Stepwise logistic regression analysis of risk factors for ROP
| Log odds ratio (b) | Standard error of b | Odds ratio | 95% CI of odds ratio | |
|---|---|---|---|---|
| *Odds ratio for a decrease of 1 week in gestational age. | ||||
| †Odds ratio for a reduction of 100 g in birth weight. | ||||
| Gestational age at birth | −0.5809 | 0.1183 | 1.788* | 1.418 to 2.254 |
| Birth weight | −0.00243 | 0.000916 | 1.275† | 1.065 to 1.526 |