Skip to main content
. Author manuscript; available in PMC: 2014 Apr 10.
Published in final edited form as: Infect Control Hosp Epidemiol. 2011 Dec 20;33(2):160–166. doi: 10.1086/663708

TABLE 2.

Multivariable Model of Risk Factors for Reduced Vancomycin Susceptibility in Staphylococcus aureus Bacteremia

Variable Adjusted OR (95% CI) P
Inpatient vancomycin use in prior 30 daysa 4.02 (1.11–14.50)b .03
Stay at Penn Presbyterian Medical Centerc 1.46 (0.92–2.32) .10
Inpatient levofloxacin use in prior 30 daysd 2.42 (1.14–5.14) .02
MRSAe 1.79 (1.14–2.83) .01
Interaction between vancomycin use and methicillin susceptibility 0.22 (0.05–1.00) .05

NOTE. CI, confidence interval; MRSA, methicillin-resistant S. aureus; OR, odds ratio; SE, standard error.

a

Coefficient and OR reflect those subjects with methicillin-susceptible S. aureus (MSSA).

b

Adjusted OR (95% CI) for the association between inpatient vancomycin use in prior 30 days and reduced vancomycin susceptibility was 4.02 (1.11–14.50) in patients with MSSA infection and 0.87 (0.36–2.13) in patients with MRSA infection.

c

As opposed to the Hospital of the University of Pennsylvania.

d

As opposed to no inpatient levofloxacin use in prior 30 days.

e

As opposed to MSSA.