Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2 Pt 1
pubmed:dateCreated
2000-6-27
pubmed:abstractText
Previous studies of lung function in relation to smoking cessation have not adequately quantified the long-term benefit of smoking cessation, nor established the predictive value of characteristics such as airway hyperresponsiveness. In a prospective randomized clinical trial at 10 North American medical centers, we studied 3, 926 smokers with mild-to-moderate airway obstruction (3,818 with analyzable results; mean age at entry, 48.5 yr; 36% women) randomized to one of two smoking cessation groups or to a nonintervention group. We measured lung function annually for 5 yr. Participants who stopped smoking experienced an improvement in FEV(1) in the year after quitting (an average of 47 ml or 2%). The subsequent rate of decline in FEV(1) among sustained quitters was half the rate among continuing smokers, 31 +/- 48 versus 62 +/- 55 ml (mean +/- SD), comparable to that of never-smokers. Predictors of change in lung function included responsiveness to beta-agonist, baseline FEV(1), methacholine reactivity, age, sex, race, and baseline smoking rate. Respiratory symptoms were not predictive of changes in lung function. Smokers with airflow obstruction benefit from quitting despite previous heavy smoking, advanced age, poor baseline lung function, or airway hyperresponsiveness.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1073-449X
pubmed:author
pubmed:issnType
Print
pubmed:volume
161
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
381-90
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:10673175-Adult, pubmed-meshheading:10673175-Airway Resistance, pubmed-meshheading:10673175-Bronchial Provocation Tests, pubmed-meshheading:10673175-Bronchodilator Agents, pubmed-meshheading:10673175-Combined Modality Therapy, pubmed-meshheading:10673175-Female, pubmed-meshheading:10673175-Follow-Up Studies, pubmed-meshheading:10673175-Forced Expiratory Volume, pubmed-meshheading:10673175-Humans, pubmed-meshheading:10673175-Ipratropium, pubmed-meshheading:10673175-Lung Diseases, Obstructive, pubmed-meshheading:10673175-Lung Volume Measurements, pubmed-meshheading:10673175-Male, pubmed-meshheading:10673175-Middle Aged, pubmed-meshheading:10673175-Smoking, pubmed-meshheading:10673175-Smoking Cessation, pubmed-meshheading:10673175-Treatment Outcome, pubmed-meshheading:10673175-Vital Capacity
pubmed:year
2000
pubmed:articleTitle
Smoking cessation and lung function in mild-to-moderate chronic obstructive pulmonary disease. The Lung Health Study.
pubmed:affiliation
Division of Pulmonary and Critical Care Medicine, Mayo Foundation, Rochester, Minnesota 55905, USA. pscanlon@mayo.edu
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, U.S. Gov't, P.H.S., Randomized Controlled Trial