| Changes in labor patterns over 50 years. | |
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MedLine Citation:
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PMID: 22542117 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: The objective of the study was to examine differences in labor patterns in a modern cohort compared with the 1960s in the United States. STUDY DESIGN: Data from pregnancies at term, in spontaneous labor, with cephalic, singleton fetuses were compared between the Collaborative Perinatal Project (CPP, n = 39,491 delivering 1959-1966) and the Consortium on Safe Labor (CSL; n = 98,359 delivering 2002-2008). RESULTS: Compared with the CPP, women in the CSL were older (26.8 ± 6.0 vs 24.1 ± 6.0 years), heavier (body mass index 29.9 ± 5.0 vs 26.3 ± 4.1 kg/m(2)), had higher epidural (55% vs 4%) and oxytocin use (31% vs 12%), and cesarean delivery (12% vs 3%). First stage of labor in the CSL was longer by a median of 2.6 hours in nulliparas and 2.0 hours in multiparas, even after adjusting for maternal and pregnancy characteristics, suggesting that the prolonged labor is mostly due to changes in practice patterns. CONCLUSION: Labor is longer in the modern obstetrical cohort. The benefit of extensive interventions needs further evaluation. |
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Authors:
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S Katherine Laughon; D Ware Branch; Julie Beaver; Jun Zhang |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Intramural Date: 2012-03-10 |
Journal Detail:
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Title: American journal of obstetrics and gynecology Volume: 206 ISSN: 1097-6868 ISO Abbreviation: Am. J. Obstet. Gynecol. Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-04-30 Completed Date: 2012-07-27 Revised Date: 2013-05-22 |
Medline Journal Info:
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Nlm Unique ID: 0370476 Medline TA: Am J Obstet Gynecol Country: United States |
Other Details:
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Languages: eng Pagination: 419.e1-9 Citation Subset: AIM; IM |
Copyright Information:
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Published by Mosby, Inc. |
Affiliation:
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Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Age Factors Body Mass Index Delivery, Obstetric / methods, statistics & numerical data, trends* Female Humans Labor Stage, First Labor Stage, Second Labor, Obstetric / physiology* Linear Models Multivariate Analysis Parity Physician's Practice Patterns Pregnancy Pregnancy Outcome Retrospective Studies Time Factors United States |
| Grant Support | |
ID/Acronym/Agency:
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HHSN267200603425C/HD/NICHD NIH HHS; HHSN267200603425C//PHS HHS; Z99 HD999999/HD/NICHD NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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