Table 3.

Multivariable logistic regression model predicting MDR status in infected patients. Estimates greater than 1 are associated with greater odds for tracheal infection with MDR Enterobacteriaceae

Risk factor	Adjusted Odds ratio	95% CI	p-value
Gastrointestinal comorbidity	2.3	0.92–5.77	0.08
Antibiotic pre-exposure ≥7 days	4.56	1.69–12.30	0.003