Characteristics of the 262 control mothers and the 95 cataract cases. The odds ratios are unadjusted for confounding
| Number (%) | ||||
|---|---|---|---|---|
| Characteristics | Controls | Cataract cases | Odds ratio (95% CL) | p Value |
| Age (years): | ||||
| 35–39 | 91 (34.7) | 12 (12.6) | 1 (referent) | |
| 40–45 | 171 (65.3) | 83 (87.4) | 3.7 (1.9 to 7.0) | <0.001 |
| Outdoor work: | 34 (13.0) | 32 (33.7) | 3.4 (2.0 to 5.9) | <0.001 |
| Low income (<1000 rupees/month) | 82 (31.3) | 69 (72.6) | 5.8 (3.5 to 9.8) | <0.001 |
| Body mass index (quartiles): | ||||
| 13.7–18.7 | 52 (19.8) | 37 (38.9) | 1 (referent) | |
| –21.4 | 62 (23.7) | 29 (30.5) | 0.7 (0.4 to 1.2) | 0.178 |
| –24.5 | 71 (27.1) | 18 (18.9) | 0.4 (0.2 to 0.7) | 0.002 |
| –43.8 | 77 (29.4) | 11 (11.6) | 0.2 (0.1 to 0.4) | <0.001 |
| Childbearing: | ||||
| 1–3 babies | 134 (51.2) | 31 (32.6) | 1 (referent) | |
| 4–6 babies | 114 (43.5) | 49 (51.6) | 1.9 (1.1 to 3.1) | 0.018 |
| 7–11 babies | 14 (5.3) | 15 (15.8) | 4.6 (2.0 to 10.6) | <0.001 |
| >3 babies | 128 (48.9) | 64 (67.4) | 2.2 (1.3 to 3.5) | 0.003 |
| Pregnancies: | ||||
| 1–3 | 93 (35.5) | 25 (26.3) | 1 (referent) | |
| 4–6 | 138 (52.7) | 52 (54.7) | 1.4 (0.8 to 2.4) | 0.224 |
| 7–11 | 31 (11.8) | 18 (18.9) | 2.2 (1.0 to 4.5) | 0.037 |