Table 2. Odds of treatment started by age 3 and 5 among children with amblyopia and/or strabismus.
| Covariate | Category | Age 3 Adjusteda OR (95%CI) | Age 5 Adjusteda OR (95%CI) |
|---|---|---|---|
| Eye condition | Strabismus alone | 1.00 | 1.00 |
| Refractive amblyopia | 0.07 (0.04–0.12) | 0.21 (0.12–0.38) | |
| Strabismic/mixed amblyopia | 0.54 (0.29–0.99) | 2.16 (0.71–6.57) | |
| Sex | Girls | 1.00 | 1.00 |
| Boys | 1.26 (0.79–2.03) | 0.74 (0.43–1.27) | |
| Ethnicity | White | 1.00 | 1.00 |
| Non-white | 0.94 (0.42–2.08) | 0.41 (0.17–0.99) | |
| Birth order | 1 | 1.00 | 1.00 |
| 2 | 1.03 (0.59–1.81) | 0.78 (0.41–1.49) | |
| 3+ | 1.02 (0.53–1.96) | 0.94 (0.46–1.95) | |
| Gestational age | ≥37 weeks | 1.00 | 1.00 |
| <37 weeks | 1.10 (0.47–2.57) | 0.69 (0.28–1.71) | |
| Maternal education | A-levels or higher | 1.00 | 1.00 |
| O-levels | 0.99 (0.56–1.73) | 1.12 (0.59–2.12) | |
| None | 1.38 (0.65–2.97) | 1.22 (0.52–2.87) | |
| Household language | English | 1.00 | 1.00 |
| Non-English | 0.54 (0.08–3.47) | 1.93 (0.31–11.91) | |
| Household income | ≥£20800 | 1.00 | 1.00 |
| £10400-£20800 | 1.08 (0.58–2.01) | 1.14 (0.56–2.34) | |
| <£10400 | 0.96 (0.52–1.77) | 0.98 (0.48–1.99) |
a Odds ratios adjusted for all covariates and sample weights.