Obstetrics & Gynecology: November 2014 - Volume 124 - Issue 5 - p 873–880 doi: 10.1097/AOG.0000000000000485 Contents: Original Research Association of Obstetric Intervention With Temporal Patterns of Childbirth Clark, Steven L. MD; Perlin, Jonathan B. MD, PhD; Fraker, Sarah MS; Bush, Jamee MBC; Meyers, Janet A. RN; Frye, Donna R. RN; Garthwaite, Thomas L. MD Abstract OBJECTIVE: To examine the gestational age at and day and time of delivery in current U.S. obstetric practice. METHODS: We examined electronic records from 72 hospitals in 16 states during a 4-month period during 2013. Day of week of delivery, time of day of delivery, and route of delivery were examined in various subpopulations delivering both with and without obstetric intervention. RESULTS: . . . . Three temporal peaks of total and primary cesarean delivery were seen on weekdays, corresponding to immediate preclinic, lunch time, and immediate postclinic timeframes. These peaks were not seen on weekend days. The risk of nonelective primary cesarean delivery during a weekday was approximately one third higher than on a weekend (relative rate 1.36, confidence interval 1.24–1.49). CONCLUSION: . . . During the work week, factors other than medical necessity appear to have a marked association with both timing of delivery and rate of cesarean delivery and may affect up to one third of primary cesarean deliveries.
Posted on: Wed, 22 Oct 2014 21:11:19 +0000
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