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Longitudinal decline in lung function: a community-based cohort study in Korea

Authors
 Ah Young Leem  ;  Boram Park  ;  Young Sam Kim  ;  Joon Chang  ;  Sungho Won  ;  Ji Ye Jung 
Citation
 SCIENTIFIC REPORTS, Vol.9(1) : e13614, 2019 
Journal Title
 SCIENTIFIC REPORTS 
Issue Date
2019
Abstract
Progressive decline in lung function is the hallmark of chronic obstructive pulmonary disease (COPD). We aimed to assess the rate of decline in forced expiratory volume in 1 second (FEV1) in patients from a community cohort database in Korea. 5,865 subjects aged 40-69 years from the Ansung-Ansan cohort database I-III (2001-2006) were included in this study. We assessed the annual rate of decline in FEV1 over time in relation to smoking status, patient sex, and presence or absence of pre-bronchodilator airflow limitation using a generalized additive mixed model. The mean follow-up duration was 3.8 years. The annual mean decline in FEV1 in the entire cohort was significantly more rapid for men than women (31.3 mL vs 27.0 mL, P = 0.003). Among men without pre-bronchodilator airflow limitation, annual mean declines in FEV1 were 31.5, 35.5, and 40.1 mL for never smokers, former smokers (P = 0.09 vs. never smokers), and current smokers (P < 0.001 vs. never smokers), respectively; and 23.4, 19.7, and 33.9 mL, respectively, for men with pre-bronchodilator airflow limitation. Thus, among Korean males, smoking accelerates lung function decline over time whereas smoking cessation slows the rate of FEV1 decline regardless of pre-bronchodilator airflow limitation. This underscores the importance of smoking cessation in Koreans.
Files in This Item:
T201904290.pdf Download
DOI
10.1038/s41598-019-49598-9
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Young Sam(김영삼) ORCID logo https://orcid.org/0000-0001-9656-8482
Leem, Ah Young(임아영) ORCID logo https://orcid.org/0000-0001-5165-3704
Chang, Joon(장준) ORCID logo https://orcid.org/0000-0003-4542-6841
Jung, Ji Ye(정지예) ORCID logo https://orcid.org/0000-0003-1589-4142
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/173214
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