Impact of nosocomial pneumonia on the outcome of mechanically-ventilated patients

Table 2 Variables significantly associated with mortality (univariate analysis)

Factor	Survivors	Non-survivors	P	OR (95% CI)
	(n = 247)	(n = 67)
Non-urgent postoperative patients	43	4	0.01	2.97 (1.10-7.93)
SAPS > 9	165	60	0.001	3.68 (1.68-8.06)
ARDS	36	34	0.001	6.03 (3.33-10.95)
APACHE II > 20 on admission	41	28	0.001	3.50 (1.94-6.30)
MOF	45	48	0.001	10.72 (5.80-19.80)
Bacteremia	36	22	0.001	2.86 (1.54-5.32)
Coma	32	17	0.01	2.23 (1.148-4.32)
Shock	36	17	0.05	1.99 (1.03-3.83)
NP	54	28	0.001	2.48 (1.40-4.39)

ARDS = adult respiratory distress syndrome; CI = confidence interval; MOF = multiple organ failure; NP = nosocomial pneumonia; OR = odds ratio.