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已发表论文
相对脂肪量在慢性阻塞性肺疾病患病率和严重程度中的意义：来自两个队列的证据
Authors Tu T, Yu Y, Fan Y, Li X, Ye Z, Xu R, Bu Y, Zhao X, Chen X, Liu C, Yu B, Xu Y, Zhang X , Huang Y
Received 2 June 2025
Accepted for publication 11 October 2025
Published 29 October 2025 Volume 2025:20 Pages 3501—3512
DOI https://doi.org/10.2147/COPD.S540092
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 3
Editor who approved publication: Professor Richard Russell
Tingting Tu,1,* Yiting Yu,2,* Yichuan Fan,3,* Xinran Li,4 Zihan Ye,4 Ruizi Xu,2 Yiran Bu,5 Xiuxiu Zhao,1 Xianjing Chen,1 Chunyan Liu,1 Beibei Yu,1 Yage Xu,1 Xiaodiao Zhang,1 Yiben Huang1
1Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 2Renji College, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 3Alberta Institute, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 4The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 5The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
*These authors contributed equally to this work
Correspondence: Xiaodiao Zhang, Department of Respiratory Medicine, The Third Affiliated Hospital of Wenzhou Medical University, No. 108 Wansong Road, Wenzhou, Zhejiang, 325000, People’s Republic of China, Email xiaodiao_zhang@126.com Yiben Huang, Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China, Email huangyiben@126.com
Background: Chronic obstructive pulmonary disease (COPD) poses a major global health burden with high morbidity. Relative fat mass (RFM), as a novel body fat measurement indicator, can reflect the distribution of body fat. This study aims to elucidate its associations with COPD prevalence and severity in two cohorts to enhance prevention and treatment strategies.
Methods: We retrospectively investigated the medical records of 166 patients with COPD and the data of 2654 subjects from two cohorts. To explore the relative importance of factors in COPD prevalence and severity, we built an extreme gradient boosting (XGBoost) machine-learning model. Logistic regression models were used to assess the relationship between COPD and RFM, with subgroup analysis to clarify the difference across diverse subgroups. Furthermore, restricted cubic spline (RCS) curves were used to explore the exposure-response relationship.
Results: Multivariate logistic regression analysis revealed a significant positive association between RFM and COPD prevalence (OR = 1.043, 95% CI: 1.004– 1.083, p = 0.030) and a negative association with COPD severity (OR = 0.892, 95% CI: 0.813– 0.978, p = 0.015). According to the RCS curves, there was no nonlinear association between RFM and COPD prevalence or severity (p for nonlinear = 0.703, p for nonlinear = 0.348).
Conclusion: RFM was positively associated with the prevalence of COPD but inversely associated with its severity. Specifically, RFM predicted COPD prevalence more accurately in individuals aged 40– 60 and smokers, while it predicted COPD severity more effectively in those aged ≥ 60.
Keywords: relative fat mass, chronic obstructive pulmonary disease, obesity, body mass index, body fat distribution
1Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 2Renji College, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 3Alberta Institute, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 4The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 5The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
*These authors contributed equally to this work
Correspondence: Xiaodiao Zhang, Department of Respiratory Medicine, The Third Affiliated Hospital of Wenzhou Medical University, No. 108 Wansong Road, Wenzhou, Zhejiang, 325000, People’s Republic of China, Email xiaodiao_zhang@126.com Yiben Huang, Department of Respiratory and Critical Medicine, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China, Email huangyiben@126.com
Background: Chronic obstructive pulmonary disease (COPD) poses a major global health burden with high morbidity. Relative fat mass (RFM), as a novel body fat measurement indicator, can reflect the distribution of body fat. This study aims to elucidate its associations with COPD prevalence and severity in two cohorts to enhance prevention and treatment strategies.
Methods: We retrospectively investigated the medical records of 166 patients with COPD and the data of 2654 subjects from two cohorts. To explore the relative importance of factors in COPD prevalence and severity, we built an extreme gradient boosting (XGBoost) machine-learning model. Logistic regression models were used to assess the relationship between COPD and RFM, with subgroup analysis to clarify the difference across diverse subgroups. Furthermore, restricted cubic spline (RCS) curves were used to explore the exposure-response relationship.
Results: Multivariate logistic regression analysis revealed a significant positive association between RFM and COPD prevalence (OR = 1.043, 95% CI: 1.004– 1.083, p = 0.030) and a negative association with COPD severity (OR = 0.892, 95% CI: 0.813– 0.978, p = 0.015). According to the RCS curves, there was no nonlinear association between RFM and COPD prevalence or severity (p for nonlinear = 0.703, p for nonlinear = 0.348).
Conclusion: RFM was positively associated with the prevalence of COPD but inversely associated with its severity. Specifically, RFM predicted COPD prevalence more accurately in individuals aged 40– 60 and smokers, while it predicted COPD severity more effectively in those aged ≥ 60.
Keywords: relative fat mass, chronic obstructive pulmonary disease, obesity, body mass index, body fat distribution