Table 5.
Multivariate analysis
| Risk factors | AOR | 95% CI | P value |
|---|---|---|---|
| Gestational age (weeks) | .393 | .159–.972 | .043* |
| Birth weight (grams) | .999 | .994–1.003 | .58 |
| Multiple gestation | 1.376 | .561–3.372 | .49 |
| Sibling affected by ROP | .761 | .136–4.261 | .76 |
| Level of hemoglobin at birth (g/dl) | 1.089 | .734–1.614 | .67 |
| Respiratory distress syndrome | .862 | .176–4.224 | .86 |
| Lowest hemoglobin level (g/dl) | .764 | .387–1.506 | .44 |
| Maximum bilirubin level (mg/dl) | .528 | .322–.867 | .012* |
| Blood transfusion | 2.642 | .660–10.576 | .17 |
| Total days on mechanical ventilation | .963 | .868–1.069 | .48 |
| Total days on non mechanical ventilation | .983 | .851–1.134 | .81 |
| Total days on oxygen supplement | 1.120 | 1.006–1.246 | .038* |
*significant at p value less than 0.05
AOR Adjusted Odds ratio
CI Confidence interval
ROP Retinopathy of Prematurity