Table 3.

Characteristics of patients with mechanical ventilator-associated pneumonia

	Clinical diagnosis (CPIS) (N = 38)	NHSN/CDC (2013) (N = 14)
Age (years)	54.2 ± 19.1	56.7 ± 20.1
Gender
Male	24 (63.2)	7 (50)
Female	14 (36.8)	7 (50)
APACHE II score	21.4 ± 8.0	20.6 ± 8.9
ICU time (days)	26.9 ± 16.6	30.3 ± 21.5
MV time (days)	21.5 ± 15.2	21.8 ± 15.9

CPIS - clinical pulmonary infection score; NHSN/CDC - National Healthcare Safety Network/Center for Disease Control and Prevention; SD - standard deviation; APACHE II - Acute Physiology and Chronic Health Evaluation II; ICU - intensive care unit; MV - mechanical ventilation. The results are expressed as number (%) or as the mean ± standard deviation.