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Objective <p>This study aimed to investigate the associations of the triglyceride-glucose (TyG)&#xa0;index with kidney function decline, cardiovascular disease (CVD) events, and all-cause mortality across different glucose tolerance statuses.</p> Methods <p>We analyzed 8,434 participants from the China Cardiometabolic Disease and Cancer Cohort (4C) Study. The primary outcomes were kidney function decline, CVD events, and all-cause mortality. Associations between the TyG index and outcomes were evaluated using binary logistic regression models.</p> Results <p>During a 5-year follow-up, 150 participants (1.80%) developed kidney function decline, 357 (4.30%) experienced CVD events, and 335 (4.00%) died from all causes. An elevated TyG index was associated with increased risks of kidney function decline, nonfatal CVD events, and all-cause mortality in the overall population and among participants with diabetes (quartile 4 [Q4] vs. quartile 1 [Q1]: hazard ratio [HR] [95% confidence interval, <i>P</i>-value] = 4.97 [1.41–31.71, <i>P</i> = 0.034], 4.63 [1.25–30.19, <i>P</i> = 0.047], and 4.54 [1.70–15.88, <i>P</i> = 0.007], respectively). These associations were not statistically significant in participants with normal glucose tolerance or prediabetes. Notably, an elevated TyG index was significantly associated with increased risk of fatal CVD events in the overall population and across all glucose tolerance subgroups, with the strongest association observed in participants with prediabetes rather than diabetes.</p> Conclusions <p>The TyG index is significantly associated with the risks of kidney function decline, CVD events, and all-cause mortality, and these associations differ by glucose tolerance status.</p>

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Associations of the Triglyceride-Glucose Index with Kidney Function Decline, Cardiovascular Disease Events, and All-Cause Mortality Across Different Glucose Tolerance Statuses

  • 期刊论文

  • 发表日期：

    2025年12月22日

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  • Bei-bei Mao,
  • Yu-xi Xiang,
  • Pei-qiong Luo,
  • Dan-pei Li,
  • Ya-ming Guo,
  • Xiao-yu Meng,
  • Ran-ran Kan,
  • Li-meng Pan,
  • Yi He,
  • Si-yi Wang,
  • Xue-feng Yu

摘要

Objective

This study aimed to investigate the associations of the triglyceride-glucose (TyG) index with kidney function decline, cardiovascular disease (CVD) events, and all-cause mortality across different glucose tolerance statuses.

Methods

We analyzed 8,434 participants from the China Cardiometabolic Disease and Cancer Cohort (4C) Study. The primary outcomes were kidney function decline, CVD events, and all-cause mortality. Associations between the TyG index and outcomes were evaluated using binary logistic regression models.

Results

During a 5-year follow-up, 150 participants (1.80%) developed kidney function decline, 357 (4.30%) experienced CVD events, and 335 (4.00%) died from all causes. An elevated TyG index was associated with increased risks of kidney function decline, nonfatal CVD events, and all-cause mortality in the overall population and among participants with diabetes (quartile 4 [Q4] vs. quartile 1 [Q1]: hazard ratio [HR] [95% confidence interval, P-value] = 4.97 [1.41–31.71, P = 0.034], 4.63 [1.25–30.19, P = 0.047], and 4.54 [1.70–15.88, P = 0.007], respectively). These associations were not statistically significant in participants with normal glucose tolerance or prediabetes. Notably, an elevated TyG index was significantly associated with increased risk of fatal CVD events in the overall population and across all glucose tolerance subgroups, with the strongest association observed in participants with prediabetes rather than diabetes.

Conclusions

The TyG index is significantly associated with the risks of kidney function decline, CVD events, and all-cause mortality, and these associations differ by glucose tolerance status.