Lipids & metabolic liver disease
Comprehensive evaluation of the triglyceride glucose index (triglyceride-glucose (TyG)) and body roundness index (BRI) on cardiovascular disease risk prediction: a 9-year prospective cohort study in Chinese middle-aged and older adults
Authors' conclusion
In conclusion, our study highlights the critical role of BRI as a mediator in the relationship between TyG and CVD risk. The findings indicate that both baseline and follow-up BRI significantly contribute to the pathway linking TyG to CVD, suggesting that individuals with higher BRI are at an increased risk. The antagonistic interaction underscores the complexity of metabolic risk factors in CVD development and emphasizes the need for a multifaceted approach in risk assessment and management. Future research should focus on elucidating the biological mechanisms underlying this interaction and exploring potential interventions that target body composition and metabolic health to mitigate CVD risk in high-risk populations.
Study context
- Population
- Chinese middle-aged and older adults without pre-existing cardiovascular disease (CVD), China Health and Retirement Longitudinal Study (CHARLS) 2011–2020
- Participants
- 7,853 participants
- Exposure
- TyG and BRI in relation to CVD risk
- Outcome
- Incident CVD
- Follow-up
- Median 9.0 years
Methodological detailsChina Health and Retirement Longitudinal Study (CHARLS) 2011–2020
- China Health and Retirement Longitudinal Study (CHARLS) 2011–2020
Main finding
As reported in the abstract
- Developed CVD
- 1,922 (24.48%)
- Baseline BRI mediated share of TyG–CVD association
- 40.14%
- Indirect effect HR via baseline BRI
- 1.053 (95% CI 1.035-1.073)
- Follow-up BRI mediated share of TyG–CVD association
- 51.46%
- Indirect effect HR via follow-up BRI
- 1.046 (95% CI 1.028-1.068)
- Increase in follow-up TyG per SD increase in baseline BRI (SD)
- 0.12
Observational data: associations, not effects.
Further findings
Weighted quantile sum (WQS) analysis: most substantial contributor
- Waist circumference weight
- 0.523
Composite indexes with hs-CRP
- CVD risk with TyG + BRI, HR
- 1.773 (95% CI 1.499-2.097)
- Discriminatory ability for CVD, AUC
- < 0.65
- Joint elevation of TyG-BRI and TyG + BRI with hs-CRP further stratified CVD risk; elevation of all markers had highest risk
Original publication
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