Evidence map›Paper›PMID 26910608›Full record

ArticleMaternal and child health journal2016

Physical Activity During Pregnancy and Subsequent Risk of Preeclampsia and Gestational Hypertension: A Case Control Study.

Cassandra N Spracklen, Kelli K Ryckman, Elizabeth W Triche, Audrey F Saftlas

Open access · greenAbstract read
In one paragraph

Article in Maternal and child health journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 4 pooled it
5.4field-weighted citation impact, top 5% 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

19 citing papers in PubMed, 4 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. Sedentary behavior during pregnancy and risk of pre-eclampsia and/or gestational hypertension: A systematic review.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Occupational Risk Factors and Hypertensive Disorders in Pregnancy: A Systematic Review.International journal of environmental research and public health · 2021
    Pooled it
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Observational
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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 3 institutions in 1 country.

Cassandra N SpracklenDepartment of Genetics, University of North Carolina-Chapel Hill, 5100 Genetic Medicine Building, CB# 7264, 120 Mason Farm Road, Chapel Hill, NC, 27599, USA.
Kelli K RyckmanDepartment of Epidemiology, University of Iowa College of Public Health, 145 South Riverside Drive, S414 CPHB, Iowa City, IA, 52242, USA.
Elizabeth W TricheDepartment of Epidemiology, Brown University, Providence, RI, USA.
Audrey F SaftlasDepartment of Epidemiology, University of Iowa College of Public Health, 145 South Riverside Drive, S414 CPHB, Iowa City, IA, 52242, USA. audrey-saftlas@uiowa.edu.
University of Iowa · USBrown University · USUniversity of North Carolina at Chapel Hill · US

Funding

DOMESTIC ABUSE IN PREGNANCY AND ADVERSE BIRTH OUTCOMESR01HD039753 · NICHD · UNIVERSITY OF IOWA · PI SAFTLAS, AUDREY FRIEDA · 2001 to 2004
$1.7M
NICHD NIH HHS R01 HD039753
6 · The paper itself

Abstract

objectivePhysical activity (PA) is hypothesized to reduce the risk of preeclampsia, but few epidemiologic studies have simultaneously evaluated leisure time PA (LTPA), sedentary activity, occupational activity, and non-occupational, non-leisure time PA. Thus, we assessed the independent and combined effects of these different types of PA during pregnancy on preeclampsia and gestational hypertension risk.

methodsPreeclamptic (n = 258), gestational hypertensive (n = 233), and normotensive (n = 182) women identified from Iowa live birth records (2002-2005) were participants in Study of Pregnancy Hypertension in Iowa. Disease status was verified by medical chart review. All PA exposures were self-reported. Multinomial logistic regression was used to test for associations between various PA types and risk for preeclampsia or gestational hypertension.

resultsAfter adjusting for prepregnancy BMI, increasing levels of LTPA were associated with a reduced risk of preeclampsia (trend, p = 0.02). Additionally, increasing amount of time spent active each day was associated with decreasing risks for preeclampsia (adjusted, trend; p = 0.03). Increasing amount of time spent sitting per day was associated with an increasing risk of preeclampsia (adjusted, trend; p = 0.10). Women whose activity averaged >8.25 h per day were at a significantly reduced risk of preeclampsia relative to women active <4.2 h per day (adjusted OR 0.58, 95 % CI 0.36, 0.95). Most analyses evaluating the risk of gestational hypertension yielded null results or results that trended in the direction opposite of the preeclampsia results.

conclusionConsistent with previous studies, these data suggest increasing PA during pregnancy may reduce preeclampsia risk while increasing levels of sedentary activity may increase disease risk.

Indexed as

EmploymentExerciseLeisure ActivitiesAdolescentAdultCase-Control StudiesEpidemiologic StudiesFemaleHumansHypertension, Pregnancy-InducedIowaLogistic ModelsPre-EclampsiaPregnancyRisk FactorsYoung AdultGestational hypertensionOccupational activityPhysical activityPreeclampsiaPregnancy-induced hypertension

Identifiers

PMID26910608
PMCPMC5538351
OpenAlexW2276050249

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.