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Different Prevalence of Asthma COPD Overlap According to Different Definitions
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A1713 - Different Prevalence of Asthma COPD Overlap According to Different Definitions
Author Block: K. Kyu Yean1, Y. Hyoung Kyu2, Y. Kwang Ha3, J. Ki Suck4, R. Chin Kook1; 1Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of, 2Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yeouido St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of, 3Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea, Republic of, 4Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Korea, Republic of.
Introduction: Some COPD patients showed overlapped features of asthma. However, there are various definitions in asthma COPD overlap (ACO). The aim of this study is to compare prevalence of ACO according to specialist diagnosis, modified Spanish, Don Sin’s, and GOLD/GINA definition.Method: This was prospective multicenter observational study. Members of Korean Asthma Research Group prospectively surveyed various questions to COPD patients enrolled in Korea COPD subgroup study team cohort. Clinical characteristics of patients were also collected prospectively. Result: From 22 hospitals, 681 COPD patients were enrolled. Members of Korean Asthma Research Group diagnosed 29% of COPD patients as ACO. According to modified Spanish criteria, 13% of COPD patients were classified as ACO. However, only 4.7% of patients were classified according to Don Sin’s definition. It was extremely difficult to define ACO according to GOLD/GINA definition because of various patterns of checkbox. Conclusion: The prevalence of ACO was varied a lot according to various definition. GOLD/GINA definition was not practical in clinical practice.
Author Block: K. Kyu Yean1, Y. Hyoung Kyu2, Y. Kwang Ha3, J. Ki Suck4, R. Chin Kook1; 1Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of, 2Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yeouido St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea, Republic of, 3Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Korea, Republic of, 4Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Korea, Republic of.
Introduction: Some COPD patients showed overlapped features of asthma. However, there are various definitions in asthma COPD overlap (ACO). The aim of this study is to compare prevalence of ACO according to specialist diagnosis, modified Spanish, Don Sin’s, and GOLD/GINA definition.Method: This was prospective multicenter observational study. Members of Korean Asthma Research Group prospectively surveyed various questions to COPD patients enrolled in Korea COPD subgroup study team cohort. Clinical characteristics of patients were also collected prospectively. Result: From 22 hospitals, 681 COPD patients were enrolled. Members of Korean Asthma Research Group diagnosed 29% of COPD patients as ACO. According to modified Spanish criteria, 13% of COPD patients were classified as ACO. However, only 4.7% of patients were classified according to Don Sin’s definition. It was extremely difficult to define ACO according to GOLD/GINA definition because of various patterns of checkbox. Conclusion: The prevalence of ACO was varied a lot according to various definition. GOLD/GINA definition was not practical in clinical practice.
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