Site-to-Site Variation in the Factors Affecting Cesarean Section Rates
William J. Hueston, MD
Arch Fam Med. 1995;4(4):346-351.
Abstract
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Objective
To investigate the influence of various factors, including physician specialty, on the risk of cesarean birth.
Design
Retrospective medical chart review.
Participants
Review of 7367 deliveries at five hospitals in five different states.
Main Outcome Measure
Method of delivery.
Results
Logistic regression modeling using clinical and demographic risk factors found that the risk factors that influence cesarean delivery varied considerably among different hospitals. Only primiparity (relative risk, 2.22 to 5.81 among sites) and multiple gestation (relative risk, 4.74 to 100.48 depending on the site) were associated with increased cesarean delivery in all sites. Private insurance, preeclampsia, and having an obstetrician as the primary medical provider were also independently associated with cesarean delivery in four sites. Examination of 50 other variables showed no consistent independent associations with cesarean delivery.
Conclusions
The clinical and nonclinical factors that influence cesarean section are highly site dependent. This implies that physicians practicing at different sites are influenced by different criteria when deciding whether a cesarean delivery should be performed.
Author Affiliations
for the Factors Affecting Cesarean Section Study Group
From St Claire Medical Center, Morehead, Ky, and the University of Kentucky, Lexington. Dr Hueston is now with Eau Claire (Wis) Family Medicine. Members of the Factors Affecting Cesarean Section Study Group are listed at the end of the article.
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