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- W1899686636 abstract "Aim: To find out what the prevalence of COPD amongst smokers with asthma is. Material: The study included 154 asthmatic patients - 46 (29.9%) men and 108 (70.1%) women, aged between 40 and 69 years, all of them current or ex-smokers. The patients did spirometry and filled in a specially designed respiratory questionnaire. Results: Spirometric criteria for COPD were found in 29.9% of all patients, in 24.1% of female and 43.5% of male patients (p=0.02). The prevalence of COPD was 23.2% amongst patients aged between 40 and 50 and 32.2% in patients above 50 (p=0.1). COPD was found in 6.1% of patients with less than 20 pack-years and in 56.2% in patients with ≥ 20 pack-years (p=0.0001). More current smokers had COPD than ex-smokers - 38.2% vs. 20.5% respectively (p=0.02) The risk for COPD in smokers with asthma was OR = 15.7 (95% CI, 3.8 - 64.5). Conclusions: One third of the current/former asthmatic patients above the age of 40 met the functional criteria for COPD. The prevalence of COPD was significantly higher in males and in older patients and depends on the pack-years." @default.
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- W1899686636 date "2011-09-01" @default.
- W1899686636 modified "2023-09-26" @default.
- W1899686636 title "Chronic obstructive pulmonary disease in smokers with asthma" @default.
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