In the district Chikmagalur, 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 11.6%.
Among the diabetics the prevalence of diabetic retinopathy was 13.8%. Prevalence of maculopathy was 5.8% and that of any retinopathy or maculopathy was 13.8%. Prevalence of sight threatening DR was 2.2%.
| Diabetics Examined | Male(N=1112) | Female(N=1618) | Total(N=2730) | |||
|---|---|---|---|---|---|---|
| n | % | n | % | n | % | |
| Known diabetes | 90 | 8.2 | 139 | 8.7 | 229 | 8.5 |
| Newly diagnosed diabetes | 25 | 2.3 | 58 | 3.6 | 83 | 3.1 |
| Total | 115 | 10.5 | 197 | 12.4 | 312 | 11.6 |
| Demographic Variable | Diabetic assessed for DR | DR cases | Prevalence % |
|---|---|---|---|
| Gender | |||
| Male | 81 | 15 | 18.5 |
| Female | 143 | 16 | 11.2 |
| Age Group | |||
| 50 – 59 | 73 | 6 | 8.2 |
| 60 – 69 | 94 | 13 | 13.8 |
| 70 – 79 | 44 | 7 | 15.9 |
| 80+ | 13 | 5 | 38.5 |
| All ages | 224 | 31 | 13.8 |
| Total(N=224) | n | % |
|---|---|---|
| Retinopathy | ||
| No visible retinopathy(R0) | 193 | 86.2 |
| Any retinopathy | 31 | 13.8 |
| Mild(R1) | 23 | 10.3 |
| Observable background(R2) | 4 | 1.8 |
| Referable(R3) | 4 | 1.8 |
| Proliferative(R4) | 0 | 0.0 |
| Maculopathy | ||
| No maculopathy (M0) | 211 | 94.2 |
| Any Maculopathy | 13 | 5.8 |
| Observable (M1) | 8 | 3.6 |
| Referable (M2) | 5 | 2.2 |
| Any Retinopathy and /or Maculopathy | 31 | 13.8 |
| Sight Threatening DR (R4 or M2) | 5 | 2.2 |
| Laser Scars | ||
| No Laser Scars | 224 | 100.0 |
| Pan retinal laser | 0 | 0.0 |
| Macular laser | 0 | 0.0 |
| Pan retinal and macular laser | 0 | 0.0 |