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.

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