Table 4.
Profile of DM patients and prevalence of DR in various groups (blocks)
| Group A no. (%) | Group B no. (%) | Group C no. (%) | Group D no. (%) | Total no. (%) | |
|---|---|---|---|---|---|
| Total registered | 2524 | 2973 | 2159 | 1298 | 8954 |
| Total screened for DR | 239 | 389 | 433 | 411 | 1472 |
| Coverage | 9.5% | 13.1% | 20.1% | 31.7% | 16.4% |
| Gradable images | 208 | 337 | 374 | 356 | 1275 |
| Prevalence of diabetic retinopathy (in gradable images in one or both eyes of person n=1275) | |||||
| Prevalence of DR | 21 (10.1%) | 30 (8.9%) | 29 (7.8%) | 46 (12.9%) | 126 (9.9) |
| Prevalence of DME | 2 (0.9%) | 3 (0.9%) | 2 (0.5%) | 7 (1.9%) | 14 (1.1) |
| Prevalence of STDR | 4 (1.9%) | 6 (1.8%) | 5 (1.3%) | 9 (2.5%) | 24 (1.9) |
| Proportion of STDR in DR patients | 19.1% | 20.0% | 17.2% | 19.5% | 19.1% |
| Visual status of screened patients in blocks | |||||
| Mild or no visual impairment | 142 (59.4) | 249 (64.0) | 277 (63.9) | 283 (68.8) | 951 (64.60) |
| Moderate visual impairment | 60 (25.1) | 82 (21.1) | 94 (21.7) | 78 (18.9) | 314 (21.30) |
| Severe visual impairment | 20 (8.4) | 25 (6.4) | 26 (6.0) | 22 (5.5) | 93 (6.30) |
| Blindness | 17 (7.1) | 33 (8.5) | 36 (8.4) | 28 (6.8) | 114 (7.80) |
DM - Diabetes mellitus; DME - Diabetic macular edema; DR - Diabetic retinopathy; STDR - Sight-threatening diabetic retinopathy