The results revealed that only the DQB1*02 was significantly associated with T1D, unadjusted odds ratio (UOR) 4.2 (95% CI 1.4–12.7) (p=0.01). The DRB1*04 also showed a higher allelic frequency in T1D patients compared to the controls. The gene discussed is HLA-DRB1; the disease is type 1 diabetes mellitus.