Table 2.

Univariate and multivariate Cox proportional hazards analysis for AE ^a.

Variable	HR h	Univariate Analysis		B	p Value	Multivariate Analysis
		95% CI i				HR h	95% CI i		p Value
		Lower Level	Upper Level				Lower Level	Upper Level
Male gender	2.600	1.676	4.032	0.955	<0.001	2.525	1.441	4.425	0.001
Age (years)	1.045	1.021	1.070	0.044	<0.001	1.042	1.017	1.067	0.001
Hypertension	1.542	0.935	2.543	0.433	0.089
Hyperlipoproteinemia	1.086	0.698	1.634	0.066	0.762
Smoking	1.395	0.910	2.139	0.333	0.126
Diabetes	2.523	1.576	4.038	0.925	<0.001	1.891	1.171	3.055	0.009
Family history of CAD b	0.894	0.585	1.365	−0.113	0.603
Typical chest pain	2.495	1.449	4.296	0.914	0.001	0.838	0.420	1.670	0.615
SECHO c/SECG d	0.989	0.641	1.525	−0.011	0.959
Duration of the test (minutes)	0.945	0.875	1.021	−0.056	0.151
Achieved target heart rate	0.682	0.429	1.086	−0.382	0.107
Maximum achieved SBP e	1.007	0.997	1.017	0.007	0.157
Maximum achieved DBP f	1.000	0.982	1.019	0.000	0.976
Chronotropic index < 0.8	1.765	1.144	2.724	−0.568	0.010	1.493	0.955	2.332	0.079
Slow HRR g	3.084	1.638	5.808	1.126	<0.001	2.024	1.041	3.939	0.038

^a AEs—adverse events (death + myocardial infarction + CABG + PCI), ^b CAD—coronary artery disease, ^c SECHO—stress echocardiography, ^d SECG—stress electrocardiography, ^e SBP—systolic blood pressure, ^f DBP—diastolic blood pressure, ^g HRR—heart rate recovery, ^h HR—hazard ratio, ⁱ CI—confidence interval.