Adjustment of the GRACE score by the triglyceride glucose index improves the prediction of clinical outcomes in patients with acute coronary syndrome undergoing percutaneous coronary intervention

Table 4 Akaike’s information criteria and likelihood ratio test to determine the best fitting model for predicting MACEs

Akaike’s information criteria					Likelihood ratio test
Model	AICc	δAICc	AICcWt	Cum.wt	Model	χ²	df	P value
GRACE score	1098.73	10.35	0.01	1.00	GRACE score	Ref.	Ref.	Ref.
GRACE score + TyG index	1088.38	0.00	0.99	0.99	GRACE score + TyG index	12.37	1	<0.001
GRACE score + FBG	1100.47	12.09	0.00	1.00	GRACE score + FBG	0.27	1	0.604

MACEs indicates major adverse cardiac events, defined as a composite of all-cause death and nonfatal myocardial infarction. GRACE score, Global Registry of Acute Coronary Events score; TyG index, the triglyceride-glucose index; FBG, fasting blood glucose; AICc, corrected Akaike’s information criterion; δAICc, delta-AICc; AICcWt, AICc weights; Cum.wt, the cumulative weights of AIC

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