Abstract
Background
Smoking habits of asthmatics are similar to those of the general population. However, little attention has been paid to the associations between smoking and asthma-related outcomes.
Objective
To evaluate relationships between cigarette smoking, asthma symptoms, and asthma-related resource utilization in subjects with persistent asthma.
Method
A stratified, random sample of adults from France, Germany, and the UK with persistent asthma were surveyed in 2001 through 2004. Statistical analyses compared asthma symptoms and healthcare resource utilization for cigarette smokers compared with those for non-smokers.
Results
Analyses included 1109 subjects with persistent asthma symptoms in 2001–2003 and 852 subjects with persistent asthma symptoms in 2004. Using multivariate analysis of data from eligible subjects in 2004 that did not have concomitant chronic obstructive pulmonary disease and adjusting for subjects’ baseline and demographic characteristics, cigarette smokers were more likely to experience nighttime symptoms (OR 1.46, 95% CI 1.07, 1.97 P = 0.015) and were more likely to use healthcare resources than were non-smokers (P ≤ 0.004). Findings were similar in a secondary analysis of subjects ≤55 years of age.
Conclusions
Cigarette smoking appears to be associated with more asthma symptoms and more ED visits and hospitalizations in adults with persistent asthma.
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Abbreviations
- AIDS:
-
Autoimmune deficiency syndrome
- BMI:
-
Body mass index
- CI:
-
Confidence interval
- COPD:
-
Chronic obstructive pulmonary disorder
- ED:
-
Emergency department
- GERD:
-
Gastroenteric reflux disease
- GP:
-
General practitioner
- HIV:
-
Human immunodeficiency virus
- ICS:
-
Inhaled corticosteroid
- OR:
-
Odds ratio
- OTC:
-
Over-the-counter
- QoL:
-
Quality of life
- SABA:
-
Short-acting β-agonist
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Acknowledgement
Authors Swern, Dong, Sazonov Kocevar, Newcomb, and Taylor are all paid employees of Merck & Co., Inc. Author Shavit was supported by a post-doctoral research fellowship from Merck & Co., Inc. This study was funded by a research grant from Merck Research Laboratories, Merck & Co., Inc., Rahway, NJ USA.
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Shavit, O., Swern, A., Dong, Q. et al. Impact of smoking on asthma symptoms, healthcare resource use, and quality of life outcomes in adults with persistent asthma. Qual Life Res 16, 1555–1565 (2007). https://doi.org/10.1007/s11136-007-9267-4
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DOI: https://doi.org/10.1007/s11136-007-9267-4