Evidence map›Paper›PMID 29742665›Full record

Observational studyObstetrics and gynecology2018

Variation in the Nulliparous, Term, Singleton, Vertex Cesarean Delivery Rate.

Daniel N Pasko, Paula McGee, William A Grobman, Jennifer L Bailit, Uma M Reddy, Ronald J Wapner, Michael W Varner, John M Thorp, Kenneth J Leveno, Steve N Caritis and 7 more

Open access · greenAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Obstetrics and gynecology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

9 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
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  5. Review
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  8. 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

17 authors at 16 institutions in 2 countries.

Daniel N PaskoDepartments of Obstetrics and Gynecology, University of Alabama at Birmingham, Birmingham, Alabama; Northwestern University, Chicago, Illinois; MetroHealth Medical Center-Case Western Reserve University, Cleveland, Ohio; Columbia University, New York, New York; the University of Utah Health Sciences Center, Salt Lake City, Utah; the University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; the University of Texas Southwestern Medical Center, Dallas, Texas; the University of Pittsburgh, Pittsburgh, Pennsylvania; The Ohio State University, Columbus, Ohio; the University of Texas Medical Branch, Galveston, Texas; Wayne State University, Detroit, Michigan; Brown University, Providence, Rhode Island; the University of Texas Health Science Center at Houston, McGovern Medical School-Children's Memorial Hermann Hospital, Houston, Texas; Oregon Health & Science University, Portland, Oregon; the George Washington University Biostatistics Center, Washington, DC; and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland.
Paula McGee
William A Grobman
Jennifer L Bailit
Uma M Reddy
Ronald J Wapner
Michael W Varner
John M Thorp
Kenneth J Leveno
Steve N Caritis
Mona Prasad
George Saade
Yoram Sorokin
Dwight J Rouse
Sean C Blackwell
Jorge E Tolosa
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Maternal-Fetal Medicine Units (MFMU) Network
Brown University · USColumbia University · USEunice Kennedy Shriver National Institute of Child Health and Human Development · USGeorge Washington University · USMemorial Hermann · USMetroHealth Medical Center · USNorthwestern University · USOregon Health & Science University · USThe Ohio State University · USThe University of Texas Medical Branch at Galveston · USThe University of Texas Southwestern Medical Center · USUniversity of Alabama at Birmingham · USUniversity of North Carolina at Chapel Hill · USUniversity of Pittsburgh · USUniversity of Utah · USWayne State University · US

