Evidence map›Paper›PMID 19747266›Full record

ArticleBirth (Berkeley, Calif.)2009

Exercise during pregnancy and cesarean delivery: North Carolina PRAMS, 2004-2005.

Marit L Bovbjerg, Anna Maria Siega-Riz

Abstract read
In one paragraph

Article in Birth (Berkeley, Calif.), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 10% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Influence of a Water-Based Exercise Program in the Rate of Spontaneous Birth: A Randomized Clinical Trial.International journal of environmental research and public health · 2020
    Trial
  3. Exercise in Pregnancy: The Impact of an Intervention Program in the Duration of Labor and Mode of Delivery.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2019
    Article
  4. Article
  5. Article
  6. Article
  7. Caesarean delivery in south-western Iran: trends and determinants in a community-based survey.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2013
    Article
  8. Review
  9. Article
  10. Exercise during pregnancy and risk of late preterm birth, cesarean delivery, and hospitalizations.Women's health issues : official publication of the Jacobs Institute of Women's Health
    Article
  11. 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

2 authors at 1 institution in 1 country.

Marit L BovbjergDepartment of Epidemiology, University of North Carolina at Chapel Hill Gillings School of Global Public Health, Chapel Hill, North Carolina 27599, USA.
Anna Maria Siega-Riz
University of North Carolina at Chapel Hill · US

Funding

Carolina Population CenterR24HD050924 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI MORGAN, SAMUEL PHILIP · 2005 to 2014
$10.0M
Training Program in Reproductive, Perinatal, and Pediatric EpidemiologyT32HD052468 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Julie L Daniels · 2008 to 2026
$3.8M
NICHD NIH HHS R24 HD050924NICHD NIH HHS T32 HD052468
6 · The paper itself

Abstract

backgroundThe current rate of cesarean delivery in the United States is 31 percent. Previous studies have suggested that exercise during pregnancy may be associated with a lower risk of cesarean delivery, but sample sizes were small and methods often inadequate. This study examined whether or not an association exists between prenatal exercise and delivery mode using data from the 2004 and 2005 North Carolina Pregnancy Risk Assessment Monitoring System (PRAMS) survey.

methodsPRAMS postpartum questionnaire responses about frequency of exercise during the last 3 months of pregnancy for 1,955 women without a prior cesarean delivery were linked to birth certificates.

resultsAmong 1,342 women delivering at term, exercise was not associated with delivery mode in this data set: compared with women exercising less than once a week, neither women exercising one to four times per week nor those exercising five times or more per week had an altered risk of cesarean (risk ratio [RR] [95% confidence limit] [CL] 0.89 [0.69-1.15], 1.04 [0.66-1.64], respectively, adjusted for parity, gestational age, hypertension). Among 613 women delivering preterm, the results were also not statistically significant, but a compelling trend toward a protective effect could be seen (RR [95% CL] 0.65 [0.38-1.13], 0.62 [0.29-1.33]).

conclusionsMaternal self-reported frequency of exercise during pregnancy was not associated with a reduced risk of cesarean delivery. Larger studies with better exposure ascertainment may provide a more definitive answer.

Indexed as

ExerciseAdultCesarean SectionChi-Square DistributionFemaleHealth SurveysHumansLeisure ActivitiesMultivariate AnalysisNorth CarolinaPregnancyPrenatal CareRegression AnalysisRisk AssessmentRisk FactorsRisk Reduction Behavior

Identifiers

PMID19747266
PMCPMC3478876
OpenAlexW2060780753

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.