Distribution of complications according to age groups of patients
| Age | N | Complications: N (%) | Most common complication: (%) |
| ≤35 | 12 | 5 (41.7) | Retinopathy (16.7) Neuropathy (16.7) |
| 35–50 | 70 | 49 (70) | Retinopathy (18.6) |
| 50–65 | 248 | 208 (83.9) | Retinopathy (16.1) |
| >65 | 160 | 151 (94.4) | Combination of R, Nph, and CAD (10.6) |
| Total | 490 |
CAD, coronary artery disease; N, number; Nph: nephropathy; R, retinopathy.