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Clinical features and prognosis of patients with idiopathic pulmonary fibrosis and chronic obstructive pulmonary disease

Authors
 Lee, S. H.  ;  Park, J. S.  ;  Kim, S. Y.  ;  Kim, D. S.  ;  Kim, Y. W.  ;  Chung, M. P.  ;  Uh, S. T.  ;  Park, C. S.  ;  Park, S. W.  ;  Jeong, S. H.  ;  Park, Y. B.  ;  Lee, H. L.  ;  Shin, J. W.  ;  Lee, J. H.  ;  Jegal, Y.  ;  Lee, H. K.  ;  Kim, Y. H.  ;  Song, J. W.  ;  Park, M. S. 
Citation
 International Journal of Tuberculosis and Lung Disease, Vol.23(6) : 678-684, 2019 
Journal Title
 International Journal of Tuberculosis and Lung Disease 
ISSN
 1027-3719 
Issue Date
2019
Keywords
IPF ; chronic obstructive pulmonary fibrosis ; prognosis
Abstract
Idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD) share common risk factors. They could therefore be expressed in a single patient. However, the prevalence, clinical characteristics and prognosis of individuals with comorbid IPF and COPD are not known. From 2003 to 2007, the Korean Interstitial Lung Disease Study Group created a register for idiopathic interstitial pneumonia using 2002 ATS/ERS (American Thoracic Society/European Respiratory Society) criteria. Of the 1546 IPF patients assessed, 143 had decreased lung function consistent with COPD (IPF-COPD). COPD was diagnosed based on age (≥40 years) and pulmonary function (forced expiratory volume in 1 sec [FEV1]/forced vital capacity [FVC] ratio < 0.7). The median age of the IPF-COPD group was 71.0 years (interquartile range 66.0–76.0); most patients were male (88.1%). FVC (%) was significantly higher in the IPF-COPD group; however, FEV1 (%) was significantly lower in the IPF-COPD group (P < 0.001). Diffusing capacity of the lung for carbon monoxide (DLCO) was not significantly different between the two groups. In survival analysis, age and FVC (%), but not COPD, were significantly associated with prognosis (respectively P = 0.003, 0.001 and 0.401). COPD severity was also not related to prognosis (P = 0.935). The prevalence of IPF-COPD was estimated to be ∼9.2% among all IPF patients; prognosis of patients with IPF-COPD was not worse than those with IPF alone.
Full Text
https://www.ingentaconnect.com/content/iuatld/ijtld/2019/00000023/00000006/art00006%3bjsessionid=1qtlp6rwguf1o.x-ic-live-02
DOI
10.5588/ijtld.18.0194
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Song Yee(김송이) ORCID logo https://orcid.org/0000-0001-8627-486X
Park, Moo Suk(박무석) ORCID logo https://orcid.org/0000-0003-0820-7615
Lee, Sang Hoon(이상훈) ORCID logo https://orcid.org/0000-0002-7706-5318
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/171103
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