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Prevalence of Chronic Obstructive Pulmonary Disease in Korea: The Result of Forth Korean National Health and Nutrition Examination Survey

Hwang, YI; Yoo, KH; Sheen, SS; Park, JH; Kim, SH; Yoon, HI; Lim, SC; Lee, SY; Park, JY; Park, SJ; Seo, KH; Kim, KU; Park, IW; Lee, SD; Kim, SK; Kim, YK; Lee, SM; Han, SK; Kim, Y; Cho, YM; Park, HJ; Oh, KW; Kim, YS; Oh, YM
Tuberculosis and respiratory diseases, 71(5):328-334, 2011
Journal Title
Tuberculosis and respiratory diseases
Background: Chronic obstructive pulmonary disease (COPD) is a major cause of chronic morbidity and mortality throughout the world and is the only major disease that is continuing to increase in both prevalence and mortality. The second Korean National Health and Nutrition Survey revealed that the prevalence of COPD in Korean subjects aged ≥45 years was 17.2% in 2001. Further surveys on the prevalence of COPD were not available until 2007. Here, we report the prevalence of spirometrically detected COPD in Korea, using data from the fourth Korean National Health and Nutrition Survey (KNHANES IV) which was conducted in 2007∼2009.

Materials and Methods : Based on the Korean Statistical Office census that used nationwide stratified random sampling, 10,523 subjects aged ≥40 years underwent spirometry. Place of residence, levels of education, income, and smoking status, as well as other results from a COPD survey questionnaire were also assessed.

Results: The prevalence of COPD (defined as forced expiratory volume in 1 sec/forced vital capacity <0.7 in subjects aged ≥40 years) was 12.9% (men, 18.7%; women, 7.5%). In total, 96.5% of patients with COPD had mild-to-moderate disease; only 2.5% had been diagnosed by physicians, and only 1.7% had been treated. The independent risk factors for COPD were smoking, advanced age, and male gender.

Conclusion: The prevalence of COPD was 12.9% in the KNHANES IV data. Most patients with COPD were undiagnosed and untreated. Based on these results, a strategy for early COPD intervention is warranted in high risk subjects.
Pulmonary DiseaseChronic ObstructiveKorea, PrevalenceSpirometry
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Journal Papers > School of Medicine / Graduate School of Medicine > Pulmonary & Critical Care Medicine
AJOU Authors
신, 승수박, 주헌
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