Table 3. Cox regression multivariate analysis of 1-year mortality.

Variables in the model	Coefficient	SE Coef	HR	95%CI	p-value
ARF	1,983	0,624	7,43	2,1-24-7	0,001
Baseline CRP > 0.5 mg/dL	1,422	0,577	4,15	1,3-12,9	0,01
Blood transfusion ≥ 4 RBC units	1,543	0,649	4,68	1,3-16,7	0,02

SE Coef: standard error of the coefficient; HR: hazard ratio; CI: confidence interval; ARF: acute renal failure; CRP–C: reactive protein; RBC: red blood cell. Method of variable selection: stepwise forward.