Document Detail


Asthma and swimming: a meta-analysis.
MedLine Citation:
PMID:  18951254     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this meta-analysis, studies on swimming and asthma were divided into four groups: Group I compared frequency of asthma among elite swimmers to that of other athletes; Group II examined the association between asthma and swimming during childhood; Group III evaluated effects of swimming programs on asthma severity and pulmonary function; and Group IV compared immediate respiratory effects of swimming to those of other types of exercise. The summary results were expressed as meta-odds ratios (ORs) for binary endpoints such as presence of asthma, and meta-differences for continuous endpoints such as changes in post-exercise pulmonary function tests (PFTs). All summary measures of effect were calculated using random effects models accompanied by a corresponding 95% confidence interval (CI) and a test for heterogeneity. In the analysis comparing frequency of asthma among elite swimmers to that among other athletes (Group I), meta-ORs ranged from 2.3 to 2.6 with all 95% CIs excluding 1.0. The corresponding meta-ORs reflecting the association between asthma and swimming pool use during childhood (Group II) were in the 0.63-0.82 range and were not statistically significant. In comparison to swimming, running and/or cycling was associated with a statistically significant four-to six-fold increase in exercise induced bronchospasm. Although asthma is more commonly found among elite swimmers than among other high-level athletes, it is premature to draw conclusions about the causal link between swimming and asthma because most studies available to date used cross-sectional design, because the association is not confirmed among non-competitive swimmers, and because asthmatics may be more likely to select swimming as the activity of choice because of their condition.
Authors:
Michael Goodman; Sean Hays
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Publication Detail:
Type:  Journal Article; Meta-Analysis; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of asthma : official journal of the Association for the Care of Asthma     Volume:  45     ISSN:  1532-4303     ISO Abbreviation:  J Asthma     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-10-27     Completed Date:  2008-11-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8106454     Medline TA:  J Asthma     Country:  United States    
Other Details:
Languages:  eng     Pagination:  639-47     Citation Subset:  IM    
Affiliation:
Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA. mgoodm2@sph.emory.edu
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MeSH Terms
Descriptor/Qualifier:
Asthma / epidemiology*,  etiology,  physiopathology
Humans
Odds Ratio
Respiratory Function Tests
Swimming / statistics & numerical data*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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