Abstract：OBJECTIVE: To identify the risk factors for patent ductus arteriosus (PDA) in neonates. METHODS: Fifty infants with PDA and 100 infants without PDA were enrolled. Chi-square test, Student′s t test and the linear correlation analysis were used to study the clinical data. Logistic regression analysis was used to investigate the independent risk factors for PDA. RESULTS: The prevalence of PDA was negatively correlated with the gestation age (r=-0.03, P<0.05) and birth weight (r=-0.04, P<0.05). Oxygen inhalation was a protective factor for the development of PDA. Fetal distress, meconium-stained amniotic fluid, oligohydramnios, cord entanglement, 1 minute Apgar score<8, maternal infection and hypoxic-ischemic encephalopathy were the independent risk factors for the development of PDA. CONCLUSIONS: The incidence of PDA can be reduced by preventing maternal infection, premature birth, low birth weight and hypoxia.
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