Multivariate logistic model for “unmet need”
| Independent variables | Odds ratio (95% CI) |
|---|---|
| Age (years) | |
| 5–15 | 1 |
| 16–25 | 1.09 (0.64 to 1.85) |
| 26–35 | 0.99 (0.53 to 1.88) |
| 36–45 | 1.04 (0.54 to 1.95) |
| 46–55 | 2.05 (1.17 to 3.60) |
| 56 and over | 3.17 (1.78–5.64) |
| Education | |
| None | 1 |
| Up to 5 years | 0.37 (0.20 to 0.71) |
| 6–12 years | 0.44 (0.26 to 0.75) |
| Over 12 years | 0.27 (0.15 to 0.51) |
| Type of refractive error | |
| None | 1 |
| Myopia | 18.67 (9.09 to 38.37) |
| Hyperopia | 7.94 (4.20 to 15.01) |
| Astigmatism | 1.61 (1.17 to 2.22) |