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The Risk Factors and Characteristics of COPD Among Nonsmokers in Korea: An Analysis of KNHANES IV and V.

 Su Hwan Lee  ;  Eu Dong Hwang  ;  Ju Eun Lim  ;  Sungwoo Moon  ;  Young Ae Kang  ;  Ji Ye Jung  ;  Moo Suk Park  ;  Se Kyu Kim  ;  Joon Chang  ;  Young Sam Kim  ;  Song Yee Kim 
 Lung, Vol.194(3) : 353-361, 2016 
Journal Title
Issue Date
Adult ; Age Factors ; Aged ; Anxiety/epidemiology ; Asthma/epidemiology ; Body Mass Index ; Comorbidity ; Cross-Sectional Studies ; Depression/epidemiology ; Female ; Humans ; Male ; Middle Aged ; Mobility Limitation ; Nutrition Surveys ; Pain/epidemiology ; Prevalence ; Pulmonary Disease, Chronic Obstructive/epidemiology* ; Pulmonary Disease, Chronic Obstructive/physiopathology* ; Quality of Life ; Republic of Korea/epidemiology ; Risk Factors ; Rural Population/statistics & numerical data ; Sex Factors ; Smoking/epidemiology* ; Spirometry ; Tuberculosis, Pulmonary/epidemiology ; Urban Population/statistics & numerical data
Chronic obstructive pulmonary disease ; Never-smoker ; Nonsmoker ; Population study ; Quality of life
PURPOSE: Chronic obstructive pulmonary disease (COPD) is increasing in prevalence and mortality. This study evaluated the prevalence, risk factors, characteristics, and health-related quality of life (HRQoL) of COPD among nonsmokers in Korea. METHODS: This was a population-based cross-sectional study using data obtained from the Fourth and Fifth Korean National Health and Nutrition Examination Survey, which was conducted from 2007 to 2011. RESULTS: A total of 15,063 participants completely answered the questionnaire and performed the spirometry. Among them, 59.6 % were nonsmokers and 40.4 % were smokers. The prevalence of nonsmoker COPD was 7.1 %. On multivariate analysis, age ≥65 years (OR, 2.93; 95 % CI, 2.44-3.51), male sex (OR, 2.98; 95 % CI, 2.40-3.71), living in rural area (OR, 1.26; 95 % CI, 1.05-1.51), lower body mass index (BMI) (<18.5 kg/m(2)) (OR, 3.00; 95 % CI, 1.78-5.01), self-reported asthma (OR, 2.72; 95 % CI, 2.05-3.60), and self-reported tuberculosis (OR, 4.73; 95 % CI, 3.63-6.17) showed a significantly higher risk of nonsmoker COPD. Analysis of nonsmoker and smoker COPD revealed that there are more females in nonsmoker COPD patients (73.9 vs. 6.9 %, P < 0.001). Nonsmoker COPD patients presented with impaired mobility, pain/discomfort, and anxiety/depression functions as well as a lower mean EuroQol Five-Dimension Questionnaire utility score, which showed HRQoL. CONCLUSIONS: The burden of nonsmoker COPD was considerable. Older age, male sex, lower BMI, self-reported asthma, and self-reported tuberculosis were risk factors for nonsmoker COPD and there were differences between nonsmoker and smoker COPD in terms of sex, comorbidities, and HRQoL.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
강영애(Kang, Young Ae) ORCID logo https://orcid.org/0000-0002-7783-5271
김세규(Kim, Se Kyu)
김송이(Kim, Song Yee) ORCID logo https://orcid.org/0000-0001-8627-486X
김영삼(Kim, Young Sam) ORCID logo https://orcid.org/0000-0001-9656-8482
문성우(Moon, Sung Woo) ORCID logo https://orcid.org/0000-0001-9917-9802
박무석(Park, Moo Suk) ORCID logo https://orcid.org/0000-0003-0820-7615
이수환(Lee, Su Hwan) ORCID logo https://orcid.org/0000-0002-3487-2574
장준(Chang, Joon) ORCID logo https://orcid.org/0000-0003-4542-6841
정지예(Jung, Ji Ye) ORCID logo https://orcid.org/0000-0003-1589-4142
황의동(Hwang, Eu Dong)
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