The DRB1*15:01-DQA1*01:02-DQB1*06:02 compound genotype has repeatedly been described to confer protection from T1D [17] and this protective effect is reproduced in our cohort (ln[OR] = -3.75, P = 1.05x10-157). This evidence concerns the gene HLA-DRB1 and type 1 diabetes mellitus.