Characteristics and outcomes of culture-negative versus culture-positive severe sepsis

Table 5 Outcomes.

	Culture-negative patients (n= 415)	Culture-positive patients (n= 586)	P value
Hospital mortality	149 (35.9)	258 (44.0)	0.01
ICU mortality	139 (33.5)	232 (39.6)	0.049
Duration of mechanical ventilation, days^a	3.0 (1.0-7.0)	4.0 (1.0-8.0)	0.35
Duration of ICU stay, days	4.0 (2.0-8.0)	4.0 (2.0-9.0)	0.46
Duration of hospital stay, days	12.0 (7.0-21.0)	15.0 (7.0-27.0)	0.02

^aA total of 326 culture-negative patients and 448 culture-positive patients were mechanically ventilated during the ICU stay. ICU, intensive care unit.

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