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Higher Triglyceride-Glucose index is associated with increased risk of albuminuria in chronic kidney diseaseHigher Triglyceride-Glucose Index Linked to Kidney Damage Risk

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Key Takeaway
Note that higher TyG index is associated with increased albuminuria risk and may serve as a marker for renal risk.

This meta-analysis evaluates the relationship between the Triglyceride-glucose (TyG) index and albuminuria in patients with potential renal risk across cross-sectional and cohort studies involving 59,148 participants. The analysis indicates that a higher TyG index is significantly associated with albuminuria in cross-sectional data (OR = 2.37; 95% CI: 1.26–4.43). When outliers were excluded, the association remained significant (OR = 1.61; 95% CI: 1.48–1.75).

In cohort studies, a higher TyG index was associated with an increased risk of new-onset albuminuria (HR = 1.19; 95% CI: 1.03–1.37). The authors note that while the TyG index may serve as a simple metabolic marker for early renal risk stratification, there is currently limited longitudinal evidence regarding new-onset albuminuria.

Clinical application of the TyG index as a screening tool is tempered by the need for more large-scale prospective studies to clarify temporal relationships and potential causality. The findings suggest it may be useful for identifying patients at risk, but it is not a definitive diagnostic for kidney disease.

How this fits prior evidence

This meta-analysis addresses a gap in metabolic markers for renal risk. While prior evidence has identified specific medications like Canagliflozin to mitigate cardiovascular risk and Semaglutide to improve hypertension control in CKD patients, this study focuses on the TyG index as a potential screening tool. It complements existing knowledge by providing an objective metric for early risk stratification in patients with chronic kidney disease.

Researchers analyzed data from over 59,000 people to see how the triglyceride-glucose (TyG) index relates to kidney health. This specific index is a way to measure metabolic health using blood markers. The study looked for signs of albuminuria, which is a condition where protein leaks into the urine and can indicate early kidney damage.

The results showed that people with a higher TyG index were more likely to have existing albuminuria. Additionally, the data suggested that a higher TyG index was linked to an increased risk of developing new-onset albuminuria over time. These findings suggest that the TyG index could be a simple way for doctors to identify patients who might be at risk for kidney problems.

It is important to note that this study shows a link, not a direct cause. Because the evidence for new cases of kidney issues is still limited, more large-scale studies are needed to confirm exactly how these markers work together. This finding should be seen as a potential tool for early screening rather than a definitive diagnosis.

What this means for you:
A higher triglyceride-glucose index may help identify people at risk for early signs of kidney damage.

Common questions

What is the TyG index and why does it matter?

The triglyceride-glucose (TyG) index is a metabolic marker. This study found that a higher TyG index is significantly associated with albuminuria, which is a sign of kidney stress. It may help doctors identify people at risk for kidney issues early on using simple blood markers.

Does a high TyG index mean I have kidney disease?

A high TyG index shows a link to albuminuria, but it is not a definitive diagnosis of kidney disease. The study notes that more large-scale research is needed to understand the exact relationship between these markers and kidney health.

Who does this finding help?

This finding may help patients with potential renal risk. By using the TyG index as a screening tool, healthcare providers might be able to identify individuals who need closer monitoring for signs of kidney damage like albuminuria.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedJul 2026
View Original Abstract ↓
BackgroundAlbuminuria is an early marker of glomerular microvascular injury and can predict the progression of chronic kidney disease (CKD). The triglyceride-glucose (TyG) index, a convenient surrogate indicator of insulin resistance, has been associated with renal injury, but its relationship with albuminuria remains unclear. This study aims to systematically evaluate the relationship between the TyG index and the risk of albuminuria.MethodsWe searched PubMed, Embase, Web of Science, and the Cochrane Library for relevant studies published up to January 1, 2026. Observational studies reporting the association between the TyG index and albuminuria, and providing effect estimates with 95% confidence intervals (CIs) were included. Study quality was assessed using the Newcastle–Ottawa Scale (NOS) and the Agency for Healthcare Research and Quality (AHRQ) tool. Heterogeneity was assessed using the I2 statistic, and subgroup analyses, sensitivity analyses, and publication bias assessments were conducted.ResultsA total of 14 studies (13 cross-sectional studies and 1 cohort study) were included, with a combined sample size of 59,148 participants. The cross-sectional pooled analysis showed that a higher TyG index was significantly associated with albuminuria (OR = 2.37, 95% CI: 1.26–4.43; I2 = 85.5%). After excluding one outlier study reporting an extreme effect size, the association remained statistically significant (OR = 1.61, 95% CI: 1.48–1.75), with heterogeneity decreasing to 53.5%. Subgroup analyses by population type, region, adjustment for renal function indicators, sample size, and BMI adjustment revealed consistent positive correlations without significant intergroup differences. Leave-one-out analyses demonstrated robust results. The results of the publication bias risk assessment were primarily driven by an outlier study. After excluding that study, no significant small-study effects were observed. The sole cohort study suggested an increased risk of new-onset albuminuria with higher TyG index (HR = 1.19, 95% CI 1.03–1.37).ConclusionAvailable evidence indicates that elevated TyG index correlates with increased risk of albuminuria across different populations. Limited longitudinal evidence also supports an association between TyG and heightened risk of new-onset albuminuria. The TyG index may serve as a simple metabolic marker for early renal risk stratification, though further large-scale prospective studies are needed to clarify temporal relationships and potential causality.Systematic review registrationhttps://www.crd.york.ac.uk/PROSPERO/view/CRD420261290210, identifier CRD420261290210.
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