Risk factors for broncho-pulmonary nosocomial infection in medical intensive care unit

Table 1

Patient characteristics	General population	BPNI
	(n = 3681)	(n = 517)
Age (years)	58	62
Sex ratio (M/F)	1.84	2.54
Mortality (%)	35.9	53.5
Mechanical ventilation (%)	85.1	97
ICU stay (days)	12.2	32.6
Length of mechanical ventilation (days)	10.5	26.5
SAPS II	37.1	36.5 NS
Total Omega	245	347
Surgical patients (%)	15.3	20.3

Univariate analysis identified the following risk factors (P < 0.05): At admission: Male gender, age > 60, chronic lung disease antecedent, previous corticosteroid treatment, antibiotics (ATB) in the previous 2 weeks, surgery or trauma < 24 hours, secondary hospitalization, broncho-pulmonary infection, sedatives use; respiratory, renal or digestive distress. During hospitalization: Mechanical ventilation, total omega score; ATB, omeprazole, ranitidine or sucralfate use.

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