BLM and type 1 diabetes mellitus: rs7167216, a missense SNP in BLM on chromosome 15q26.1, was associated with increased risk for GADA-first (HR = 1.32, 95% CI 1.04–1.67, P = 0.022) and T1D (HR = 1.30, 95% CI 1.02–1.66, P = 0.038).