Prevalence of chronic obstructive pulmonary disease in Korea: The fourth Korean National Health and Nutrition Examination Survey, 2008

Kwang H. Yoo, Young S. Kim, Seung S. Sheen, Joo H. Park, Yong I. Hwang, Sang Ha Kim, Ho I. Yoon, Sung C. Lim, Jae Y. Park, Seoung J. Park, Ki H. Seo, Ki U. Kim, Yeon Mok Oh, Na Y. Lee, Ji S. Kim, Kyung W. Oh, Young T. Kim, In Won Park, Sang Do Lee, Se K. KimYoung K. Kim, Sung K. Han

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Abstract

Background and objective: Because the mortality and social burden associated with COPD is increasing, repeated surveys of the prevalence of COPD have been used to assess risk factors, detect potential patients, and establish early diagnoses and management protocols. We report the prevalence of spirometrically detected COPD in Korea in 2008, using data from the fourth Korean National Health and Nutrition Survey. Methods: Using nationwide stratified random sampling, based on the Korean Statistical Office census, 6840 subjects aged ≥19 years underwent spirometry, which was performed by four trained technicians, during 2008. The place of residence, levels of education and income and smoking status, as well as other results from a COPD survey questionnaire were also assessed. Results: Airflow obstruction (FEV 1/FVC < 0.7) was detected in 8.8% of subjects aged ≥19 years (11.6% of men and 5.9% of women) and COPD was detected in 13.4% of subjects aged ≥40 years (19.4% of men and 7.9% of women). Of the 6840 subjects, 27.3% were current smokers and 17.2% were former smokers, and the prevalence of COPD was higher in current and former smokers than in never smokers. Approximately 94% of patients with COPD had mild-to-moderate disease, without apparent symptoms; only 2.4% had been diagnosed by a physician and only 2.1% of patients had been treated. The independent risk factors for COPD were smoking, advanced age and male gender. Conclusions: Although the prevalence of COPD in Korea is high, the disease is underdiagnosed and most COPD patients are under-treated. A nationwide survey of a Korean population, with stratified random sampling, revealed that the prevalence of COPD was high (13.4%) but that most COPD patients were undiagnosed or under-treated. This study provides further evidence that COPD is prevalent but is underdiagnosed and undertreated.

Original languageEnglish
Pages (from-to)659-665
Number of pages7
JournalRespirology
Volume16
Issue number4
DOIs
Publication statusPublished - 2011 May 1

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Nutrition Surveys
Korea
Chronic Obstructive Pulmonary Disease
Smoking
Spirometry
Censuses
Health Surveys
Early Diagnosis

