Clinical characteristics | OR | 95%CI | P |
---|---|---|---|
Birth weight, g | 0.995 | 0.991–0.999 | 0.025 |
Gestational age, weeks | 1.414 | 0.761–2.628 | 0.273 |
Duration of O2 therapy, days | 0.988 | 0.937–1.042 | 0.663 |
Duration of mechanical ventilation, days | 1.021 | 0.964–1.081 | 0.472 |
Patent ductus arteriosus | 13.355 | 2.950–60.469 | 0.001 |