Subject characteristics
| Siblings | Parents | |
|---|---|---|
| Nondiabetic | ||
| n | 1,377 | 2,313 |
| Age at time of analysis | 16.8 (0.23–40) | 44 (23–94) |
| Male:female | 656:721 | 1,092:1,221 |
| Type 1 diabetes | ||
| n | 53 | 106 |
| Age at diagnosis | 6.7 (0.5–17) | 21 (1–56) |
| Male:female | 24:29 | 70:36 |
| Diabetes on study entry | 27 | 91 |
| Diabetes onset during follow-up | 26 | 15 |
Data are n and median (range).