TY - JOUR
T1 - Does Time of Delivery Influence the Risk of Neonatal Morbidity?
AU - Brookfield, Kathleen F.
AU - O'Malley, Katharine
AU - El-Sayed, Yasser Y.
AU - Blumenfeld, Yair J.
AU - Butwick, Alexander J.
N1 - Publisher Copyright:
Copyright © 2016 by Thieme Medical Publishers, Inc.
PY - 2016/4/1
Y1 - 2016/4/1
N2 - Objective To examine whether time of delivery influences the risk of neonatal morbidity among women with singleton pregnancies. Study Design Secondary analysis of data from the Maternal Fetal Medicine Units Network Factor V Leiden Mutation study. We categorized time of delivery as day (07:00-16:59), evening (17:00-23:59), and overnight (midnight-06:59). Severe neonatal morbidity was defined by at least one of the following: respiratory distress syndrome, transient tachypnea of the newborn, sepsis, seizures, neonatal intensive care admission, or a 5-minute APGAR ≤3. We calculated frequencies of severe neonatal morbidity by time of delivery. Multivariate analysis was performed to determine whether time of delivery was independently associated with severe neonatal morbidity. Results Among 4,087 women, 1,917 (46.9%) delivered during the day, 1,140 (27.9%) delivered in the evening, and 1,030 (25.2%) delivered overnight. We observed no significant differences in the rates of neonatal morbidity between delivery time periods (day: 12.3%; evening: 12.8%; overnight: 12.6%; p = 0.9). No significant association was observed between time of delivery and neonatal morbidity after adjustment for maternal, obstetric, and peripartum factors. Conclusion Our findings suggest that time of delivery is not associated with severe neonatal morbidity.
AB - Objective To examine whether time of delivery influences the risk of neonatal morbidity among women with singleton pregnancies. Study Design Secondary analysis of data from the Maternal Fetal Medicine Units Network Factor V Leiden Mutation study. We categorized time of delivery as day (07:00-16:59), evening (17:00-23:59), and overnight (midnight-06:59). Severe neonatal morbidity was defined by at least one of the following: respiratory distress syndrome, transient tachypnea of the newborn, sepsis, seizures, neonatal intensive care admission, or a 5-minute APGAR ≤3. We calculated frequencies of severe neonatal morbidity by time of delivery. Multivariate analysis was performed to determine whether time of delivery was independently associated with severe neonatal morbidity. Results Among 4,087 women, 1,917 (46.9%) delivered during the day, 1,140 (27.9%) delivered in the evening, and 1,030 (25.2%) delivered overnight. We observed no significant differences in the rates of neonatal morbidity between delivery time periods (day: 12.3%; evening: 12.8%; overnight: 12.6%; p = 0.9). No significant association was observed between time of delivery and neonatal morbidity after adjustment for maternal, obstetric, and peripartum factors. Conclusion Our findings suggest that time of delivery is not associated with severe neonatal morbidity.
KW - delivery, obstetric
KW - infant, newborn
KW - morbidity
KW - time
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U2 - 10.1055/s-0035-1567891
DO - 10.1055/s-0035-1567891
M3 - Article
C2 - 26595143
AN - SCOPUS:84948705153
SN - 0735-1631
VL - 33
SP - 502
EP - 509
JO - American journal of perinatology
JF - American journal of perinatology
IS - 5
ER -