TABLE 5.

Variables associated in multivariate analysis with ARB acquisition

Risk factorAdjusted relative risk (95% CIa)P value
Length of hospitalizationb2.5 (1.2-5.1)0.01
HIV infection2.1 (1.1-4.4)0.04
Use of carbapenems2 (1-3.8)0.04
Age of >70 yrs1.5 (1.1-2)0.008
  • a CI, confidence interval.

  • b More than 16 days before the study enrollment.