In the district Kadapa, diabetic retinopathy (DR) survey was conducted along with the RAAB survey using the RAAB6+DR methodology. All the known diabetics and newly diagnosed diabetics (random blood sugar ≥ 200mg/dl) aged 50 years and above were assessed for DR. Scottish classification was used for DR grading. It was found that prevalence of total diabetics in population aged ≥50 years was 18.4%.
Among the diabetics the prevalence of diabetic retinopathy was 27.3%. Prevalence of maculopathy was 13.2% and that of any retinopathy or maculopathy was 27.3%. Prevalence of sight threatening DR was 6.2%.
| Diabetics Examined | Male(N=1078) | Female(N=1572) | Total(N=2650) | |||
|---|---|---|---|---|---|---|
| n | % | n | % | n | % | |
| Known diabetes | 172 | 16.0 | 167 | 10.6 | 339 | 12.8 |
| Newly diagnosed diabetes | 61 | 5.7 | 88 | 5.6 | 149 | 5.6 |
| Total | 233 | 21.6 | 255 | 16.2 | 488 | 18.4 |
| Demographic Variable | Diabetic assessed for DR | DR cases | Prevalence % |
|---|---|---|---|
| Gender | |||
| Male | 207 | 53 | 25.6 |
| Female | 226 | 65 | 28.8 |
| Age Group | |||
| 50 – 59 | 163 | 42 | 25.8 |
| 60 – 69 | 187 | 55 | 29.4 |
| 70 – 79 | 70 | 17 | 24.3 |
| 80+ | 13 | 4 | 30.8 |
| All ages | 433 | 118 | 27.3 |
| Total(N=433) | n | % |
|---|---|---|
| Retinopathy | ||
| No visible retinopathy(R0) | 315 | 72.7 |
| Any retinopathy | 118 | 27.3 |
| Mild(R1) | 68 | 15.7 |
| Observable background(R2) | 15 | 3.5 |
| Referable(R3) | 30 | 6.9 |
| Proliferative(R4) | 5 | 1.2 |
| Maculopathy | ||
| No maculopathy (M0) | 376 | 86.8 |
| Any Maculopathy | 57 | 13.2 |
| Observable (M1) | 31 | 7.2 |
| Referable (M2) | 26 | 6.0 |
| Any Retinopathy and /or Maculopathy | 118 | 27.3 |
| Sight Threatening DR (R4 or M2) | 27 | 6.2 |
| Laser Scars | ||
| No Laser Scars | 432 | 99.8 |
| Pan retinal laser | 1 | 0.2 |
| Macular laser | 0 | 0 |
| Pan retinal and macular laser | 0 | 0.0 |