Distribution by diabetes type differed between groups (χ2 = 8.7, p = 0.013): in the GV-high group, type 1 diabetes accounted for 10/29 (34%), type 2 on oral agents for 8/29 (28%), and type 2 insulin-treated for 11/29 (38%); in the GV-low group, the corresponding proportions were 4/29 (14%), 16/29 (55%), and 9/29 (31%), respectively. This evidence concerns the gene INS and diabetes mellitus.