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KMID : 1141720170050020010
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폐쇄성폐질환
2017 Volume.5 No. 2 p.10 ~ p.10
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Koo Hyun-Kyung
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Abstract
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Chronic cough is common symptom for hospital visits. The prevalence have been reported to be differ among countries, and studies on Korean population have reported less prevalence. This review is aimed to review prevalence in terms of each etiology based on reported data, and national survey results. According to the Korean National Health and Nutrition Examination Survey report, overall prevalence of chronic cough in Korean adults was 2.5% and among them non-smoker without chest X-ray abnormalities was 36.3%. Prevalence for each etiology varies; current smoker (47.7%), upper airway cough syndrome (UACS) (46.8%), chronic obstructive pulmonary disease (COPD) (26.4%), asthma (14.5%), and abnormal chest X-ray in patients with chronic cough (4.0%). Interestingly, only 4.1% showed chronic laryngitis suggesting gastro-esophageal reflux syndrome (GERD). Each prevalence based on the etiology was not different between smokers and non-smokers, except for COPD. In multivariable analysis, current smoking, UACS, COPD, asthma, and chest X-ray abnormalities were independent risk factors for chronic cough, but chronic laryngitis was not significant. As for Korean population, GERD-related cough was not significantly prevalent, on the other hand, smoking and COPD need more special attention considering high prevalence. Approach for chronic cough may need different strategy for Korean population based
on the prevalence results.
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KEYWORD
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Chronic cough, Smoking, COPD, Upper airway cough syndrome, Asthma
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