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The effect of low body mass index on the development of chronic obstructive pulmonary disease and mortality

Authors
 H. J. Park  ;  J. H. Cho  ;  H. J. Kim  ;  J.‐Y. Park  ;  H. S. Lee  ;  M. K. Byun 
Citation
 Journal of Internal Medicine, Vol.286(5) : 573-582, 2019 
Journal Title
 Journal of Internal Medicine 
ISSN
 0954-6820 
Issue Date
2019
Keywords
body mass index ; chronic obstructive pulmonary disease ; mortality ; sarcopenia ; survival
Abstract
BACKGROUND: Sarcopenia may worsen disease progression and lead to poor outcomes in chronic obstructive pulmonary disease (COPD). OBJECTIVES: We aimed to determine the effect of BMI on the development of COPD and mortality. METHODS: We enrolled 437 584 participants registered in the physical health check-up cohort database of the Korean National Health Interview Survey from 2002 to 2003, and we defined COPD diagnosis based on the ICD-10 code and prescribed medication. BMI (kg m-2 ) classified them to five groups (low BMI < 18.5, normal BMI 18.5-23, overweight 23-25, obesity 25-30, severe obesity ≥30) at baseline. RESULTS: Participants in the low BMI group had a significantly higher rate of COPD development for 13 years (7.6%) than those in other groups (3.4-4.1%, P < 0.0001). Amongst never or light smokers, COPD development in the low BMI group (5.6-6.7%) was significantly higher than that in other groups (2.8-4.7%). Similarly, amongst participants with a smoking history of ≥30 years, COPD development in the low BMI group (20.1%) was higher than those in other groups (8.4-12.4%). On multivariable analysis, normal or higher than normal body weight was significantly protective against the development of COPD (hazard ratio [HR], 0.609-0.739,) compared to low BMI. COPD-free-survival (HR, 0.491-0.622) and overall survival (HR, 0.440-0.585) were also better in them compared to those with low BMI (all P < 0.0001). CONCLUSIONS: Low BMI is an important risk factor for COPD development and mortality. Maintaining adequate body weight may reduce the risk for COPD development and mortality.
Full Text
https://onlinelibrary.wiley.com/doi/full/10.1111/joim.12949
DOI
10.1111/joim.12949
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원) > 1. Journal Papers
Yonsei Authors
Kim, Hyung Jung(김형중) ORCID logo https://orcid.org/0000-0003-2498-0683
Park, JuYoung(박주영)
Park, Hye Jung(박혜정) ORCID logo https://orcid.org/0000-0002-1862-1003
Byun, Min Kwang(변민광) ORCID logo https://orcid.org/0000-0003-1525-1745
Lee, Hye Sun(이혜선) ORCID logo https://orcid.org/0000-0001-6328-6948
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/173169
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