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Matern Child Health J. 2012 Jul;16(5):1053-62. doi: 10.1007/s10995-011-0830-9.

Elective delivery before 39 weeks: the risk of infant admission to the neonatal intensive care unit.

Author information

  • 1Department of Community and Preventive Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Box 644, Rochester, NY 14642, USA. Claire_Hoffmire@urmc.rochester.edu

Abstract

Despite American College of Obstetricians and Gynecologists guidelines suggesting that non-urgent planned deliveries be scheduled at/after 39 weeks; elective delivery before 39 weeks occurs often in the United States. The objective of this study is to estimate the elective delivery rate between 36(0/7) and 38(6/7) weeks gestation and compare NICU admission rates between elective and non-elective deliveries. We conducted a retrospective cohort (n = 1,577) study. Charts were reviewed for all singleton deliveries (2006-2007) between 36(0/7) and 38(6/7) weeks gestation taking place at one hospital in NYS to determine delivery status. We computed adjusted relative risks (RR) with 95% confidence intervals (CI) for elective delivery in relation to NICU admission using robust Poisson regression. 32.8% of all births were elective: 20.7% of vaginal and 55.7% of cesarean births. Elective delivery increased with increasing gestational age. After controlling for potential confounders, infants born via a vaginal elective delivery (RR = 1.40, CI: 1.00, 1.94), an elective cesarean (RR = 2.05, CI: 1.53, 2.76), or a non-elective cesarean (RR = 2.00, CI: 1.50, 2.66) are at significantly increased risk of NICU admission compared to infants born via a non-elective vaginal delivery. Elective delivery before 39 weeks is common and increases the risk of infant NICU admission.

PMID:
21660603
[PubMed - indexed for MEDLINE]
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