TABLE 3

Significant Predictors of Event-Free Survival Using Univariate Analysis

Variable	HR	95% CI	χ²	P
Clinical evaluation
Previous MI	2.99	1.56–5.95	12.10	0.0005
Laboratory examination
Creatinine level	3.34	1.78–5.72	12.11	0.0005
HDL cholesterol level	0.96	0.93–0.99	5.07	0.0244
ECG
Abnormal 12-lead findings	3.85	1.18–23.63	5.31	0.0212
Stress test not performed	2.23	1.22–4.14	6.82	0.0090
Maximal workload on effort	0.98	0.97–0.99	4.22	0.0399
Echocardiography
LVEF	0.95	0.93–0.97	24.04	<0.0001
LV end-diastolic diameter	1.07	1.03–1.11	12.85	0.0003
Wall motion score index	3.24	1.87–5.57	16.87	<0.0001
Gated SPECT
LV end-diastolic volume at rest	1.01	1.00–1.01	18.35	<0.0001
LV end-systolic volume at rest	1.01	1.01–1.02	20.40	<0.0001
LVEF at rest	0.95	0.93–0.97	24.28	<0.0001
Summed motion score at rest	1.03	1.01–1.05	8.45	0.0037
Summed thickening score at rest	1.06	1.03–1.08	16.18	<0.0001
SRS	1.16	1.10–1.21	27.11	<0.0001
LV end-diastolic volume after stress	1.01	1.00–1.01	19.49	<0.0001
LV end-systolic volume after stress	1.01	1.00–1.01	22.79	<0.0001
LVEF after stress	0.95	0.93–0.97	23.67	<0.0001
Summed motion score after stress	1.03	1.01–1.05	9.96	0.0016
Summed thickening score after stress	1.05	1.03–1.07	16.14	<0.0001
SSS	1.21	1.14–1.28	38.25	<0.0001
SDS	1.25	1.11–1.31	25.47	<0.0001
Coronary arteriography
LAD stenosis	1.83	1.01–3.44	3.90	0.0482
RCA stenosis	2.14	1.17–3.98	6.15	0.0131
Score of coronary stenoses (50% stenosis threshold)	1.08	1.02–1.14	7.34	0.0067
Score of coronary stenoses (70% stenosis threshold)	1.05	1.00–1.11	3.49	0.0616