Funding

Data Coord Ctr-NICHD Cooperative Multicenter Maternal Medicine Units Research NetU10HD036801 · NICHD · GEORGE WASHINGTON UNIVERSITY · PI CLIFTON, REBECCA GERSNOVIEZ · 2009 to 2021
$174.2M
CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR024989 · NCRR · CASE WESTERN RESERVE UNIVERSITY · PI DAVIS, PAMELA B · 2007 to 2011
$53.7M
SARS-CoV-2 Vaccine Pregnancy RegistryU24HD036801 · NICHD · GEORGE WASHINGTON UNIVERSITY · PI Rebecca Gersnoviez Clifton · 2021 to 2026
$39.2M
MATERNAL FETAL RESEARCH NETWORK: DATA COORDINATING CTRU01HD036801 · NICHD · GEORGE WASHINGTON UNIVERSITY · PI THOM, ELIZABETH ANN · 1998 to 2008
$27.0M
UNIVERSITY OF UTAH CENTER FOR CLINICAL AND TRANSLATIONAL SCIENCE-UL1: BPCAUL1RR025764 · NCRR · UNIVERSITY OF UTAH · PI MCCLAIN, DONALD A. · 2008 to 2011
$19.4M
NICHD Maternal Fetal Medicine Units NetworkU10HD034116 · NICHD · UT SOUTHWESTERN MEDICAL CENTER · PI CASEY, BRIAN M · 1996 to 2015
$19.3M
NICHD Maternal Fetal Medicine Units NetworkU10HD034208 · NICHD · UNIVERSITY OF UTAH · PI VARNER, MICHAEL W. · 1996 to 2015
$16.6M
NICHD Maternal Fetal Medicine Units NetworkU10HD027869 · NICHD · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI TITA, ALAN THEVENET N. · 1991 to 2015
$12.8M
NICHD Maternal Fetal Medicine Units NetworkU10HD040485 · NICHD · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WAPNER, RONALD · 2001 to 2015
$12.5M
NICHD Maternal Fetal Medicine Units NetworkU10HD040560 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI THORP, JOHN M · 2001 to 2015
$10.3M
NICHD Maternal Fetal Medicine Units NetworkU10HD040512 · NICHD · NORTHWESTERN UNIVERSITY AT CHICAGO · PI GROBMAN, WILLIAM ADAM · 2001 to 2015
$8.7M
NICHD Maternal Fetal Medicine Units NetworkU10HD027917 · NICHD · WAYNE STATE UNIVERSITY · PI GONIK, BERNARD · 1991 to 2015
$8.2M
NCRR NIH HHS UL1 RR024989NCRR NIH HHS UL1 RR025764NICHD NIH HHS U01 HD036801NICHD NIH HHS U10 HD021410NICHD NIH HHS U10 HD027869NICHD NIH HHS U10 HD027915NICHD NIH HHS U10 HD027917NICHD NIH HHS U10 HD034116NICHD NIH HHS U10 HD034208NICHD NIH HHS U10 HD036801NICHD NIH HHS U10 HD040485NICHD NIH HHS U10 HD040500NICHD NIH HHS U10 HD040512NICHD NIH HHS U10 HD040544NICHD NIH HHS U10 HD040545NICHD NIH HHS U10 HD040560NICHD NIH HHS U10 HD053097NICHD NIH HHS U10 HD053118NICHD NIH HHS U24 HD036801NICHD NIH HHS UG1 HD027869NICHD NIH HHS UG1 HD027915NICHD NIH HHS UG1 HD034116NICHD NIH HHS UG1 HD034208NICHD NIH HHS UG1 HD040485NICHD NIH HHS UG1 HD040500NICHD NIH HHS UG1 HD040512NICHD NIH HHS UG1 HD040544NICHD NIH HHS UG1 HD040545NICHD NIH HHS UG1 HD040560NICHD NIH HHS UG1 HD053097
6 · The paper itself

Abstract

objectiveTo estimate the contributions of patient and health care provider-hospital characteristics to the variation in the frequency of nulliparous, term, singleton, vertex cesarean delivery in a multi-institutional U.S. cohort.

methodsWe performed a secondary analysis of the multicenter Assessment of Perinatal Excellence cohort of 115,502 mother and neonatal pairs who were delivered at 25 hospitals between March 2008 and February 2011. Women met inclusion criteria if they were nulliparous and delivered a singleton in vertex presentation at term. Hospital ranks for nulliparous, term, singleton, vertex cesarean delivery frequency were determined after risk adjustment. The fraction of variation in nulliparous, term, singleton, vertex cesarean delivery frequency attributable to patient and health care provider-hospital characteristics was assessed using hierarchical logistic regression.

resultsOf the 115,502 deliveries in the initial cohort, 38,275 nulliparous, term, singleton, vertex deliveries met inclusion criteria. The median hospital nulliparous, term, singleton, vertex cesarean delivery frequency was 25.3% with a range from 15.0% to 35.2%. The majority of hospitals (16/25) changed rank quintiles after risk adjustment; overall the changes in rank were not statistically significant (P=.53). Patient characteristics accounted for 24% of the nulliparous, term, singleton, vertex cesarean delivery variation. The analyzed health care provider-hospital characteristics were not significantly associated with cesarean delivery frequency.

conclusionAlthough patient characteristics accounted for some of the variation in nulliparous, term, singleton, vertex cesarean delivery frequency and accounting for case mix had implications for hospital cesarean delivery rankings, the majority of the variation was not explained by the characteristics evaluated. These findings emphasize the importance of continued efforts to understand aspects of obstetric care, including case mix, that contribute to cesarean delivery variation.

Indexed as

AdultCesarean SectionDelivery, ObstetricFemaleHospitalsHumansLogistic ModelsParityPregnancyTerm BirthUnited States

Identifiers

PMID29742665
PMCPMC6033063
OpenAlexW2802438144

What OpenQuestion holds

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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.