Changes in the prevalence of COPD in Korea between 2001 and 2011 in the KNHANES data

BackgroundChronic obstructive pulmonary disease (COPD) is a serious public health problem. Understanding the longitudinal trend in prevalence is important for characterizing the burden of COPD and planning health services.MethodsWe analyzed the prevalence of airflow obstruction between 2001 and 2011 using data from Korean National Health and Nutritional Examination Surveys (2001, n = 2217; 2011, n = 3101). Participants >40 years of age with an...