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Differences in prevalence of asthma–COPD overlap according to different criteria

Authors
 Jin Hwa Song  ;  Chang-Hoon Lee  ;  Deog Keom Kim  ;  HyoungKyu Yoon  ;  Min Kwang Byun  ;  Chin Kook Rhee  ;  Jaechun Lee  ;  Woo Jin Kim  ;  Yong Il Hwang  ;  Kwang Ha Yoo  ;  Ki Suck Jung 
Citation
 Medicine, Vol.97(36) : e12049, 2018 
Journal Title
 Medicine 
ISSN
 0025-7974 
Issue Date
2018
MeSH
Aged ; Asthma/complications ; Asthma/diagnosis* ; Asthma/epidemiology* ; Female ; Follow-Up Studies ; Humans ; Male ; Prevalence ; Prospective Studies ; Pulmonary Disease, Chronic Obstructive/complications ; Pulmonary Disease, Chronic Obstructive/diagnosis* ; Pulmonary Disease, Chronic Obstructive/epidemiology* ; Republic of Korea/epidemiology ; Risk Factors ; Treatment Outcome
Keywords
acute exacerbation ; asthma–COPD overlap ; chronic obstructive lung disease ; prevalence
Abstract
Asthma and chronic obstructive pulmonary disease (COPD) are common chronic airway diseases. Overlap in the clinical features of these 2 diseases is observed in many cases, and thus, the concept of asthma-COPD overlap (ACO) has recently been proposed. However, the definition of ACO and the clinical significance remains to be determined.We evaluated the prevalence and risk of acute exacerbation in ACO among Korean COPD patients as defined by modified Spanish criteria and American Thoracic Society (ATS) Roundtable criteria.The prevalence of ACO was 47.7% (660/1383) by modified Spanish criteria and 1.9% (26/1383) by ATS Roundtable criteria. ACO, regardless of criteria, did not significant affect the exacerbation risk during at least 1-year follow-up period.Substantial discrepancies were found in the prevalence and outcome of ACO according to different diagnostic criteria, which would compromise implementation of ACO before the definition is established.
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DOI
10.1097/MD.0000000000012049
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
변민광(Byun, Min Kwang) ORCID logo https://orcid.org/0000-0003-1525-1745
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/163727
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