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. 2009 Aug 10;53(10):4264–4269. doi: 10.1128/AAC.00431-09

TABLE 5.

Variables associated in multivariate analysis with ARB acquisition

Risk factor	Adjusted relative risk (95% CI^a)	P value
Length of hospitalization^b	2.5 (1.2-5.1)	0.01
HIV infection	2.1 (1.1-4.4)	0.04
Use of carbapenems	2 (1-3.8)	0.04
Age of >70 yrs	1.5 (1.1-2)	0.008

^a

CI, confidence interval.

^b

More than 16 days before the study enrollment.