| Age (years) | Duration of diabetes (years) |
---|---|---|
Nondiabetic donors | ||
 1 | 68 | – |
 2 | 52 | – |
 3 | 71 | – |
 4 | 72 | – |
 5 | 63 | – |
 6 | 74 | – |
 7 | 65 | – |
 8 | 75 | – |
Donors with diabetic retinopathy | ||
 1 | 55 | 35 |
 2 | 70 | > 20 |
 3 | 71 | 41 |
 4 | 75 | 35 |
 5 | 73 | 25 |
 6 | 75 | 25 |
 7 | 68 | 16 |
 8 | 61 | 10 |
 9 | 61 | 22 |