Table 2.

Multivariate analysis of factors associated with 30-day mortality Only variables of the final model are presented.

	30-day mortality
Variable	Odds ratio (95% confidence interval)	P
Metallo-β-lactamase	1.77 (0.72–4.36)	0.21
Charlson	1.21 (1.04–1.41)	0.02
Severe sepsis or septic shock	3.17 (1.30–7.72)	0.01
Ventilator-associated pneumonia	2.92 (1.18–7.21)	0.02
Appropriate antimicrobial therapy	0.24 (0.10–0.61)	<0.01