Table 6. Subgroup analysis of Group 1 for the rates of the cardiovascular composite events at 1 year .

Category	Cardiovascular events at 1 year (n, %)	p-value
Symptom onset to ED time (minutes)	≥ 120 minutes: (20, 17.4%)	0.42
	< 120 minutes: (17, 24.3%)
TIMI flow at baseline	TIMI 0/1: (30, 19.9%)	0.92
	TIMI 2/3: (6, 22.2%)
Killip classification	Killp I: (19, 15.7%)	0.02*
	Killip II, III, or IV: (17, 29.3%)
Transfer	Yes: (16, 16.5%)	0.41
	No: (21, 22.8%)
Culprit lesion	LM/LAD: (20, 17.4%)	0.30
	Non-LM/LAD: (17, 23.0%)
Initial CK level (U/L)	≥ 800: (9, 18.4%)	0.85
	< 800: (28, 20.6%)
Initial CK-MB level (U/L)	≥ 60: (7, 13.2%)	0.32
	< 60: (29, 21.8%)

Events were defined as all-cause mortality, nonfatal myocardial infarction (MI), target vessel revascularization (TVR), bypass surgery, and stroke. CK, creatinine kinase; CK-MB, creatinine kinase, myocardial form; ED, emergency department; LAD, left anterior descending artery; TIMI, thrombolysis in myocardial infarction.