Table 1.
Summary of data characteristics. 1Random blood sugar > 160 mg/dl and HbA1c > 6.5% at screening.
| SMART-India 1 | SMART-India 2 | |
|---|---|---|
| Dataset characteristics | ||
| Number of participants | 7288 | 2490 |
| Number of eyes | 12,708 | 3539 |
| Number of images per eye | 2-field (macula, optic disc) | 2-field (macula, optic disc) |
| Ethnicity | Indian | Indian |
| Patient demographics | ||
| Age, years | 54.40 (10.72) | 55.38 (9.28) |
| Gender | ||
| Female | 3714 (50.96%) | 823 (33.05%) |
| Male | 3573 (49.02%) | 1667 (66.95%) |
| Other | 1 (0.01%) | 0 (0.00%) |
| Smokers | 391 (5.36%) | 91 (3.65%) |
| Systemic risk factors | ||
| Body-mass index | 26.06 (4.55) | 25.06 (3.51) |
| Median diabetes duration, years | 5 (0–60) | 12 (0–46) |
| Blood pressure, mmHg | ||
| Systolic | 137.10 (21.29) | 141.31 (19.54) |
| Diastolic | 85.06 (11.98) | 84.44 (10.44) |
| Diabetes status | ||
| Diabetic | 4121 (56.55%) | 2490 (100.0%) |
| Unknown1 | 3167 (43.45%) | 0 (0.00%) |
| HbA1c, % | 7.86 (2.23) | 8.47 (1.94) |
| Eye characteristics | ||
| Non-referable DR | 12,111 (95.30%) | 398 (11.25%) |
| No DR | 11,563 (90.99%) | 214 (6.05%) |
| Mild non-proliferative DR | 548 (4.31%) | 184 (5.20%) |
| Referable DR | 597 (4.70%) | 3141 (88.75%) |
| Moderate non-proliferative DR | 480 (3.78%) | 1401 (39.59%) |
| Severe non-proliferative DR | 65 (0.51%) | 661 (18.68%) |
| Proliferative DR | 52 (0.41%) | 1079 (30.49%) |
| Diabetic macular oedema | 407 (3.20%) | 2143 (60.55%) |