Multivariable logistic regression model for significant predictors of infection-related mortality

CovariateaaOR95% CI
APACHE II score1.141.07–1.21
  • a Other factors that were included in the multivariable regression model but that were not significant included nosocomial pneumonia, bone and joint infection, secondary bacteremia, A. baumannii as the infecting organism, P. aeruginosa as the infecting organism, proportion of treatment days with adequate i.v. polymyxin doses, and receipt of nebulized CMS. Factors that were evaluated but that did not remain in the stepwise regression model included K. pneumoniae as the infecting organism, bloodstream infection, average number of doses of polymyxin B administered, and duration (in days) between XDR culture and treatment.