Evidence map›Paper›PMID 26348175›Full record

Trial reportObstetrics and gynecology2015

The Association of Expanded Access to a Collaborative Midwifery and Laborist Model With Cesarean Delivery Rates.

Melissa G Rosenstein, Malini Nijagal, Sanae Nakagawa, Steven E Gregorich, Miriam Kuppermann

Abstract readClinical Trial
In one paragraph

Trial report in Obstetrics and gynecology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Non-clinical interventions for reducing unnecessary caesarean section.The Cochrane database of systematic reviews · 2018
    Pooled it
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  9. Contrasting Birth Preferences to Practices in El Paso, Texas.Frontiers in global women's health · 2022
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  12. Observational
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Melissa G RosensteinDepartments of Obstetrics, Gynecology, and Reproductive Sciences, Medicine, and Epidemiology & Biostatistics, University of California, San Francisco, San Francisco, Prima Medical Foundation, Novato, and Marin General Hospital, Greenbrae, California; and the Department of Obstetrics and Gynecology, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts.
Malini Nijagal
Sanae Nakagawa
Steven E Gregorich
Miriam Kuppermann

Funding

Engaging University of California Stakeholders for Biorespository ResearchUL1TR000004 · NCATS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI GRANDIS, JENNIFER RUBIN · 2012 to 2015
$78.0M
WOMEN'S REPRODUCTIVE HEALTH RESEARCH CENTERK12HD001262 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Andrea Vashti Jackson · 1998 to 2026
$9.3M
NCATS NIH HHS UL1 TR000004NICHD NIH HHS HD01262NICHD NIH HHS K12 HD001262
6 · The paper itself

Abstract

objectiveTo examine the association between expanded access to collaborative midwifery and laborist services and cesarean delivery rates.

methodsThis was a prospective cohort study at a community hospital between 2005 and 2014. In 2011, privately insured women changed from a private practice model to one that included 24-hour midwifery and laborist coverage. Primary cesarean delivery rates among nulliparous, term, singleton, vertex women and vaginal birth after cesarean delivery (VBAC) rates among women with prior cesarean delivery were compared before and after the change. Multivariable logistic regression models estimated the effects of the change on the odds of primary cesarean delivery and VBAC; an interrupted time-series analysis estimated the annual rates before and after the expansion.

resultsThere were 3,560 nulliparous term singleton vertex deliveries and 1,324 deliveries with prior cesarean delivery during the study period; 45% were among privately insured women whose care model changed. The primary cesarean delivery rate among these privately insured women decreased after the change, from 31.7% to 25.0% (P=.005, adjusted odds ratio [OR] 0.56, 95% confidence interval [CI] 0.39-0.81). The interrupted time-series analysis estimated a 7% drop in the primary cesarean delivery rate in the year after the expansion and a decrease of 1.7% per year thereafter. The VBAC rate increased from 13.3% before to 22.4% afterward (adjusted OR 2.03, 95% CI 1.08-3.80).

conclusionThe change from a private practice to a collaborative midwifery-laborist model was associated with a decrease in primary cesarean rates and an increase in VBAC rates. LEVEL OF EVIDENCE: II.

Indexed as

MidwiferyAdultCesarean SectionFemaleHumansInsurance CoverageObstetricsPregnancyProspective StudiesVaginal Birth after CesareanYoung Adult

Identifiers

PMID26348175
PMCPMC4580519

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.