All Science Journal Classification (ASJC) codes

  • Pulmonary and Respiratory Medicine

Cite this

Yoo, Kwang H. ; Kim, Young S. ; Sheen, Seung S. ; Park, Joo H. ; Hwang, Yong I. ; Kim, Sang Ha ; Yoon, Ho I. ; Lim, Sung C. ; Park, Jae Y. ; Park, Seoung J. ; Seo, Ki H. ; Kim, Ki U. ; Oh, Yeon Mok ; Lee, Na Y. ; Kim, Ji S. ; Oh, Kyung W. ; Kim, Young T. ; Park, In Won ; Lee, Sang Do ; Kim, Se K. ; Kim, Young K. ; Han, Sung K. / Prevalence of chronic obstructive pulmonary disease in Korea : The fourth Korean National Health and Nutrition Examination Survey, 2008. In: Respirology. 2011 ; Vol. 16, No. 4. pp. 659-665.
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title = "Prevalence of chronic obstructive pulmonary disease in Korea: The fourth Korean National Health and Nutrition Examination Survey, 2008",
abstract = "Background and objective: Because the mortality and social burden associated with COPD is increasing, repeated surveys of the prevalence of COPD have been used to assess risk factors, detect potential patients, and establish early diagnoses and management protocols. We report the prevalence of spirometrically detected COPD in Korea in 2008, using data from the fourth Korean National Health and Nutrition Survey. Methods: Using nationwide stratified random sampling, based on the Korean Statistical Office census, 6840 subjects aged ≥19 years underwent spirometry, which was performed by four trained technicians, during 2008. The place of residence, levels of education and income and smoking status, as well as other results from a COPD survey questionnaire were also assessed. Results: Airflow obstruction (FEV 1/FVC < 0.7) was detected in 8.8{\%} of subjects aged ≥19 years (11.6{\%} of men and 5.9{\%} of women) and COPD was detected in 13.4{\%} of subjects aged ≥40 years (19.4{\%} of men and 7.9{\%} of women). Of the 6840 subjects, 27.3{\%} were current smokers and 17.2{\%} were former smokers, and the prevalence of COPD was higher in current and former smokers than in never smokers. Approximately 94{\%} of patients with COPD had mild-to-moderate disease, without apparent symptoms; only 2.4{\%} had been diagnosed by a physician and only 2.1{\%} of patients had been treated. The independent risk factors for COPD were smoking, advanced age and male gender. Conclusions: Although the prevalence of COPD in Korea is high, the disease is underdiagnosed and most COPD patients are under-treated. A nationwide survey of a Korean population, with stratified random sampling, revealed that the prevalence of COPD was high (13.4{\%}) but that most COPD patients were undiagnosed or under-treated. This study provides further evidence that COPD is prevalent but is underdiagnosed and undertreated.",
author = "Yoo, {Kwang H.} and Kim, {Young S.} and Sheen, {Seung S.} and Park, {Joo H.} and Hwang, {Yong I.} and Kim, {Sang Ha} and Yoon, {Ho I.} and Lim, {Sung C.} and Park, {Jae Y.} and Park, {Seoung J.} and Seo, {Ki H.} and Kim, {Ki U.} and Oh, {Yeon Mok} and Lee, {Na Y.} and Kim, {Ji S.} and Oh, {Kyung W.} and Kim, {Young T.} and Park, {In Won} and Lee, {Sang Do} and Kim, {Se K.} and Kim, {Young K.} and Han, {Sung K.}",
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Yoo, KH, Kim, YS, Sheen, SS, Park, JH, Hwang, YI, Kim, SH, Yoon, HI, Lim, SC, Park, JY, Park, SJ, Seo, KH, Kim, KU, Oh, YM, Lee, NY, Kim, JS, Oh, KW, Kim, YT, Park, IW, Lee, SD, Kim, SK, Kim, YK & Han, SK 2011, 'Prevalence of chronic obstructive pulmonary disease in Korea: The fourth Korean National Health and Nutrition Examination Survey, 2008', Respirology, vol. 16, no. 4, pp. 659-665. https://doi.org/10.1111/j.1440-1843.2011.01951.x

Prevalence of chronic obstructive pulmonary disease in Korea : The fourth Korean National Health and Nutrition Examination Survey, 2008. / Yoo, Kwang H.; Kim, Young S.; Sheen, Seung S.; Park, Joo H.; Hwang, Yong I.; Kim, Sang Ha; Yoon, Ho I.; Lim, Sung C.; Park, Jae Y.; Park, Seoung J.; Seo, Ki H.; Kim, Ki U.; Oh, Yeon Mok; Lee, Na Y.; Kim, Ji S.; Oh, Kyung W.; Kim, Young T.; Park, In Won; Lee, Sang Do; Kim, Se K.; Kim, Young K.; Han, Sung K.

In: Respirology, Vol. 16, No. 4, 01.05.2011, p. 659-665.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Prevalence of chronic obstructive pulmonary disease in Korea

T2 - The fourth Korean National Health and Nutrition Examination Survey, 2008

AU - Yoo, Kwang H.

AU - Kim, Young S.

AU - Sheen, Seung S.

AU - Park, Joo H.

