Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/109224
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Type: Journal article
Title: The association between childhood asthma and adult chronic obstructive pulmonary disease
Author: Tai, A.
Tran, H.
Roberts, M.
Clarke, N.
Wilson, J.
Robertson, C.
Citation: Thorax, 2014; 69(9):805-810
Publisher: BMJ Publishing Group
Issue Date: 2014
ISSN: 0040-6376
1468-3296
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Responsibility: 
Andrew Tai, Haily Tran, Mary Roberts, Nadeene Clarke, John Wilson, Colin F Robertson
Abstract: INTRODUCTION: There is epidemiological evidence to suggest that events in childhood influence lung growth and constitute a significant risk for adult COPD. The aim of the study is to evaluate for an association between childhood asthma and adult COPD. METHODS: This longitudinal, prospective study of 6-7-year-old children with asthma has been regularly reviewed every 7 years to the current analysis at 50 years of age. Participants completed respiratory questionnaires and lung function spirometry with postbronchodilator response. At the age of 50, subjects were classified to the following subgroups: non-asthmatics, asthma remission, current asthma and COPD which was defined by FEV1 to FVC ratio postbronchodilator of less than 0.7. RESULTS: Of the remaining survivors, 346 participated in the current study (participation rate of 76%) of whom 197 completed both questionnaire and lung function testing. As compared with children without symptoms of wheeze to the age of 7, (non-asthmatics) children with severe asthma had an adjusted 32 times higher risk for developing COPD (95% CI 3.4 to 269). In this cohort, 43% of the COPD group had never smoked. There was no evidence of a difference in the rate of decline in FEV1 (mL/year, 95th CI) between the COPD group (17, 10 to 23) and the other groups: non-asthmatics (16, 12 to 21), asthma remission (20, 16 to 24) and current asthma (19, 13 to 25). CONCLUSIONS: Children with severe asthma are at increased risk of developing COPD.
Keywords: Asthma; Pulmonary Disease, Chronic Obstructive
Rights: Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions
RMID: 0030075468
DOI: 10.1136/thoraxjnl-2013-204815
Grant ID: http://purl.org/au-research/grants/nhmrc/436959
Appears in Collections:Medicine publications

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