Short and long term outcomes of 200 patients supported by continuous-flow left ventricular assist devices

Table 5 Multiple cox proportional hazard models

Variable	HR 95%CI	P value	Backwards stepwise model
Albumin	0.64 (0.27, 1.52)	0.310
Length of stay	0.85 (0.62, 1.17)	0.319
CPB time	1.05 (0.98, 1.14)	0.175
CRI	1.13 (0.44, 2.91)	0.804
PVD	0.95 (0.30, 3.03)	0.931
Vented	0.93 (0.17, 4.97)	0.929
Creatinine	0.77 (0.37, 1.63)	0.495
PreVAD AST	1.03 (1.00, 1.07)	0.072	1.03 (1.01, 1.05) 0.01
PreVAD ALT	1.02 (1.00, 1.05)	0.064	1.02 (1.01, 1.04) 0.02
Blood transfusion	1.19 (0.45, 3.14)	0.732
ICU stay	0.80 (0.52, 1.24)	0.320
Reexploration	1.70 (0.50, 5.79)	0.794
VDRF	4.92 (1.62, 14.93)	0.005	3.05 (1.41, 6.59) 0.005
Tracheostomy	5.53 (0.65, 46.78)	0.116	4.54 (1.35, 15.32) 0.015
RV failure	0.45 (0.09, 2.26)	0.330
RVAD	8.90 (1.30, 61.06)	0.066	3.64 (1.59, 8.36) 0.002
Age	1.02 (0.95, 1.12 )	0.176
Gender	0.75 (0.66, 1.56 )	0.321
Resternotomy	1.31 (0.83, 4.55)	0.673
Etiology of heart failure	1.23 (0.59, 4.08)	0.512

CPB: Cardiopulmonary bypass; CRI: Chronic renal insufficiency; PVD: Peripheral vascular disease; AST: Aspartate transaminase; ALT: Alanine aminotransferase; ICU: Intensive care unit; VDRF: Ventilator dependent respiratory failure; RV: Right ventricular; RVAD: Right ventricular assist device.