Evidence map›Paper›PMID 32859469›Full record

ArticleWomen's health issues : official publication of the Jacobs Institute of Women's Health

The Association between Hospital Frequency of Labor after Cesarean and Outcomes in California.

Mekhala V Dissanayake, Marit L Bovbjerg, Ellen L Tilden, Jonathan M Snowden

Open access · greenAbstract read
In one paragraph

Article in Women's health issues : official publication of the Jacobs Institute of Women's Health. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.1field-weighted citation impact, top 48% of its field
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

3 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Article
  3. Intrapartum Quality of Care among Healthy Women: A Population-Based Cohort Study in an Italian Region.International journal of environmental research and public health · 2024
    Article
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

4 authors at 2 institutions in 1 country.

Mekhala V DissanayakeDepartment of Obstetrics & Gynecology, Oregon Health and Science University, Portland, Oregon. Electronic address: dissanam@ohsu.edu.
Marit L BovbjergCollege of Public Health & Human Sciences, Oregon State University, Corvallis, Oregon.
Ellen L TildenDepartment of Obstetrics & Gynecology, Oregon Health and Science University, Portland, Oregon; Department of Nurse-Midwifery, Oregon Health & Science University School of Nursing, Portland, Oregon.
Jonathan M SnowdenDepartment of Obstetrics & Gynecology, Oregon Health and Science University, Portland, Oregon; School of Public Health, Oregon Health and Science University/Portland State University, Portland, Oregon.
Oregon Health & Science University · USOregon State University · US

Funding

Scholars in Women's Health Research Across the LifespanK12HD043488 · NICHD · OREGON HEALTH & SCIENCE UNIVERSITY · PI MYATT, LESLIE · 2002 to 2023
$10.4M
Cesarean delivery in overweight and obese women: patient and systems factorsR00HD079658 · NICHD · OREGON HEALTH & SCIENCE UNIVERSITY · PI SNOWDEN, JONATHAN M · 2016 to 2018
$725k
NICHD NIH HHS K12 HD043488NICHD NIH HHS R00 HD079658
6 · The paper itself

Abstract

backgroundLabor after cesarean (LAC) is an alternative to planned repeat cesarean delivery. The effect of hospital-level factors on LAC frequency and vaginal birth after cesarean (VBAC) has been relatively understudied. It was our goal to determine if hospital frequency of LAC (number of women undergoing LAC/number of women with previous uterine scars) is associated with increased VBAC and associated outcomes among women undergoing LAC.

methodsWe analyzed 43,331 term, singleton births to women who experienced LAC in California from 2007 to 2010. We conducted multivariable logistic regressions of infant and maternal outcomes for women at hospitals with high LAC frequency (≥median) compared with low LAC frequency (<median), adjusting for maternal and hospital characteristics. We stratified analyses by overall hospital birth volume (categories 1, low; 2, medium; 3, high).

resultsWe did not observe an association between high LAC frequency and VBAC in any category of hospital birth volume in regression models. We found that women in hospitals with high LAC frequency had higher odds of infection in category 1 (low) and 2 (medium) hospitals (category 1 hospitals adjusted odds ratio [aOR], 1.61; 95% confidence interval [CI], 1.04-2.48; category 2 hospitals, aOR, 2.12; 95% CI, 1.34-3.35) and postpartum hemorrhage in category 2 and 3 hospitals (category 2 hospitals: aOR, 2.49; 95% CI, 1.57-3.94; category 3 hospitals: aOR, 1.83; 95% CI, 1.24-2.70). We observed that high LAC frequency was associated with more adverse outcomes (e.g., infection, severe perineal lacerations, decreased Apgar scores) in category 2 than in category 1 and 3 hospitals.

conclusionsWe did not find that high LAC frequency was associated with more VBAC, nor with many perinatal complications in category 1 and 3 hospitals. The associations between high LAC frequency and both infection and postpartum hemorrhage are concerning and require further investigation. There may be a sensitive balance between increasing LAC access and determining appropriate LAC candidate selection.

Indexed as

Vaginal Birth after CesareanCaliforniaCesarean SectionFemaleHospitalsHumansPregnancyRetrospective Studies

Identifiers

PMID32859469
PMCPMC7704773
OpenAlexW3080251754

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

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.