TABLE 3.

Logistic regression analysis of characteristics of KPC-Kp or MDR-AB infection^a

Variable	ORb	95% CI	P
Previous hospitalization (90 days)	5.01	2.15–11.6	<0.001
Steroid therapy during ICU stay	0.1	0.04–0.25	<0.001
Primary bacteremia	2.3	1.1–5.5	0.04
Pneumonia	0.4	0.18–0.96	0.04
KPC-Kp colonization at time of ICU admission	13.8	4.3–44.7	<0.001

^aKPC-Kp, Klebsiella pneumoniae carbapenemase-producing K. pneumoniae; MDR-AB, multidrug-resistant Acinetobacter baumannii.

^bAn OR of >1 indicates a factor leading to KPC-Kp over MDR-AB infection, and an OR of <1 indicates a factor leading to MDR-AB over KPC-Kp infection.