Clinical characteristics of participants with type 1 diabetes mellitus
| Variable | Type 1 diabetes |
| Mean age | 41.9 years (95% CI 39.8 to 44.0) |
| Number of men | 390/706 (55.2%) |
| Mean hemoglobin A1c | 8.27 (SD 1.68) |
| Self-reported complications (%) | |
| Retinopathy | 249 (35.3) |
| Nephropathy | 55 (7.8) |
| Peripheral neuropathy | 133 (18.8) |