| Chronic kidney disease stages | Diabetic retinopathy stable | Proliferative diabetic retinopathy (intraocular bleeding) | OR |
| 2 | 0 | 0 | |
| 3 | 16 | 12 | OR = 1.0 |
| 4 | 4 | 3 | OR: 1.0 ( 95% CI; 0.3843 - 2.021) |
| 5 | 2 | 7 | OR: 1.8148 (95% CI 1.0448 - 3.1523; Chi-squared 2.7450) p = 0.097 |