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Background: Data regarding the association of sarcopenia with chronic lung disease (CLD) has led to inconclusive results. The main goal of this research was to investigate the association between sarcopenia and CLD in middle-aged and elderly individuals in China. Methods: The study sample consisted of 11,077 individuals without CLD at baseline chosen from the China Health and Retirement Longitudinal Study (CHARLS) data from 2015, followed up until 2018. Sarcopenia was identified utilizing the criteria set by the Asian Working Group on Sarcopenia (AWGS 2019) in 2019. Individuals were categorized into no-sarcopenia, possible-sarcopenia, and sarcopenia groups. The outcome of the study was considered to be incident CLD, which included chronic bronchitis, emphysema, pulmonary heart disease, and asthma. The association between sarcopenia and the risk of CLD was also examined by employing weighted Cox proportional hazard regression models. Results: A total of 356 (3.20 %) participants developed CLD during the 3.6-year follow-up period. The cumulative incidence of CLD in the no-sarcopenia, possible-sarcopenia, and sarcopenia groups was 2.80 % (230/8222), 4.37 % (55/1260), and 4.45 % (71/1595), respectively. Individuals with possible sarcopenia {hazard ratio [HR] [95 % confidence interval (CI)]: 1.48 [1.04–2.09]} and sarcopenia [HR (95 % CI): 1.68 (1.12–2.51)] demonstrated a considerably high risk of developing CLD compared to individuals in the no-sarcopenia group. Moreover, individuals diagnosed with sarcopenia, as per the criteria established by the European Working Group on Sarcopenia in Older People (EWGSOP) 2018, were at considerably high risk for developing CLD compared to those in the no-sarcopenia group. Conclusion: This research involving adult Chinese individuals demonstrated a significant association between, possible sarcopenia and sarcopenia with an elevated risk of incident CLD, thereby emphasizing the importance of monitoring respiratory health in this population. Key points: Question: Whether muscle mass and sarcopenia are associated with the development of chronic lung disease (CLD) in Asian middle-aged and elderly individuals.Findings: This longitudinal study encompassing 11,077 adults aged ≥45 years from the China Health and Retirement Longitudinal Study (CHARLS) data with 3.6 years of follow-up revealed a positive association between sarcopenia at baseline and incidence of CLD.Meaning: The findings suggest that possible sarcopenia and sarcopenia are linked to the development of CLD. Consequently, middle-aged and elderly individuals with possible sarcopenia and sarcopenia can be considered vulnerable regarding the primary prevention strategies for CLD. |
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