Evidence map›Paper›PMID 20929415›Full record

SynthesisJournal of women's health (2002)2010

Association of physical activity level and stroke outcomes in men and women: a meta-analysis.

Lien Diep, John Kwagyan, Joseph Kurantsin-Mills, Roger Weir, Annapurni Jayam-Trouth

Open access · greenAbstract readComparative StudyMeta-AnalysisReview
In one paragraph

Synthesis in Journal of women's health (2002), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 5 pooled it
2.7field-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

42 citing papers in PubMed, 5 syntheses or guidelines pooled it, 118 citations in OpenAlex.

  1. Pooled it
  2. Guideline
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  4. Pooled it
  5. Physical activity and risk of cardiovascular disease--a meta-analysis of prospective cohort studies.International journal of environmental research and public health · 2012
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  20. Regular physical activity postpones age of occurrence of first-ever stroke and improves long-term outcomes.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    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

5 authors at 2 institutions in 1 country.

Lien DiepGraduate Training Program in Clinical Investigation, Johns Hopkins University Medical Institutions, Baltimore, Maryland, USA. ldiep@howard.edu
John Kwagyan
Joseph Kurantsin-Mills
Roger Weir
Annapurni Jayam-Trouth
Howard University · USWashington University Medical Center · US

Funding

UVDM01RR010284 · NCRR · HOWARD UNIVERSITY · PI TAYLOR, WILLIAM ROBERT · 1996 to 2010
$17.4M
Multidisciplinary Clinical Research Career Development (RMI)K12RR023266 · NCRR · JOHNS HOPKINS UNIVERSITY · PI POWE, NEIL R. · 2005 to 2007
$6.0M
NCRR NIH HHS K12RR023266NCRR NIH HHS MO1 RR 10284
6 · The paper itself

Abstract

objectiveThe protective effect of physical activity (PA) on risk of stroke remains controversial as a result of lack of insight into the sources of heterogeneity between studies. We performed a comprehensive meta-analysis of studies to (1) quantify the association between PA level and risk of stroke outcomes and (2) test the hypothesis that the association of PA level with stroke outcomes will be similar between men and women. The outcome measures are stroke incidence, stroke mortality, or both.

methodsCohort studies were identified by searching MEDLINE and EMBASE (from 1986 to 2005) and meta-analysis conducted according to meta-analysis of Observational Studies in Epidemiology (MOOSE) group recommendations. Data were reported as pooled relative risk (RR) and 95% confidence intervals (CI) using random-effects models to assess the association of stroke outcomes with PA level. Heterogeneity was investigated, and sensitivity analysis was performed. Stratified analysis by gender was performed.

resultsOf 992 articles, 13 satisfied all eligibility criteria and were studied. Compared with low PA, moderate PA caused an 11% reduction in risk of stroke outcome (RR = 0.89, 95% CI 0.86-0.93, p < 0.01) and high PA a 19% reduction (RR = 0.81, CI 0.77-0.84, p < 0.01). Among the men, results showed a 12% reduction in risk associated with moderate PA (RR = 0.88, CI 0.82-0.94, p < 0.01) and 19% reduction for high PA (RR = 0.81, CI 0.75-0.87, p < 0.01). Among the women, results showed a 24% reduction in risk for high PA (RR = 0.76, CI 0.64-.89, p < 0.01). There was, however, no significant risk reduction associated with a moderate PA level in women.

conclusionsIncreased PA level appears beneficial in reduction of risk of stroke and related outcomes. However, higher levels of PA may be required in women to achieve as significant a risk reduction as in men. An exercise regimen tailored to women to improve related physiological mechanisms will likely be beneficial.

Indexed as

AgedCohort StudiesConfounding Factors, EpidemiologicExerciseFemaleHumansMaleMiddle AgedOutcome Assessment, Health CareRiskSex FactorsStrokeTreatment OutcomeWomen's Health

Identifiers

PMID20929415
PMCPMC2956381
OpenAlexW2059763322

What OpenQuestion holds

Textmetadata
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.