| Variable | Estimate (SE) | p Value | OR (95% CI) |
| Intercept | 2.40 (1.04) | 0.0217 | |
| VA (⩾20/60 to <20/40) | −0.79 (1.51) | 0.6024 | 0.46 (0.02 to 8.83) |
| VA (<20/60) | −3.50 (1.17) | 0.0027 | 0.03 (0.003 to 0.30) |
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OR, odds ratio; VA, visual acuity.









