Table 7.

Multivariate regression model for all-cause mortality

Variable	Hazard ratio	95% CI	p-value
Sodium (per 1 mEq/L)	0.89	0.82–0.96	0.004
B-type natriuretic peptide (per 100 pg/mL)	1.08	1.02–1.14	0.009
Age at implant (per year)	1.04	1.00–1.08	0.03
Gender male	1.45	0.49–4.32	0.50
LVAD indication (bridge-to-transplant)	0.71	0.31–1.62	0.41
Loop diuretic use	0.62	0.31–1.23	0.17
Preoperative body-mass index	0.97	0.91–1.02	0.23
Diabetes mellitus	0.89	049–1.63	0.71
Chronic obstructive lung disease	0.64	0.31–1.33	0.23
Peripheral vascular disease	3.50	1.46–8.38	0.005
Estimated GFR	1.01	0.99–1.02	0.44

Multivariate Cox regression model adjusting for covariates shown demonstrated lower serum sodium was significantly associated with all-cause mortality.

GFR, glomerular filtration rate; LVAD, left ventricular assist device.