Table 3.

Association between each variable for VAP (CPIS) and group in multivariable logistic regression model

Variables	Odds ratios (95% CI)	p
Model 1
APACHE II	1.04 (0.9–1.1)	0.987
CPT/MI-E	0.08 (0.01–0.57)	0.012
Model 2
Secretion score	1.04 (0.93–1.15)	0.457
CPT/MI-E	0.08 (0.01–0.59)	0.006
Mediators
MV duration	1.01 (0.99–1.03)	0.501
CPT/MI-E	0.06 (0.01–0.41)	0.001

VAP, ventilator-associated pneumonia; CPIS, clinical pulmonary infection score; CPT, chest physical therapy; APACHE II, acute physiology and chronic health evaluation score; MI-E, mechanical insufflation-exsufflation; MV, mechanical ventilation