Related Experiment Video
Updated: Apr 3, 2026

Measuring Frailty in HIV-infected Individuals. Identification of Frail Patients is the First Step to Amelioration and Reversal of Frailty
Published on: July 24, 2013
Frailty Modifies the Predictive Capacity of the Triglyceride-Glucose Index for Coronary Heart Disease
Peng Gao1, Chunlei Li1, Ran Liu1
1Department of Cardiology, Beijing Luhe Hospital, Affiliated to Capital Medical University.
Insights
Frailty significantly impacts the triglyceride-glucose (TyG) index
Area of Science:
- Cardiology
- Gerontology
- Metabolic Syndrome
Background:
- Coronary heart disease (CHD) is a leading cause of mortality globally.
- Frail populations are particularly vulnerable to CHD.
- The triglyceride-glucose (TyG) index is a potential biomarker for cardiovascular risk.
Purpose of the Study:
- To investigate the influence of frailty on the predictive capacity of the TyG index for CHD.
- To assess the relationship between TyG index levels and CHD risk in both frail and non-frail individuals.
Main Methods:
- Analysis of data from 8,080 participants.
- Utilized the triglyceride-glucose (TyG) Index (high ≥ 8.697) and Frailty Index (frail ≥ 0.21).
- Employed logistic regression and restricted cubic spline analyses to examine TyG-CHD associations.
Main Results:
- In non-frail individuals, the TyG index independently predicted CHD with a near-linear relationship (OR = 1.89).
- In frail individuals, the TyG index lost its independent predictive power and exhibited a U-shaped relationship with CHD.
- Frailty significantly moderated the association between the TyG index and CHD (Pinteraction = 0.036).
Conclusions:
- Frailty substantially alters the predictive value of the TyG index for coronary heart disease.
- The TyG index is a reliable CHD predictor in non-frail individuals but less so in frail populations.
- Incorporating frailty assessment is crucial for accurate CHD risk stratification using the TyG index.
Abstract:
Coronary heart disease (CHD) significantly contributes to global mortality, particularly in frail populations. This study investigated how frailty affects the predictive capacity of the triglyceride-glucose (TyG) index for CHD.Analysis of 8,080 participants utilized the TyG Index (high ≥ 8.697) and Frailty Index (frail ≥ 0.21). Logistic regression and restricted cubic spline analyses assessed the relationships between TyG and CHD.In non-frail individuals, TyG independently predicted CHD (OR = 1.89, 95% CI: 1.42-2.51) with a near-linear relationship. In frail populations, TyG lost predictive independence and showed a U-shaped relationship. Frailty significantly moderated the TyG-CHD association (Pinteraction = 0.036).Frailty substantially influences the predictive value of TyG for CHD. While TyG reliably predicts CHD in non-frail individuals, its utility diminishes in frail populations, highlighting the importance of incorporating frailty in CHD risk assessments.
Related Concept Videos
Coronary Artery Disease I: Introduction
Atherosclerosis III: Management
Coronary Artery Disease IV: Preventive Measures
Blood Studies for Cardiovascular System III: Serum Lipid Profile
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
Coronary Artery Disease II: Pathophysiology
Coronary Artery Disease III: Clinical Manifestations

