Table 2.
Risk ratios for each of potential predictive factors- visual acuity
| Factor | Total N | N (%) with recurrence | Unadjusted risk ratio (95% confidence interval) | Risk ratio adjusted for treatment intensity/ weaning (95% confidence interval) | Composite model 1 (Full model) | Composite model 2 (Reduced model) |
|---|---|---|---|---|---|---|
| Amblyopic eye visual acuity at diagnosis | ||||||
| 20/40 to 20/80 | 55 | 10 (18%) | 1.3 (0.96, 1.6) | 1.1 (0.87, 1.4) | -- | -- |
| 20/100 to 20/200 | 14 | 7 (50%) | per line | per line | ||
| Interocular acuity difference at diagnosis | ||||||
| 3 | 14 | 3 (21%) | 1.2 (0.89, 1.6) | 1.1 (0.82, 1.4) | -- | -- |
| 4 | 25 | 4 (16%) | per line | per line | ||
| 5 | 16 | 5 (31%) | ||||
| 6 | 9 | 4 (44%) | ||||
| 7 | 3 | 0 (0%) | ||||
| 8 | 2 | 1 (50%) | ||||
| Amblyopic eye visual acuity at cessation of patching | ||||||
| 20/16 | 2 | 1 (50%) | 0.66 (0.46, 0.94) | 0.68 (0.51, 0.90) | -- | -- |
| 20/20 | 14 | 4 (29%) | per line | per line | ||
| 20/25 | 27 | 9 (33%) | ||||
| 20/32 | 20 | 3 (15%) | ||||
| 20/40 | 5 | 0 (0%) | ||||
| 20/50 | 1 | 0 (0%) | ||||
| Interocular acuity difference at cessationof patching | ||||||
| −1 | 4 | 2 (50%) | 0.53 (0.34, 0.82) | 0.57 (0.35, 0.91) | 0.51 (0.34, 0.77) | 0.52 (0.32, 0.82) |
| 0 | 28 | 10 (36%) | per line | per line | per line | per line |
| 1 | 21 | 4 (19%) | ||||
| 2 | 13 | 1 (8%) | ||||
| 3 | 3 | 0 (0%) | ||||
| Lines of improvement in visual acuity from diagnosis to cessation of patching | ||||||
| 2 | 1 | 0 (0%) | 1.7 (1.3, 2.2) | 1.5 (1.1, 2.0) | 1.3 (0.99, 1.6) | 1.3 (1.1, 1.7) |
| 3 | 23 | 3 (13%) | per line | per line | per line | per line |
| 4 | 22 | 2 (9%) | ||||
| 5 | 12 | 6 (50%) | ||||
| 6 | 7 | 3 (43%) | ||||
| 7 | 4 | 3 (75%) |