Table 5. Predictors of survival in univariate and multivariate Cox regression analysis for CF-LVAD recipients.

Variable	Univariate				Multivariate
	P	HR	95% CI		P	HR	95% CI
Blood urea nitrogen (mmol/L)	0.034	1.1	1.0–1.3		–	–	–
Renal failure	<0.001	14.2	4.1–49.1		<0.001	13.1	3.8-45.1

CF-LVAD, continuous flow left ventricular assist device.