Table 2.

Clinical Outcome between Control and Studied Groups^a

	Control Group, N = 237	Studied Group, N = 227	P
Occurrence of VAP	26	6	<0.001
Ventilator day	19.0 ± 15.5	14.5 ± 11.8	0.004
ICU stay, day	18.2 ± 16.0	14.4 ± 11.8	0.057
Hospital stay, day	58.1 ± 58.8	58.7 ± 48.0	0.675
Mortality	51	40	0.290

VAP indicates ventilator-associated pneumonia; ICU, intensive care unit.

^aData of mean ± SD or case number are given.