Each one-unit elevation of the TyG index significantly increased the odds of three-vessel coronary artery disease compared to angiogram-negative patients (OR 1.864; 95% CI 1.402-2.477; p<0.001).
Observational (n=2,346)
Is an elevated triglyceride-glucose (TyG) index associated with the presence and severity of coronary artery disease?
The TyG index is significantly associated with the presence and severity of multivessel coronary artery disease, suggesting its potential utility as a risk stratification marker.
Effect estimate: OR 1.864 (95% CI 1.402-2.477)
p-value: p=< 0.001
BACKGROUND: Despite previous studies, the relationship between the triglyceride-glucose (TyG) index and coronary artery disease (CAD) is still undetermined. So we aimed to investigate the association between the TyG index and CAD. METHOD: A total of 2346 subjects were enrolled in the study and were categorised into 5: those with no CAD, angiogram negative (Ang-) patients, those with single-vessel disease (SVD), or two-vessel disease (2VD) or three-vessel disease (3VD). Demographic characteristics, disease history and biochemical investigations were recorded. TyG index was calculated as Ln fasting TG (mg/dL) × fasting glucose (mg/dL)/2. RESULTS: Adjusted regression models demonstrated that the odds of 3VD (OR, 5.847; 95% CI, 4.391-7.784), 2VD (OR, 4.943; 95% CI, 3.597-6.791), SVD (OR, 4.722; 95% CI 3.448-6.647) and a negative coronary angiogram (OR, 3.137; 95% CI, 2.431-4.049), increased significantly per each unit elevation of the TyG index, compared to the healthy participants. Also, the odds for being 3VD (1.864, 95%CI 1.402-2.477, p-value < 0.001), 2VD (1.575, 95%CI 1.143-2.171, p-value = 0.005) and SVD (1.505, 95%CI 1.097-2.065, p-value = 0.011) were increased significantly by one-unit elevation of TyG index, compared to Ang- group. CONCLUSION: Our study demonstrates a significant association between elevated TyG index and the presence and severity of CAD. Higher TyG index values were consistently linked to an increased likelihood of multivessel CAD, especially in diabetic patients. These findings suggest that the TyG index could serve as a valuable marker for assessing CAD risk and stratification.
Soflaei et al. (Sat,) conducted a observational in Coronary artery disease (n=2,346). Triglyceride-glucose (TyG) index vs. Healthy participants or angiogram negative patients was evaluated on Three-vessel disease (3VD) vs angiogram negative (Ang-) per unit elevation of TyG index (OR 1.864, 95% CI 1.402-2.477, p=< 0.001). Each one-unit elevation of the TyG index significantly increased the odds of three-vessel coronary artery disease compared to angiogram-negative patients (OR 1.864; 95% CI 1.402-2.477; p<0.001).