Evidence map›Paper›PMID 22727347›Full record

ArticleAmerican journal of obstetrics and gynecology2012

The association between hospital obstetrical volume and maternal postpartum complications.

Kathy L Kyser, Xin Lu, Donna A Santillan, Mark K Santillan, Stephen K Hunter, Alison G Cahill, Peter Cram

Open access · bronzeAbstract read
In one paragraph

Article in American journal of obstetrics and gynecology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
6.8field-weighted citation impact, top 3% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 91 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. 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
  10. Article
  11. Risk factors for postpartum readmission among women after having a stillbirth.American journal of obstetrics & gynecology MFM · 2021
    Article
  12. Article
  13. Article
  14. Obstetric Patients with Repetitious Hospital Location Transfers Have Prolonged Stays.Proceedings. IEEE International Conference on Healthcare Informatics · 2019
    Article
  15. Article
  16. Observational
  17. Article
  18. Article
  19. Article
  20. Severe maternal morbidity and related hospital quality measures in Maryland.Journal of perinatology : official journal of the California Perinatal Association · 2018
    Observational
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Kathy L KyserDivision of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Iowa Hospital and Clinics, Iowa City, IA 52242, USA. kathy-kyser@uiowa.edu
Xin Lu
Donna A Santillan
Mark K Santillan
Stephen K Hunter
Alison G Cahill
Peter Cram
University of Iowa Hospitals and Clinics · USWashington University in St. Louis · US

Funding

Washington University Institute of Clinical and Translational Sciences (UL1)UL1RR024992 · NCRR · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2007 to 2011
$45.4M
REPRODUCTIVE SCIENTIST TRAINING PROGRAMK12HD000849 · NICHD · WASHINGTON UNIVERSITY · PI Danny J Schust · 1988 to 2026
$33.2M
University of Iowa Clinical and Translational Science Program (KL2)KL2RR024980 · NCRR · UNIVERSITY OF IOWA · PI ROSENTHAL, GARY E · 2007 to 2011
$4.6M
Cardiac care in specialty and general hospitalsR01HL085347 · NHLBI · UNIVERSITY OF IOWA · PI CRAM, PETER M · 2007 to 2010
$2.7M
Engineering a Supplemental Phenylalanine Metabolic Pathway to Prevent mPKUR01GM090148 · NIGMS · UNIVERSITY OF IOWA · PI HUNTER, STEPHEN K. · 2009 to 2011
$529k
NCRR NIH HHS KL2 RR024980NCRR NIH HHS KL2RR024980-2NCRR NIH HHS RR01997201NCRR NIH HHS UL1 RR024992NHLBI NIH HHS R01 HL085347NHLBI NIH HHS R01 HL085347-01A1NICHD NIH HHS K12 HD000849NIGMS NIH HHS R01 GM090148NIGMS NIH HHS R01GM090148
6 · The paper itself

Abstract

objectiveThe purpose of this study was to examine the relationship between delivery volume and maternal complications. STUDY

designWe used administrative data to identify women who had been admitted for childbirth in 2006. Hospitals were stratified into deciles that were based on delivery volume. We compared composite complication rates across deciles.

resultsWe evaluated 1,683,754 childbirths in 1045 hospitals. Decile 1 and 2 hospitals had significantly higher rates of composite complications than decile 10 (11.8% and 10.1% vs 8.5%, respectively; P < .0001). Decile 9 and 10 hospitals had modestly higher composite complications as compared with decile 6 (8.8% and 8.5% vs 7.6%, respectively; P < .0001). Sixty percent of decile 1 and 2 hospitals were located within 25 miles of the nearest greater volume hospital.

conclusionWomen who deliver at very low-volume hospitals have higher complication rates, as do women who deliver at exceedingly high-volume hospitals. Most women who deliver in extremely low-volume hospitals have a higher volume hospital located within 25 miles.

Indexed as

AdultCesarean SectionFemaleHealth Care SurveysHospital MortalityHumansLogistic ModelsMaternal MortalityObstetric Labor ComplicationsObstetrics and Gynecology Department, HospitalPatient SafetyPregnancyQuality Indicators, Health CareUnited States

Identifiers

PMID22727347
PMCPMC4362705
OpenAlexW2061164006

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.