Incidence trends of shoulder dystocia and associated risk factors: A nationwide analysis in the United States

Objective To examine recent incidence trends and characteristics of shoulder dystocia. Methods This is a retrospective cohort study querying the Healthcare Cost and Utilization Project's National Inpatient Sample. The study population included 9 913 838 vaginal deliveries for national estimates...

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Bibliographic Details
Published in:International journal of gynecology and obstetrics 2023-08, Vol.162 (2), p.578-589
Main Authors: Youssefzadeh, Ariane C., Tavakoli, Amin, Panchal, Viraj R., Mandelbaum, Rachel S., Ouzounian, Joseph G., Matsuo, Koji
Format: Article
Language:English
Subjects:
incidence
risk factors
shoulder dystocia
trend
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Summary:Objective To examine recent incidence trends and characteristics of shoulder dystocia. Methods This is a retrospective cohort study querying the Healthcare Cost and Utilization Project's National Inpatient Sample. The study population included 9 913 838 vaginal deliveries for national estimates from January 2016 to December 2019. The main outcome measure was the diagnosis of shoulder dystocia. A binary logistic regression model was used to identify characteristics of shoulder dystocia in multivariable analysis. Results Shoulder dystocia was reported in 228 120 deliveries (23.0 per 1000). The incidence of shoulder dystocia increased from 21.0 to 24.6 per 1000 deliveries during the 4‐year study period (17.1% relative increase, P 
ISSN:0020-7292
1879-3479
DOI:10.1002/ijgo.14699