AU - Hwang, Yong I.

AU - Kim, Sang Ha

AU - Yoon, Ho I.

AU - Lim, Sung C.

AU - Park, Jae Y.

AU - Park, Seoung J.

AU - Seo, Ki H.

AU - Kim, Ki U.

AU - Oh, Yeon Mok

AU - Lee, Na Y.

AU - Kim, Ji S.

AU - Oh, Kyung W.

AU - Kim, Young T.

AU - Park, In Won

AU - Lee, Sang Do

AU - Kim, Se K.

AU - Kim, Young K.

AU - Han, Sung K.

PY - 2011/5/1

Y1 - 2011/5/1

N2 - Background and objective: Because the mortality and social burden associated with COPD is increasing, repeated surveys of the prevalence of COPD have been used to assess risk factors, detect potential patients, and establish early diagnoses and management protocols. We report the prevalence of spirometrically detected COPD in Korea in 2008, using data from the fourth Korean National Health and Nutrition Survey. Methods: Using nationwide stratified random sampling, based on the Korean Statistical Office census, 6840 subjects aged ≥19 years underwent spirometry, which was performed by four trained technicians, during 2008. The place of residence, levels of education and income and smoking status, as well as other results from a COPD survey questionnaire were also assessed. Results: Airflow obstruction (FEV 1/FVC < 0.7) was detected in 8.8% of subjects aged ≥19 years (11.6% of men and 5.9% of women) and COPD was detected in 13.4% of subjects aged ≥40 years (19.4% of men and 7.9% of women). Of the 6840 subjects, 27.3% were current smokers and 17.2% were former smokers, and the prevalence of COPD was higher in current and former smokers than in never smokers. Approximately 94% of patients with COPD had mild-to-moderate disease, without apparent symptoms; only 2.4% had been diagnosed by a physician and only 2.1% of patients had been treated. The independent risk factors for COPD were smoking, advanced age and male gender. Conclusions: Although the prevalence of COPD in Korea is high, the disease is underdiagnosed and most COPD patients are under-treated. A nationwide survey of a Korean population, with stratified random sampling, revealed that the prevalence of COPD was high (13.4%) but that most COPD patients were undiagnosed or under-treated. This study provides further evidence that COPD is prevalent but is underdiagnosed and undertreated.

AB - Background and objective: Because the mortality and social burden associated with COPD is increasing, repeated surveys of the prevalence of COPD have been used to assess risk factors, detect potential patients, and establish early diagnoses and management protocols. We report the prevalence of spirometrically detected COPD in Korea in 2008, using data from the fourth Korean National Health and Nutrition Survey. Methods: Using nationwide stratified random sampling, based on the Korean Statistical Office census, 6840 subjects aged ≥19 years underwent spirometry, which was performed by four trained technicians, during 2008. The place of residence, levels of education and income and smoking status, as well as other results from a COPD survey questionnaire were also assessed. Results: Airflow obstruction (FEV 1/FVC < 0.7) was detected in 8.8% of subjects aged ≥19 years (11.6% of men and 5.9% of women) and COPD was detected in 13.4% of subjects aged ≥40 years (19.4% of men and 7.9% of women). Of the 6840 subjects, 27.3% were current smokers and 17.2% were former smokers, and the prevalence of COPD was higher in current and former smokers than in never smokers. Approximately 94% of patients with COPD had mild-to-moderate disease, without apparent symptoms; only 2.4% had been diagnosed by a physician and only 2.1% of patients had been treated. The independent risk factors for COPD were smoking, advanced age and male gender. Conclusions: Although the prevalence of COPD in Korea is high, the disease is underdiagnosed and most COPD patients are under-treated. A nationwide survey of a Korean population, with stratified random sampling, revealed that the prevalence of COPD was high (13.4%) but that most COPD patients were undiagnosed or under-treated. This study provides further evidence that COPD is prevalent but is underdiagnosed and undertreated.

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