Of the five loci that were common to both types of diabetes, there were four—BMP8A, HLA region, CENPW, ASCC2—for which scores for type 1 and type 2 diabetes were positively correlated in the type 1 Bioresource implying that the same alleles or haplotypes are associated with increased risk of both types of diabetes. This evidence concerns the gene CENPW and diabetes mellitus.