HLA-B and type 1 diabetes mellitus: Furthermore, the HLA‐B*3906 variant significantly enhances the risk of type 1 diabetes in individuals carrying specific HLA‐DR/DQ haplotypes; namely, DRB01*0404‐DQB1*030221, 23, 26, 27, 28, 29 and DRB1*08–DQB1*040224, 29, 30, 31.