Table 2.

Analysis of risk factors for CRE bloodstream infections (logistic regression analysis).

Risk factor	OR value	95% CI	P value
Indwelling urethral catheterization	11.40	1.05 to 124.18	0.046
Admission to the ICU	9.42	2.14 to 41.50	0.003
Respiratory system source	8.95	1.73 to 46.38	0.009
Prior use of broad-spectrum antibiotics within 30 days	11.25	1.19 to 106.79	0.035

OR: odds ratio; 95% CI: 95% confidence interval; respiratory system source: bloodstream infection with Enterobacteriaceae from the respiratory system.