Table 1.
Sample characteristics and prevalence of self-reported cataract.
| Explanatory Factors | Sample Characteristics | Prevalence of Self-Reported Cataract | ||
|---|---|---|---|---|
| Socio-Demographics | Sample N = 3649 |
Weighted % (95%CI) |
No. of People with Cataract N = 167 |
* Weighted % (95%CI): 4.4 (3.4–5.8) |
| Age (years) | ||||
| 50–59 | 1607 | 49.8 (46.8–52.9) | 40 | 2.5 (1.5–4.0) |
| 60–69 | 1176 | 30.8 (28.5–33.3) | 55 | 3.9 (2.6–5.8) |
| ≥70 | 866 | 19.4 (17.3–21.7) | 72 | 10.2 (6.9–14.8) |
| Gender | ||||
| Male | 1551 | 43.9 (40.9–47.0) | 64 | 4.7 (3.1–7.1) |
| Female | 2098 | 56.1 (53.0–59.1) | 103 | 4.2 (3.0–5.8) |
| Ethnicity | ||||
| Black | 1975 | 61.3 (56.8–65.5) | 74 | 3.2 (2.4–4.5) |
| White | 255 | 7.7 (5.5–10.8) | 17 | 6.4 (2.5–15.5) |
| Coloured | 647 | 10.9 (8.7–13.6) | 37 | 5.8 (3.1–10.5) |
| Asian | 287 | 3.2 (2.3–4.3) | 19 | 7.2 (3.6–14.0) |
| Education | ||||
| No schooling | 1331 | 37.2 (33.9–40.6) | 44 | 4.1 (2.6–6.4) |
| Incomplete Primary | 784 | 20.8 (18.3–23.6) | 39 | 3.5 (2.1–5.8) |
| Completed Primary | 742 | 18.4 (16.2–20.9) | 37 | 5.1 (3.1–8.4) |
| Secondary plus | 792 | 23.5 (20.6–26.8) | 47 | 5.2 (3.2–8.5) |
| Wealth | ||||
| Low | 1520 | 41.3 (36.6–46.2) | 93 | 3.4 (2.4–5.0) |
| High | 2111 | 58.7 (53.8–63.5) | 72 | 5.8 (4.1–8.1) |
| Geo-locality | ||||
| Rural | 1203 | 65.1 (59.2–70.6) | 35 | 2.2 (1.3–3.7) |
| Urban | 2443 | 34.9 (29.4–40.8) | 131 | 5.6 (4.2–7.5) |
| Quality of Life | ||||
| Low | 209 | 7.0 (5.5–8.7) | 8 | 2.3 (0.9–6.0) |
| Medium | 2325 | 64.4 (60.9–67.8) | 106 | 4.0 (2.9–5.6) |
| High | 1078 | 28.6 (25.2–32.3) | 53 | 5.9 (3.4–5.8) |
| Co-morbidities | ||||
| Stroke | ||||
| Yes | 139 | 4.0 (3.0–5.4) | 11 | 8.4 (3.7–17.7) |
| No | 3510 | 96.0 (94.6–97.0) | 156 | 4.2 (3.2–5.6) |
| Hypertension | ||||
| Yes | 1115 | 30.2 (27.1–33.5) | 58 | 9.1 (6.7–12.3) |
| No | 2534 | 69.8 (66.5–72.9) | 109 | 2.4 (1.4–3.9) |
| Depression | ||||
| Yes | 113 | 2.9 (2.1–3.9) | 13 | 17.5 (7.9–34.4) |
| No | 3536 | 97.1 (96.1–97.9) | 154 | 4.0 (3.0–5.3) |
| Diabetes | ||||
| Yes | 358 | 9.1 (7.6–10.7) | 45 | 13.3 (8.2–20.6) |
| No | 3291 | 90.9 (89.3–92.4) | 122 | 3.5 (2.6–4.8) |
| Obesity | ||||
| Yes | 1519 | 46.8 (43.3–50.4) | 77 | 4.2 (3.1–5.8) |
| No | 2052 | 52.1 (48.5–55.7) | 87 | 4.5 (3.1–6.7) |
| Health behaviours | ||||
| Alcohol use (ever) | ||||
| Yes | 996 | 25.1 (22.5–28.0) | 45 | 3.7 (2.5–5.5) |
| No | 2653 | 74.9 (72.0–77.6) | 122 | 4.7 (3.4–6.3) |
| Tobacco use (ever) | ||||
| Yes | 1294 | 33.4 (30.5–36.5) | 55 | 3.8 (2.4–6.1) |
| No | 2355 | 66.6 (63.5–69.5) | 112 | 4.7 (3.5–6.4) |
* The percentages were weighted to the general South African population.