Lipids & metabolic liver disease

Associations between triglyceride-glucose-related indices and all-cause and cardiovascular mortality among individuals with atrial fibrillation and metabolic syndrome: a cohort study of the UK biobank

Cardiovasc DiabetolPublished Population-based cohort study

Authors' conclusion

This study demonstrateed the prognostic value of TyG-related indices in individuals with AF and MetS. These indices may serve as practical surrogate markers for risk stratification and the prevention of adverse outcomes.

Study context

Population
Participants with both atrial fibrillation (AF) and metabolic syndrome, UK Biobank
Participants
2,535 participants
Exposure
Highest vs second quartile of triglyceride-glucose (TyG)-related indices
Outcome
All-cause and cardiovascular mortality
Follow-up
Mean 12.7 years (IQR: 11.8-15.2)
Methodological detailsUK Biobank, Cox proportional hazards models, restricted cubic spline analyses
  • UK Biobank
  • Cox proportional hazards models
  • Restricted cubic spline analyses

Main finding

As reported in the abstract

All-cause mortality · mean follow-up 12.7 years
Each group vs second quartileEstimate (95% CI)
Highest quartile
HR (TyG) 1.36(1.14–1.64)
Highest quartile
HR (TyG-BMI) 1.31(1.10–1.56)
Highest quartile
HR (TyG-WC) 1.41(1.18–1.68)
Highest quartile
HR (TyG-WHtR) 1.56 (95% CI 1.3--1.86)
All-cause deaths
956
Highest incidence of all-cause mortality in the fourth quartile of TyG (Kaplan-Meier, log-rank)
log-rank P < 0.001

Observational data: associations, not effects.

Further findings

Cardiovascular mortality · mean follow-up 12.7 years

Cardiovascular deaths
385
TyG: HR
1.47 (1.10-1.95) (95% CI)
TyG-WC: HR
1.41 (1.03-1.93) (CI)
TyG-WHtR: HR
1.35 (1.01-1.80) (CI)
  • Text names TyG, TyG-BMI and TyG-WHtR as significant, but the printed estimates are labelled TyG, TyG-WC and TyG-WHtR

Restricted cubic spline (RCS): nonlinear association between TyG and mortality and between TyG-BMI and all-cause mortality

Nonlinear associations (all)
P < 0.05

Sensitivity and subgroup analyses

Consistent with the primary analyses

Original publication

Associations between triglyceride-glucose-related indices and all-cause and cardiovascular mortality among individuals with atrial fibrillation and metabolic syndrome: a cohort study of the UK biobank. Cardiovasc Diabetol. Published 29 October 2025. doi:10.1186/s12933-025-02963-7

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