• Tingting Sang, Feng Gao, Xiao Lu, Ying Yang, Lingling Liu, Gang Zhang, and Guosong Han.
• Department of Rehabilitation, The People's Hospital of Suzhou New District, Suzhou, Jiangsu, China.
• Clinics (Sao Paulo). 2024 Jan 1; 79: 100450100450.

ObjectiveThe purpose of the present study was to examine the association of oxidative stress markers with sarcopenia in the general United States population under the age of 60.MethodsWe used the National Health and Nutrition Examination Survey data from 2011‒2014 and performed Restricted Cubic Spline (RCS) plots, weighted multivariable logistic regression analysis to calculate ratio ratios and 95% Confidence Intervals, and subgroup analysis based on age, sex, hypertension, diabetes mellitus, and body mass index stratification to determine the association of markers of oxidative stress with the prevalence of sarcopenia.ResultsThe present analysis included a total of 8,782 participants. Firstly, the RCS plots showed a roughly L-shaped curve association of total bilirubin and serum iron with a prevalence of sarcopenia. Secondly, albumin was negatively and linearly associated with the risk of sarcopenia. Finally, with the increase in gamma-glutamyl transferase, the prevalence of sarcopenia showed a trend of first rising and then declining as a result of the iron increase.ConclusionsWe demonstrated a nonlinear association between markers of oxidative stress and sarcopenia. The need to focus more on levels of oxidative stress in the body could provide better prevention strategies for sarcopenia.Copyright © 2024 HCFMUSP. Published by Elsevier España, S.L.U. All rights reserved.

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