Table 2. Risk factors for death: Cox proportional-hazards regression model.

Characteristic	Univariate HR (IC 95%)	P	Multivariate* HR (IC 95%)	P
APACHE II Scorea	6.94 (2.34–20.58)	<0.0001	12.13 (1.89–77.5)	0.008
Liver disease	11.25 (1.32–95.37)	0.026	186.11 (7.61–4550.20)	0.001
Invasive mechanical ventilation	2.40 (0.91–6.29)	0.074
CVC removal b	0.26 (0.08–0.81)	0.020
Prior use of steroid	0.42 (0.16–1.08)	0.073

^a≥16 points; ^b CVC, Central venous catheter.