Logistic-Regression Analysis to Evaluate Factors Affecting Early Perinatal and Neonatal Mortality Before Discharge

VariableOdds Ratio95% CIP
Birth weight (100 g)0.650.61–0.71<.001
5-min Apgar score0.700.64–0.75<.001
Major congenital anomalies10.786.23–18.64<.001
Postnatal steroid for CLD0.250.14–0.45<.01
Gastrointestinal perforation3.271.51–7.10<.01
  • Analysis of the first logistic-regression models showed that increasing birth weight and 5-minute Apgar scores were associated with a decreased risk of death. On the other hand, major congenital anomalies were strongly associated with an increased risk of death. Other risk factors were not significantly associated with the risk of mortality. The results of the second logistic-regression model, including common complications in very low birth weight infants and hospital-level characteristics, showed that postnatal steroid for CLD was associated with a decreased risk of mortality before discharge, whereas PPHN and gastrointestinal perforation were associated with an increased risk.