Table 3.

Univariate Cox and multivariate Cox regression analyses in derivation cohort.

Characteristics	Univariate analysis		Multivariate analysis
	Hazard ratio (95% CI)	p-Value	Hazard ratio (95% CI)	p-Value
Gender (male vs. female)	1.262 (0.988–1.610)	0.062	–	–
Age (>60 vs. ≤60)	4.668 (3.598–6.056)	<0.001	3.916 (3.002–5.109)	<0.001
Race (Black or African American vs. Asian)	1.470 (0.414–5.214)	0.551	–	–
Risk score (high vs. low)	2.392 (1.861–3.075)	<0.001	1.726 (1.302–2.287)	<0.001