Table 2.

Risk factor analysis for in-hospital death in high risk patients (EA ≥ 0.54 at T0) and in low risk patients (EA < 0.54 at T0).

	Univariate analysis		Multivariate analysis
	OR (95% CI)	p value	OR (95% CI)	p value
In high risk patients (EA at T0 ≥ 0.54)
PMX-HP treatment	0.53 (0.13–2.20)	0.18	0.04 (0.01–0.71)	0.03
Age (years)	1.01 (0.94–1.08)	0.76
APACHE II at admission	1.01 (0.93–1.09)	0.83
SOFA score at T0	1.24 (1.03–1.49)	0.02	1.56 (1.13–2.16)	0.007
Duration of surgery (min)	1.01 (0.99–1.01)	0.47
In low risk patients (EA at T0 < 0.54)
PMX-HP treatment	4.00 (0.45–35.79)	0.22
Age (years)	1.03 (0.94–1.13)	0.54
APACHE II at admission	1.16 (0.99–1.36)	0.055
SOFA score at T0	1.28 (1.00–1.64)	0.047	1.28 (1.00–1.64)	0.047
Duration of surgery (min)	0.98 (0.96–1.00)	0.078

APACHE Acute physiology and Chronic Health Evaluation, CI confidence interval, EA Endotoxin activity, OR Odd ratio, PMX-HP Polymyxin B-hemoperfusion, SOFA Sequential Organ Failure Assessment.

Significant values are in [italics].