Association of triglyceride–glucose index and traditional risk factors with cardiovascular disease among non-diabetic population: a 10-year prospective cohort study

Table 7 The incremental predictive value of the TyG index for CVD, CHD and stroke

CVD	C-statistic (95% CI)	p-value	Continuous NRI (95% CI)	p-value	IDI (95% CI)	p-value
Model 3 without TyG index	0.730 (0.706–0.754)	Ref		Ref		Ref
Model 3 with TyG index	0.731 (0.708–0.755)	0.016	0.1587 (0.0518—0.2655)	0.004	9e-04 (–3e–04–0.0021)	0.133
CHD
Model 3 without TyG index	0.731 (0.700–0.762)	Ref		Ref		Ref
Model 3 with TyG index	0.733 (0.703–0.764)	0.017	0.1637 (0.0304—0.2971)	0.016	0.0012 (–1e–04—0.0025)	0.073
Stroke
Model 3 without TyG index	0.758 (0.721–0.794)	Ref		Ref		Ref
Model 3 with TyG index	0.759 (0.723–0.795)	0.180	0.1818 (0.0203—0.3432)	0.027	2e-04 (–6e–04—0.001)	0.604

CVD Cardiovascular disease; CHD Coronary heart disease; TyG index triglyceride–glucose index; CI confidence interval; NRI Net reclassification improvement; IDI Integrated discrimination improvement, Ref. reference
p values in bold are < 0.05

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