The evaluation of the antepartum and intrapartum risk factors in predicting the risk of birth asphyxia.

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This study aimed to determine the related antepartum and intrapartum factors of birth asphyxia among neonates born in a tertiary referral hospital. A total of 45 singleton pregnant women who delivered live births with a gestational age of ≥35 weeks and their neonates who suffered from birth asphyxia from June 2016 to June 2021 were included in this retrospective study. Data regarding maternal demographic features, maternal laboratory values, pregnancy complications, and obstetric and neonatal outcomes were collected. Significant risk factors associated with birth asphyxia were nulliparity (odds ratio [OR]=5.357, 95% confidence interval [CI]=2.169-24.950, p=0.001), placental abruption (OR=8.667, 95% CI=2.223-33.784, p=0.002), intrauterine growth restriction (OR=1.394, 95% CI=1.109-8.631, p=0.012), the prolonged second stage of labor (OR=6.121, 95% CI=2.120-17.595, p=0.001), meconium-stained amniotic fluid (OR=7.615, 95% CI=2.394-24.223, p=0.001), bloody amniotic fluid (OR=9.423, 95% CI=2.885-35.232, p=0.001), the presence of FHR category II (OR=12.083, 95% CI=7.081-48.849, p <0.001) and FHR category III before labor (OR=15.500, 95% CI=8.394-56.176, p <0.001). We identified that nulliparity, placental abruption, intrauterine growth restriction, the prolonged second stage of labor, meconium-stained or bloody amniotic fluid, and FHR tracings categories II and III were significantly associated with birth asphyxia.