Long-acting beta-agonists reduce mortality of patients with severe and very severe chronic obstructive pulmonary disease: a propensity score matching study View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2013-06-03

AUTHORS

Nobuyuki Horita, Naoki Miyazawa, Satoshi Morita, Ryota Kojima, Naoko Kimura, Takeshi Kaneko, Yoshiaki Ishigatsubo

ABSTRACT

BACKGROUND: Long-acting beta-agonists were one of the first-choice bronchodilator agents for stable chronic obstructive pulmonary disease. But the impact of long-acting beta-agonists on mortality was not well investigated. METHODS: National Emphysema Treatment Trial provided the data. Severe and very severe stable chronic obstructive pulmonary disease patients who were eligible for volume reduction surgery were recruited at 17 clinical centers in United States during 1988-2002. We used the 6-10 year follow-up data of patients randomized to non-surgery treatment. Hazard ratios for death by long-acting beta-agonists were estimated by three models using Cox proportional hazard analysis and propensity score matching were measured. RESULTS: The pre-matching cohort was comprised of 591 patients (50.6% were administered long-acting beta-agonists. Age: 66.6 ± 5.3 year old. Female: 35.4%. Forced expiratory volume in one second (%predicted): 26.7 ± 7.1%. Mortality during follow-up: 70.2%). Hazard ratio using a multivariate Cox model in the pre-matching cohort was 0.77 (P = 0.010). Propensity score matching was conducted (C-statics: 0.62. No parameter differed between cohorts). The propensity-matched cohort was comprised of 492 patients (50.0% were administered long-acting beta-agonists. Age: 66.8 ± 5.1 year old. Female: 34.8%. Forced expiratory volume in one second (%predicted) 26.5 ± 6.8%. Mortality during follow-up: 69.1%). Hazard ratio using a univariate Cox model in the propensity-matched cohort was 0.77 (P = 0.017). Hazard ratio using a multivariate Cox model in the propensity-matched cohort was 0.76 (P = 0.011). CONCLUSIONS: Long-acting beta-agonists reduce mortality of severe and very severe chronic obstructive pulmonary disease patients. More... »

PAGES

62-62

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/1465-9921-14-62

DOI

http://dx.doi.org/10.1186/1465-9921-14-62

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https://app.dimensions.ai/details/publication/pub.1037113314

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/23725215


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