Table 2. Patient characteristics during ICU stay.

Characteristics	Survivors (n=63)	Nonsurvivors (n=30)	P value
At VAP diagnosis
Early-onset VAP	19 [30]	8 [27]	0.729
Duration of mechanical ventilation before VAP occurrence	9 [5, 15]	9 [5, 18]	0.522
Appropriate antibiotic treatment	62 [98]	26 [87]	0.019*
Duration of prior antimicrobial treatment, d	7 [3, 13]	8 [6, 11]
SOFA score	5 [4, 9]	8 [6, 13]	0.005
Respiratory system	2 [2, 3]	3 [3, 4]	0.045
Nervous system	1 [1, 3]	2 [1, 3]	0.071
Cardiovascular system	0 [0, 1]	3 [0, 4]	0.009
Liver	0 [0, 0]	0 [0, 2]	0.085
Coagulation	0 [0, 1]	0 [0, 2]	0.025
Kidneys	0 [0, 1]	0 [0, 2]	0.038
CPIS	9 [7, 10]	9 [8, 11]	0.117
Percentage of time spent with hyperoxemia, mean ± SD	40±30	40±34	0.647
During ICU stay
Total duration of antimicrobial treatment	18 [11, 28]	17 [14, 26]	0.856
Duration of mechanical ventilation	24 [13, 48]	26 [16, 43]	0.851
Length of ICU stay	29 [20, 61]	25 [15, 47]	0.291
Percentage of time spent with hyperoxemia during the 7 days preceding VAP, mean ± SD	48±28	45±23	0.731
Percentage of time spent with hyperoxemia during the 7 days subsequent to VAP, mean ± SD	48±24	40±24	0.167

Data are presented as n [%] or median [interquartile range], unless otherwise indicated. *, OR (95% CI): 0.10 (0.01–0.98). VAP, ventilator-associated pneumonia; SOFA, sequential organ failure assessment; CPIS, clinical pulmonary infection score; ICU, intensive care unit.