Table 5 Odds ratios (95% confidence intervals) for the adjusted association between potential risk factors and corneal opacity (multivariate analyses, stratified by entropion status)*.
| Covariate | Mild | Moderate | Severe |
|---|---|---|---|
| Epilation | 1.12 (0.75 to 1.68) | 0.51 (0.32 to 0.83) | 0.24 (0.13 to 0.45) |
| Age (5 year increments) | 1.12 (1.03 to 1.22) | 1.13 (1.04 to 1.22) | 1.15 (1.05 to 1.27) |
| Female | 1.11 (0.69 to 1.79) | 0.71 (0.44 to 1.14) | 0.70 (0.35 to 1.89) |
| Duration of trichiasis: | |||
| <1 year | 1.0 (reference)† | NA | NA |
| 1−<2 years | 1.35 (0.25 to 7.33)† | NA | NA |
| 2+ years | 2.73 (0.64 to 11.69)† | NA | NA |
*Adjusted for correlation between eyes using generalised estimating equations.
†Mantel Haenszel test for trend, p<0.05.