Research Article

Incidence and Risk Factors of Ventilator-Associated Pneumonia among Patients with Delirium in the Intensive Care Unit: A Prospective Observational Study

Table 3

Proportional hazard Cox regression analysis to determine the independent factors associated with VAP in patients with delirium.

VariablesUnivariateMultivariate
HR (95% CI) valueHR (95% CI) value

Age1.021 (0.977–1.068)0.3530.987 (0.923–1.056)0.713
Gender (male vs. female)0.709 (0.247–2.031)0.5220.081 (0.009–1.745)0.126
Trauma type (head vs. chest and abdominal)0.211 (0.022–2.026)0.1770.381 (0.007–19.49)0.631
APACHE IV score1.072 (0.864–1.329)0.5301.283 (0.898–1.831)0.171
RASS score2.012 (0.916–3.986)0.1912.845 (0.965–8.387)0.058
Onset of delirium0.817 (0.303–0.906)0.0410.465 (0.241–0.894)0.022
MV duration (days)6.012 (1.916–10.906)0.0034.604 (1.567–6.708)0.023
Serum glucose level0.999 (0.976–1.022)0.9190.983 (0.945–1.023)0.394
ICU LOS2.894 (1.784–4.019)<0.0011.854 (1.689–3.059)0.032

HR: hazard ratio, statistically significant <0.05; APACHE IV: Acute Physiology and Chronic Health Evaluation IV; RASS: Richmond Agitation-Sedation Scale; LOS: length of stay.