Association of triglyceride glucose-related obesity indices with sarcopenia among U.S. adults: a cross-sectional study from the National Health and Nutrition Examination Survey

Abstract The triglyceride glucose (TyG) index-related obesity indices have been proposed as reliable indicators of insulin resistance. This study aims to investigate the association between TyG index-related obesity indices and sarcopenia as well as their potential as a tool for screening sarcopenic...

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Main Authors: Runtao Zhao, Xinqiang Ji, Fan Wang
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-84278-3
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author Runtao Zhao
Xinqiang Ji
Fan Wang
author_facet Runtao Zhao
Xinqiang Ji
Fan Wang
author_sort Runtao Zhao
collection DOAJ
description Abstract The triglyceride glucose (TyG) index-related obesity indices have been proposed as reliable indicators of insulin resistance. This study aims to investigate the association between TyG index-related obesity indices and sarcopenia as well as their potential as a tool for screening sarcopenic patients. A cross-sectional study was conducted involving 7,161 participants aged 18 and above from the National Health and Nutrition Examination Survey. TyG index and TyG index-related obesity indices, including triglyceride glucose-body mass index (TyG-BMI), triglyceride glucose-waist circumference (TyG-WC), and triglyceride glucose-waist-to-height ratio (TyG-WHtR) were determined using standard formulas. The ratio of appendicular skeletal muscle mass to BMI were used to assess sarcopenia. The relationship between the TyG index as well as TyG index-related obesity indices and sarcopenia was investigated using restricted cubic spline analysis and multivariate logistic regression analysis. The diagnostic value of the TyG index and TyG index -related obesity indices for sarcopenia was compared using the receiver operating characteristic (ROC) curve. In the fully adjusted regression model, a positive correlation was observed between the TyG-WHtR index and sarcopenia (for each one-unit increase in TyG-WHtR index: OR = 3.57, 95% CI: 2.71–4.71, P < 0.001). Additionally, regression analyses demonstrated TyG-WHtR as a significant predictor of sarcopenia with the highest odds ratio, reaching 12.50 (95% CI: 6.13–25.70, P < 0.001) for the upper fourth quartile (Q4) compared to the first quartile, followed by followed by TyG-BMI (Q4: 3.34; 95% CI: 1.92–5.80, P < 0.001) and TyG-WC (Q4: 1.95; 95% CI: 1.04–3.68, P < 0.001). The RCS curve fitting analysis indicated a U-shaped relationship between TyG-WHtR and the diagnosis of sarcopenia, with an inflection point at 4.02. Furthermore, in the ROC analysis, the AUC for the diagnosis of sarcopenia was largest for TyG-WHtR (0.79, P < 0.001). The TyG ndex-related obesity indices, especially TyG-WHtR, have been shown to be more effective in identifying sarcopenia patients than TyG alone.
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spelling doaj-art-eadce95797f14fd48281c13b4dcfbc7b2025-01-05T12:19:42ZengNature PortfolioScientific Reports2045-23222025-01-0115111310.1038/s41598-024-84278-3Association of triglyceride glucose-related obesity indices with sarcopenia among U.S. adults: a cross-sectional study from the National Health and Nutrition Examination SurveyRuntao Zhao0Xinqiang Ji1Fan Wang2Department of Cardiology, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General HospitalDepartment of Cardiology, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General HospitalDepartment of Cardiology, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General HospitalAbstract The triglyceride glucose (TyG) index-related obesity indices have been proposed as reliable indicators of insulin resistance. This study aims to investigate the association between TyG index-related obesity indices and sarcopenia as well as their potential as a tool for screening sarcopenic patients. A cross-sectional study was conducted involving 7,161 participants aged 18 and above from the National Health and Nutrition Examination Survey. TyG index and TyG index-related obesity indices, including triglyceride glucose-body mass index (TyG-BMI), triglyceride glucose-waist circumference (TyG-WC), and triglyceride glucose-waist-to-height ratio (TyG-WHtR) were determined using standard formulas. The ratio of appendicular skeletal muscle mass to BMI were used to assess sarcopenia. The relationship between the TyG index as well as TyG index-related obesity indices and sarcopenia was investigated using restricted cubic spline analysis and multivariate logistic regression analysis. The diagnostic value of the TyG index and TyG index -related obesity indices for sarcopenia was compared using the receiver operating characteristic (ROC) curve. In the fully adjusted regression model, a positive correlation was observed between the TyG-WHtR index and sarcopenia (for each one-unit increase in TyG-WHtR index: OR = 3.57, 95% CI: 2.71–4.71, P < 0.001). Additionally, regression analyses demonstrated TyG-WHtR as a significant predictor of sarcopenia with the highest odds ratio, reaching 12.50 (95% CI: 6.13–25.70, P < 0.001) for the upper fourth quartile (Q4) compared to the first quartile, followed by followed by TyG-BMI (Q4: 3.34; 95% CI: 1.92–5.80, P < 0.001) and TyG-WC (Q4: 1.95; 95% CI: 1.04–3.68, P < 0.001). The RCS curve fitting analysis indicated a U-shaped relationship between TyG-WHtR and the diagnosis of sarcopenia, with an inflection point at 4.02. Furthermore, in the ROC analysis, the AUC for the diagnosis of sarcopenia was largest for TyG-WHtR (0.79, P < 0.001). The TyG ndex-related obesity indices, especially TyG-WHtR, have been shown to be more effective in identifying sarcopenia patients than TyG alone.https://doi.org/10.1038/s41598-024-84278-3SarcopeniaInsulin resistanceTriglyceride glucose indexTriglyceride glucose-related obesity indicesNational Health and Nutrition Examination Survey
spellingShingle Runtao Zhao
Xinqiang Ji
Fan Wang
Association of triglyceride glucose-related obesity indices with sarcopenia among U.S. adults: a cross-sectional study from the National Health and Nutrition Examination Survey
Scientific Reports
Sarcopenia
Insulin resistance
Triglyceride glucose index
Triglyceride glucose-related obesity indices
National Health and Nutrition Examination Survey
title Association of triglyceride glucose-related obesity indices with sarcopenia among U.S. adults: a cross-sectional study from the National Health and Nutrition Examination Survey
title_full Association of triglyceride glucose-related obesity indices with sarcopenia among U.S. adults: a cross-sectional study from the National Health and Nutrition Examination Survey
title_fullStr Association of triglyceride glucose-related obesity indices with sarcopenia among U.S. adults: a cross-sectional study from the National Health and Nutrition Examination Survey
title_full_unstemmed Association of triglyceride glucose-related obesity indices with sarcopenia among U.S. adults: a cross-sectional study from the National Health and Nutrition Examination Survey
title_short Association of triglyceride glucose-related obesity indices with sarcopenia among U.S. adults: a cross-sectional study from the National Health and Nutrition Examination Survey
title_sort association of triglyceride glucose related obesity indices with sarcopenia among u s adults a cross sectional study from the national health and nutrition examination survey
topic Sarcopenia
Insulin resistance
Triglyceride glucose index
Triglyceride glucose-related obesity indices
National Health and Nutrition Examination Survey
url https://doi.org/10.1038/s41598-024-84278-3
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