| genotype | Control No. (in percentage) | Type2 DM No. (in percentage) | Diabetic nephropathy No. (in percentage) |
| Ins/ins | 12 (24%) | 24 (48%) | 35 (70%) |
| del/del | 38 (76%) | 19 (38%) | 14 (28%) |
| Ins/del | * | 7 (14%) | 1 (2%) |