The impact of the triglyceride-glucose index on the deterioration of kidney function in patients with cardiovascular-kidney-metabolic syndrome: insight from a large cohort study in China

Background The triglyceride-glucose (TyG) index has emerged as a credible surrogate indicator of insulin resistance in recent years. This study aimed to investigate the relationship between the TyG index and the deterioration of kidney function in patients with cardiovascular-kidney-metabolic (CKM)...

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Main Authors: Zhi Shang, Song-Tao Feng, Hui Qian, Zhen-Ling Deng, Yue Wang, Yue-Ming Gao
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Renal Failure
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Online Access:https://www.tandfonline.com/doi/10.1080/0886022X.2024.2446656
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author Zhi Shang
Song-Tao Feng
Hui Qian
Zhen-Ling Deng
Yue Wang
Yue-Ming Gao
author_facet Zhi Shang
Song-Tao Feng
Hui Qian
Zhen-Ling Deng
Yue Wang
Yue-Ming Gao
author_sort Zhi Shang
collection DOAJ
description Background The triglyceride-glucose (TyG) index has emerged as a credible surrogate indicator of insulin resistance in recent years. This study aimed to investigate the relationship between the TyG index and the deterioration of kidney function in patients with cardiovascular-kidney-metabolic (CKM) syndrome.Methods In this retrospective cohort study from China, 27,407 hospitalized patients with stage 1–4 CKM syndrome were consecutively included. The participants were categorized into four groups according to TyG index quartiles. The study outcome was the deterioration of kidney function, defined as a decrease in estimated glomerular filtration rate (eGFR) ≥ 40% from baseline. Restricted cubic spline (RCS) curves and multivariate Cox analysis were used for analysis.Results 3,248 outcome events were recorded during a mean follow-up period of 34 months. The RCS plot displayed a U-shaped curve between the baseline TyG index and the deterioration of kidney function (P for non-linear < 0.001). The baseline TyG index with the lowest hazard ratio (HR) of eGFR decline ranges from 8.65 to 9.15, with an inflection point at 8.88. After fully adjusting for covariates, HRs and 95% confidence intervals (CIs) from the lowest to highest TyG index quartile were 1.00 (reference), 0.82 (0.74, 0.91), 0.78 (0.70, 0.86), and 0.93 (0.83, 1.03), respectively. According to the Kaplan-Meier survival curve, the risk of deterioration of kidney function was elevated in the lowest and highest TyG index quartiles (log-rank test, p < 0.0001).Conclusions In individuals with CKM syndrome, a non-linear U-shaped relationship existed between the baseline TyG index and the deterioration of kidney function.
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series Renal Failure
spelling doaj-art-605442c470c84b5fa2be1121a2a634de2025-01-06T07:14:00ZengTaylor & Francis GroupRenal Failure0886-022X1525-60492025-12-0147110.1080/0886022X.2024.2446656The impact of the triglyceride-glucose index on the deterioration of kidney function in patients with cardiovascular-kidney-metabolic syndrome: insight from a large cohort study in ChinaZhi Shang0Song-Tao Feng1Hui Qian2Zhen-Ling Deng3Yue Wang4Yue-Ming Gao5Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, ChinaDepartment of Nephrology, Jiangsu University Affiliated People’s Hospital, Jiangsu, ChinaJiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Laboratory Medicine, School of Medicine, Jiangsu University, Jiangsu, ChinaDepartment of Nephrology, Peking University Third Hospital, Beijing, ChinaDepartment of Nephrology, Peking University Third Hospital, Beijing, ChinaDepartment of Nephrology, Peking University Third Hospital, Beijing, ChinaBackground The triglyceride-glucose (TyG) index has emerged as a credible surrogate indicator of insulin resistance in recent years. This study aimed to investigate the relationship between the TyG index and the deterioration of kidney function in patients with cardiovascular-kidney-metabolic (CKM) syndrome.Methods In this retrospective cohort study from China, 27,407 hospitalized patients with stage 1–4 CKM syndrome were consecutively included. The participants were categorized into four groups according to TyG index quartiles. The study outcome was the deterioration of kidney function, defined as a decrease in estimated glomerular filtration rate (eGFR) ≥ 40% from baseline. Restricted cubic spline (RCS) curves and multivariate Cox analysis were used for analysis.Results 3,248 outcome events were recorded during a mean follow-up period of 34 months. The RCS plot displayed a U-shaped curve between the baseline TyG index and the deterioration of kidney function (P for non-linear < 0.001). The baseline TyG index with the lowest hazard ratio (HR) of eGFR decline ranges from 8.65 to 9.15, with an inflection point at 8.88. After fully adjusting for covariates, HRs and 95% confidence intervals (CIs) from the lowest to highest TyG index quartile were 1.00 (reference), 0.82 (0.74, 0.91), 0.78 (0.70, 0.86), and 0.93 (0.83, 1.03), respectively. According to the Kaplan-Meier survival curve, the risk of deterioration of kidney function was elevated in the lowest and highest TyG index quartiles (log-rank test, p < 0.0001).Conclusions In individuals with CKM syndrome, a non-linear U-shaped relationship existed between the baseline TyG index and the deterioration of kidney function.https://www.tandfonline.com/doi/10.1080/0886022X.2024.2446656Cardiovascular-kidney-metabolic syndrometriglyceride-glucose indexkidney functioninsulin resistance
spellingShingle Zhi Shang
Song-Tao Feng
Hui Qian
Zhen-Ling Deng
Yue Wang
Yue-Ming Gao
The impact of the triglyceride-glucose index on the deterioration of kidney function in patients with cardiovascular-kidney-metabolic syndrome: insight from a large cohort study in China
Renal Failure
Cardiovascular-kidney-metabolic syndrome
triglyceride-glucose index
kidney function
insulin resistance
title The impact of the triglyceride-glucose index on the deterioration of kidney function in patients with cardiovascular-kidney-metabolic syndrome: insight from a large cohort study in China
title_full The impact of the triglyceride-glucose index on the deterioration of kidney function in patients with cardiovascular-kidney-metabolic syndrome: insight from a large cohort study in China
title_fullStr The impact of the triglyceride-glucose index on the deterioration of kidney function in patients with cardiovascular-kidney-metabolic syndrome: insight from a large cohort study in China
title_full_unstemmed The impact of the triglyceride-glucose index on the deterioration of kidney function in patients with cardiovascular-kidney-metabolic syndrome: insight from a large cohort study in China
title_short The impact of the triglyceride-glucose index on the deterioration of kidney function in patients with cardiovascular-kidney-metabolic syndrome: insight from a large cohort study in China
title_sort impact of the triglyceride glucose index on the deterioration of kidney function in patients with cardiovascular kidney metabolic syndrome insight from a large cohort study in china
topic Cardiovascular-kidney-metabolic syndrome
triglyceride-glucose index
kidney function
insulin resistance
url https://www.tandfonline.com/doi/10.1080/0886022X.2024.2446656
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