Prevalence of diabetic retinopathy (DR) among diabetic participants and the full survey population
| N | Diabetic participants (n=612) % (95% CI) | Full survey population (n=2626) % (95% CI) | |
| Diabetic retinopathy grade | |||
| No DR (R0) | 390 | 65.4% (61.9 to 68.9) | 92.1% (91.0 to 93.0) |
| Background DR—mild (R1) | 132 | 22.1% (19.2 to 25.0) | 5.1% (4.2 to 5.9) |
| Background DR—observable (R2) | 30 | 5.0% (3.5 to 6.5) | 1.1% (0.8 to 1.5) |
| Background DR—referable (R3) | 23 | 3.9% (2.2 to 5.5) | 0.9% (0.5 to 1.2) |
| Proliferative DR (R4) | 21 | 3.5% (2.0 to 5.0) | 0.8% (0.5 to 1.1) |
| Any retinopathy | 206 | 34.5% (31.0 to 38.1) | 7.9% (6.8 to 8.9) |
| Maculopathy grade | |||
| No maculopathy (M0) | 471 | 79.7% (76.7 to 82.6) | 95.4% (94.6 to 96.2) |
| Maculopathy—observable (M1) | 26 | 4.4% (2.7 to 6.1) | 1.0% (0.6 to 1.4) |
| Maculopathy—referable (M2) | 94 | 15.9% (13.4 to 18.4) | 3.7% (2.9 to 4.2) |
| Any maculopathy | 120 | 20.3% (17.4 to 23.2) | 4.6% (3.8 to 5.4) |
| Any retinopathy and/or maculopathy | 243 | 36.8% (33.3 to 40.2) | 8.4% (7.3 to 9.5) |
| Sight-threatening DR (R4 and/or M2) | 104 | 17.5% (15.1 to 20.0) | 4.0% (3.3 to 4.7) |
| Any laser scars | 39 | 6.4% (4.5 to 8.2) | 1.5% (1.0 to 1.9) |