JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES) ›› 2016, Vol. 54 ›› Issue (5): 56-61.doi: 10.6040/j.issn.1671-7554.0.2015.986

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Influencing factors of adverse outcomesin term neonates delivered by elective caesarean

HONG Haijie1, SUN Wenjuan1, ZHANG Yuan2, XU Yongping1   

  1. 1. Department of Obstetrics;
    2. Center of Evidence-based Medicine, the Second Hospital of Shandong University, Jinan 250033, Shandong, China
  • Received:2015-10-17 Online:2016-05-16 Published:2016-05-16

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Abstract: Objective To analyze the influencing factors of adverse outcomes in neonates delivered at term by elective caesarean. Methods Clinical data of mothers and babies delivered by elective caesarean section during Nov.1, 2011 and Oct.31, 2014 at the Second Hospital of Shandong University were retrospectively reviewed. The neonatal adverse outcomes were analyzed with t-test, chi-square test and logistic regression analysis, including transference to NICU and respiratory diseases. Results A total of 3,290 mothers and their neonates were enrolled, of which 250 neonates needed to be transferred to NICU, and 110 neonates developed a respiratory disease. The factors that caused the neonates to be transferred to NICU were parity, BMI, delivery gestational age and fetal sex. The factors that caused the neonates to develop a respiratory disease were parity, delivery gestational age and fetal sex. The risk of adverse outcomes in neonates whose mothers parity was three times and above was significantly higher. The risk of transference to NICU was lower in neonates delivered by mothers with smaller BMI. The risk of transference to NICU for neonates delivered in 山 东 大 学 学 报 (医 学 版)54卷5期 -洪海洁,等.足月选择性剖宫产分娩新生儿不良结局的影响因素 \=-37+0-6 weeks was 1.9 times than those delivered in 39+0-7 weeks(OR=1.9, 95%CI=1.2-3.0). The risk of respiratory disease for neonates delivered in 37+0-6 weeks and 38+0-6 weeks were respectively 2.5 times and 1.8 times than those delivered in 39+0-7 weeks(OR=2.5, 95%CI=1.4-4.7 and OR=1.8, 95%CI=1.1-2.7). The risk of a respiratory disease and transference to NICU in male neonates were respectively 2.2 times and 1.3 times than in female neonates(OR=2.2, 95%CI=1.4~3.4 and OR=1.3, 95%CI=1.0-1.7). The differences were statistically significant(all P<0.05). Conclusion The best delivery gestational age for elective cesarean section is 39-40 weeks. Cesarean sections conducted shortly after onset of labor do not reduce the risk of neonatal adverse outcomes. The risk of adverse outcomes in male neonates is higher than in female neonates. The risk of neonatal adverse outcomes in mothers with higher BMI, or whose parity is three times and above is increased.

Key words: Term baby, Cesarean section, Elective, Neonatal adverse outcomes, Influencing factors

CLC Number: 

  • R719.8
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