Clinical epidemiology of carbapenem-intermediate or -resistant Enterobacteriaceae.

Objectives: Despite the increasing incidence of carbapenem-intermediate or -resistant Enterobacteriaceae (CIRE), risk factors associated with CIRE infections have not been well defined. This study characterizes factors associated with CIRE among two different source populations.

Methods: A case-control study was performed at a tertiary care medical centre between January 2005 and December 2009.