The role of triglyceride-glucose index in the progression of cardiovascular-kidney-metabolic syndrome: findings from the China health and retirement longitudinal study

BackgroundCardiovascular-kidney-metabolic (CKM) syndrome is highly prevalent among adults and contributes substantially to cardiovascular morbidity and mortality. However, strategies for its early identification and prevention remain inadequately defined. The triglyceride-glucose (TyG) index, a surr...

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Main Authors: Xingyu Zhou, Yisi Liu, Jiafei Peng, Xianliang Zhou, Hongtao Wei
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Cardiovascular Medicine
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Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2025.1612121/full
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author Xingyu Zhou
Xingyu Zhou
Yisi Liu
Yisi Liu
Yisi Liu
Yisi Liu
Jiafei Peng
Jiafei Peng
Jiafei Peng
Jiafei Peng
Xianliang Zhou
Hongtao Wei
Hongtao Wei
Hongtao Wei
Hongtao Wei
author_facet Xingyu Zhou
Xingyu Zhou
Yisi Liu
Yisi Liu
Yisi Liu
Yisi Liu
Jiafei Peng
Jiafei Peng
Jiafei Peng
Jiafei Peng
Xianliang Zhou
Hongtao Wei
Hongtao Wei
Hongtao Wei
Hongtao Wei
author_sort Xingyu Zhou
collection DOAJ
description BackgroundCardiovascular-kidney-metabolic (CKM) syndrome is highly prevalent among adults and contributes substantially to cardiovascular morbidity and mortality. However, strategies for its early identification and prevention remain inadequately defined. The triglyceride-glucose (TyG) index, a surrogate marker of insulin resistance, may be associated with CKM progression, but its role across diverse populations and CKM progression patterns warrants further investigation.MethodsA total of 6,311 participants from the China Health and Retirement Longitudinal Study (CHARLS) were included. Associations between the TyG index and CKM progression were assessed using Cox proportional hazards and restricted cubic spline models. Subgroup analyses were conducted by age (<65 vs. ≥65 years), sex, and baseline CKM stage. CKM progression was further categorized to explore associations with specific metabolic outcomes.ResultsAmong 6,311 participants (mean age 57.8 years, 46.3% male), 31.3% experienced CKM progression over a median follow-up of 48 months. The TyG index was significantly associated with CKM progression in individuals aged ≥65 years, with a notable interaction between age and TyG (P for interaction <0.001). In participants with baseline CKM stage 0 or 1, higher TyG levels predicted greater CKM progression risk. A U-shaped relationship was observed in stage 0 (P = 0.018, P for non-linearity = 0.09), whereas a linear positive association was noted in stage 1 (P = 0.002, P for non-linearity = 0.008). Elevated TyG was primarily linked to subsequent hypertriglyceridemia in stage 0 (Q4 vs. Q1: HR 3.13, 95% CI 1.65–5.91, P < 0.001) and to future diabetes (Q4 vs. Q1: HR 2.85, 95% CI 1.56–5.22, P < 0.01), metabolic syndrome (Q4 vs. Q1: HR 1.62, 95% CI 1.10–2.37, P < 0.05), and hypertriglyceridemia (Q3 vs. Q1: HR 1.63, 95% CI 1.13–2.34, P < 0.01; Q4 vs. Q1: HR 2.21, 95% CI 1.58–3.08, P < 0.01) in stage 1.ConclusionElevated TyG index is a significant predictor of CKM progression, particularly via the development of metabolic abnormalities. Its predictive value varies across age groups and CKM stages. Early screening and intervention targeting TyG levels, especially in older adults and those with early-stage CKM, may be critical for halting CKM progression and reducing future cardiovascular risk.
