HLA-DRB1 and type 1 diabetes mellitus: Only DRB4*01:03:01‐DRB1*04:01:01‐DQA1*03:01:01‐DQB1*03:02:01 (DRB4‐DR4‐DQ8) was more frequently found in T1D children (11%) compared with controls (OR = 2.13; 95% CI (1.18, 3.83), P = 0.01).