DRB1*04:01:01 was present in 64% of T1D w/CD (OR = 16.3; 95% CI (4.82, 62.92), P = 1.53 × 10−06), DRB1*03:01:01 in 29% (OR = 2.92; 95% CI (0.66, 10.29), P = 0.08). The gene discussed is HLA-DRB1; the disease is type 1 diabetes mellitus.