
