期刊
PHARMACOEPIDEMIOLOGY AND DRUG SAFETY
卷 24, 期 8, 页码 793-802出版社
WILEY
DOI: 10.1002/pds.3799
关键词
benzodiazepines; zopiclone; asthma exacerbation; mortality; pharmacoepidemiology
资金
- University of Nottingham
PurposeTo investigate the association between the gamma-aminobutyric acid (GABA)ergic drugs, benzodiazepines or zopiclone and the occurrence of asthma exacerbations and subsequent mortality in a cohort of asthma patients. MethodsThe number of patients that were included were 105747 for those without asthma exacerbation and 25895 for those with exacerbated asthma. A nested case-control study probed the association between benzodiazepines or zopiclone and occurrence of asthma exacerbation (primary outcome) using conditional logistic regression. Cox regression was used to determine the association between the drugs and all-cause mortality in patients with recorded asthma exacerbation. Adjusted matched odds ratios (adj mOR) and adjusted hazard ratios (adj HR) with 95% confidence intervals (CI) are presented. ResultsCurrent benzodiazepine use was associated with increased occurrence of asthma exacerbation (adj mOR 1.49; 95%CI [1.15, 1.93]; P=0.001) as was current zopiclone use (adj mOR 1.59; 95%CI [1.37, 1.85]; P<0.001). In patients with an asthma exacerbation, current benzodiazepine use was associated with increased all-cause mortality during a median follow-up of 2years (adj HR 2.78; 95%CI [1.26, 6.12]; P=0.011), and the association between zopiclone use and all-cause mortality showed borderline statistical significance (adj HR 1.58; 95%CI [0.98, 2.54]; P=0.058). ConclusionBenzodiazepines and zopiclone may increase the likelihood of asthma exacerbation, and benzodiazepines may also increase the likelihood of mortality following exacerbation. These data suggest that caution should be exercised when prescribing benzodiazepines to patients with asthma. Copyright (c) 2015 John Wiley & Sons, Ltd.
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