Distribution of corneal blindness in APEDS by age, sex, socioeconomic status, and area of residence
| Corneal blindness | ||||
|---|---|---|---|---|
| Total (n=10293) | Both eyes (n=13) No (%) | One eye (n=73) No (%) | At least one eye (n=86) No (%) | |
| *p=0.069 for corneal blindness in both eyes, and p<0.0001 for corneal blindness in one eye and at least one eye; univariate χ2 test. | ||||
| †p=0.111, 0.282, 0.106 for corneal blindness in both eyes, in one eye and at least one eye, respectively; univariate χ2 test. | ||||
| ‡p=0.006, 0.189, 0.015 for corneal blindness in both eyes, in one eye and at least one eye, respectively; univariate χ2 test. Socioeconomic status defined according to monthly per capita income in Indian rupees: extreme lower ≤200 (US$4.5), lower 201–500, middle 501–2000, and upper >2000. Data on socioeconomic status not available for 193 participants. | ||||
| §p=0.450, 0.212, 0.222 for corneal blindness in both eyes, in one eye and at least one eye, respectively; univariate χ2 test. Hyderabad is urban area, West Godavari is relatively well off rural area, and Adilabad and Mahabubnagar are poor rural areas. | ||||
| Age group (years)* | ||||
| ≤15 | 2861 | 0 | 2 (0.07%) | 2 (0.07%) |
| 16–29 | 1845 | 1 (0.05%) | 5 (0.27%) | 6 (0.32%) |
| 30–39 | 1863 | 4 (0.21%) | 16 (0.85%) | 20 (1.06%) |
| 40–49 | 1424 | 2 (0.14%) | 8 (0.56%) | 10 (0.70%) |
| 50–59 | 1047 | 4 (0.38%) | 10 (0.95%) | 14 (1.33%) |
| 60–69 | 900 | 1 (0.11%) | 17 (1.89%) | 18 (2.00%) |
| ≥70 | 353 | 1 (0.28%) | 15 (4.25%) | 16 (4.53%) |
| Sex† | ||||
| Male | 4854 | 9 (0.18%) | 39 (0.80%) | 48 (0.98%) |
| Female | 5439 | 4 (0.07%) | 34 (0.62%) | 38 (0.69%) |
| Socioeconomic status‡ | ||||
| Extreme lower | 1354 | 6 (0.44%) | 14 (1.03%) | 20 (1.47%) |
| Lower | 5212 | 5 (0.09%) | 36 (0.69%) | 41 (0.78%) |
| Middle | 3172 | 2 (0.06%) | 21 (0.66%) | 23 (0.72%) |
| Upper | 362 | 0 | 0 | 0 |
| Area of residence§ | ||||
| Hyderabad | 2522 | 5 (0.20%) | 16 (0.63%) | 21 (0.83%) |
| West Godavari | 2503 | 1 (0.04%) | 14 (0.55%) | 15 (0.59%) |
| Adilabad | 2690 | 4 (0.15%) | 17 (0.63%) | 21 (0.78%) |
| Mahabubnagar | 2578 | 3 (0.12%) | 26 (1.00%) | 29 (1.12%) |