HLA-DRB1 and type 1 diabetes mellitus: The DRB1*0301-DQB1*0201, -DRB1*0401-DQB1*0302, -DRB1*0402-DQB1*0302, and -DRB1*0405-DQB1*0302 haplotypes conferred T1D predisposition, although the ORs from the DRB1*0401 and *0405 haplotypes containing DQB1*0302 were lower than those reported in European and African-American studies16.