ArticleAmerican journal of perinatology2026
Assessing Racial/Ethnic Variation and Trends in Vaginal Birth after Cesarean in California: A Retrospective Cohort Study Using Linked Birth Certificate and Hospital Discharge Records.
Article in American journal of perinatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Increasing the vaginal birth after cesarean (VBAC) rate to 18% was a Healthy People 2020 goal. Detailed data on racial/ethnic differences in VBAC rates is lacking and can inform efforts to equitably increase VBAC rates. This study aimed to assess racial/ethnic variation in VBAC rates and to describe group trends in VBAC rates in California between 2011 and 2021.This retrospective cohort study used a database of birth certificates linked to hospital discharge records. We analyzed singleton, term live births among people who had a history of at least one prior cesarean birth, no identified contraindications to a vaginal birth, and self-identified their racial/ethnic group as Hispanic or non-Hispanic (American Indian-Alaskan Native (AIAN), Asian, Black, Hawaiian/Pacific Islander, or white). VBAC births were identified from birth certificate records. Differences between VBAC rates were assessed using univariable and multivariable Poisson log-linear regression while adjusting for potential confounders.A total of 607,808 birthing people were included (2,234 AIAN, 84,899 Asian, 34,217 Black, 2,559 Hawaiian/Pacific Islander, 334,116 Hispanic, 149,783 white). Over the study period, Hawaiian/Pacific Islander birthing people had the highest average VBAC rate at 11.5% (AIAN, 6.5%; Asian, 8.8%; Black, 8.0%; Hispanic, 7.4%; white, 9.5%). In adjusted models, Black (aRR = 1.06, 95% CI: 1.01-1.11) and Hawaiian/Pacific Islander (aRR = 1.43, 95% CI: 1.27-1.61) birthing people were more likely to have a VBAC compared with white birthing people, while Hispanic birthing people were less likely (aRR = 0.96, 95% CI: 0.93-0.98). VBAC rates increased significantly (
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