Bloodstream infections caused by multidrug-resistant gram-negative bacteria: epidemiological, clinical and microbiological features

Table 3 Adjusted odds ratio for independent risk factors for multidrug resistant gram-negative bacteremia based on multivariate logistic regression analysis^a

Risk factors	Adjusted multivariate
	p-value	OR (95% CI)
Male sex	0.02	2.98 (1.18–7.47)
Age ≥ 60 years old	0.03	2.52 (1.07–5.93)
Previous therapeutic antimicrobial use	0.04	2.45 (1.06–5.65)
Liver disease	0.02	4.91 (1.25–19.29)
Bacteremia by Klebsiella pneumoniae	<0.001	4.59 (1.93–70.93)

(^a) Multivariate analysis using a logistic regression model included the following variables: male sex, age ≥ 60 years old, previous therapeutic antimicrobial use, liver disease, catheter use, hospitalization in prior 6 months and bacteremia by K. pneumoniae

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