Value of GRACE and SYNTAX scores for predicting the prognosis of patients with non-ST elevation acute coronary syndrome

Table 3 Major adverse cardiovascular events rate in patients with different GRACE risk scores receiving different treatments, n (%)

GRACE risk scores (points)	n	Medication group		Stent group		CABG group		Overall MACE rate	Hc value	P value
		n	MACE rate	n	MACE rate	n	MACE rate
Low risk group (0-88)	95	65	4 (6.2)	25	7 (28.0)	5	2 (40.0)	13 (13.7)	5.231	0.041
Intermediate risk group (89-117)	151	71	22 (31.0)	66	20 (30.3)	14	6 (42.9)	48 (31.8)	2.742	0.086
High risk group (≥ 118)	140	59	10 (16.9)	65	30 (46.2)	16	7 (43.8)	47 (33.6)	5.381	0.040
Total	386	195	36 (18.5)	156	57 (36.5)	35	15 (42.9)	108 (28.0)	4.412	0.044

CABG: Coronary artery bypass grafting; Hc value: The test statistic for the Kruskal-Wallis test; MACE: Major adverse cardiovascular events.