Infection rates.

Unique infections in all patients admitted to ICU (n = 1987) are shown in absolute numbers and in rates and a two-tailed test applied to compare the rates per 1000 admissions;aincludes all coagulase-negative staphylococci, and other organisms deemed to be contaminants eg. Corynebacterium spp. and Micrococcus spp.;bESCPM: Enterobacter, Serratia, Citrobacter, Proteus, Morganella spp.;cincludes surgical specimens and drainage procedures;dNF: glucose non-fermenting Gram-negative bacilli, including Acinetobacter spp., Pseudomonas spp. Stenotrophomonas spp., etc.eChi-Squared analysis.