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spelling doaj-art-26e531f750754131ad8dff2df8b6153a2025-08-20T03:47:19ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2025-06-011210.3389/fcvm.2025.16121211612121The role of triglyceride-glucose index in the progression of cardiovascular-kidney-metabolic syndrome: findings from the China health and retirement longitudinal studyXingyu Zhou0Xingyu Zhou1Yisi Liu2Yisi Liu3Yisi Liu4Yisi Liu5Jiafei Peng6Jiafei Peng7Jiafei Peng8Jiafei Peng9Xianliang Zhou10Hongtao Wei11Hongtao Wei12Hongtao Wei13Hongtao Wei14National Clinical Research Center of Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaDepartment of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaDepartment of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, ChinaState Key Laboratory of Digestive Health, Beijing, ChinaNational Clinical Research Center for Digestive Disease, Beijing, ChinaBeijing Key Laboratory of Early Gastrointestinal Cancer Medicine and Medical Devices, Beijing, ChinaDepartment of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, ChinaState Key Laboratory of Digestive Health, Beijing, ChinaNational Clinical Research Center for Digestive Disease, Beijing, ChinaBeijing Key Laboratory of Early Gastrointestinal Cancer Medicine and Medical Devices, Beijing, ChinaDepartment of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaDepartment of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, ChinaState Key Laboratory of Digestive Health, Beijing, ChinaNational Clinical Research Center for Digestive Disease, Beijing, ChinaBeijing Key Laboratory of Early Gastrointestinal Cancer Medicine and Medical Devices, Beijing, ChinaBackgroundCardiovascular-kidney-metabolic (CKM) syndrome is highly prevalent among adults and contributes substantially to cardiovascular morbidity and mortality. However, strategies for its early identification and prevention remain inadequately defined. The triglyceride-glucose (TyG) index, a surrogate marker of insulin resistance, may be associated with CKM progression, but its role across diverse populations and CKM progression patterns warrants further investigation.MethodsA total of 6,311 participants from the China Health and Retirement Longitudinal Study (CHARLS) were included. Associations between the TyG index and CKM progression were assessed using Cox proportional hazards and restricted cubic spline models. Subgroup analyses were conducted by age (<65 vs. ≥65 years), sex, and baseline CKM stage. CKM progression was further categorized to explore associations with specific metabolic outcomes.ResultsAmong 6,311 participants (mean age 57.8 years, 46.3% male), 31.3% experienced CKM progression over a median follow-up of 48 months. The TyG index was significantly associated with CKM progression in individuals aged ≥65 years, with a notable interaction between age and TyG (P for interaction <0.001). In participants with baseline CKM stage 0 or 1, higher TyG levels predicted greater CKM progression risk. A U-shaped relationship was observed in stage 0 (P = 0.018, P for non-linearity = 0.09), whereas a linear positive association was noted in stage 1 (P = 0.002, P for non-linearity = 0.008). Elevated TyG was primarily linked to subsequent hypertriglyceridemia in stage 0 (Q4 vs. Q1: HR 3.13, 95% CI 1.65–5.91, P < 0.001) and to future diabetes (Q4 vs. Q1: HR 2.85, 95% CI 1.56–5.22, P < 0.01), metabolic syndrome (Q4 vs. Q1: HR 1.62, 95% CI 1.10–2.37, P < 0.05), and hypertriglyceridemia (Q3 vs. Q1: HR 1.63, 95% CI 1.13–2.34, P < 0.01; Q4 vs. Q1: HR 2.21, 95% CI 1.58–3.08, P < 0.01) in stage 1.ConclusionElevated TyG index is a significant predictor of CKM progression, particularly via the development of metabolic abnormalities. Its predictive value varies across age groups and CKM stages. Early screening and intervention targeting TyG levels, especially in older adults and those with early-stage CKM, may be critical for halting CKM progression and reducing future cardiovascular risk.https://www.frontiersin.org/articles/10.3389/fcvm.2025.1612121/fullcardiovascular-kidney-metabolic syndrometriglyceride-glucose indexCKM progressionmetabolic disorderspopulation heterogeneity
spellingShingle Xingyu Zhou
Xingyu Zhou
Yisi Liu
Yisi Liu
Yisi Liu
Yisi Liu
Jiafei Peng
Jiafei Peng
Jiafei Peng
Jiafei Peng
Xianliang Zhou
Hongtao Wei
Hongtao Wei
Hongtao Wei
Hongtao Wei
The role of triglyceride-glucose index in the progression of cardiovascular-kidney-metabolic syndrome: findings from the China health and retirement longitudinal study
Frontiers in Cardiovascular Medicine
cardiovascular-kidney-metabolic syndrome
triglyceride-glucose index
CKM progression
metabolic disorders
population heterogeneity
title The role of triglyceride-glucose index in the progression of cardiovascular-kidney-metabolic syndrome: findings from the China health and retirement longitudinal study
title_full The role of triglyceride-glucose index in the progression of cardiovascular-kidney-metabolic syndrome: findings from the China health and retirement longitudinal study
title_fullStr The role of triglyceride-glucose index in the progression of cardiovascular-kidney-metabolic syndrome: findings from the China health and retirement longitudinal study
title_full_unstemmed The role of triglyceride-glucose index in the progression of cardiovascular-kidney-metabolic syndrome: findings from the China health and retirement longitudinal study
title_short The role of triglyceride-glucose index in the progression of cardiovascular-kidney-metabolic syndrome: findings from the China health and retirement longitudinal study
title_sort role of triglyceride glucose index in the progression of cardiovascular kidney metabolic syndrome findings from the china health and retirement longitudinal study
topic cardiovascular-kidney-metabolic syndrome
triglyceride-glucose index
CKM progression
metabolic disorders
population heterogeneity
url https://www.frontiersin.org/articles/10.3389/fcvm.2025.1612121/full
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