RAD50 and type 1 diabetes mellitus: rs75245322, an intronic SNP in RAD50 on chromosome 5q31.1, was associated with increased risk for any IA (HR = 1.21, 95% CI 1.02–1.44, P = 0.030) and T1D (HR = 1.36, 95% CI 1.05–1.76, P = 0.018).