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Table 1 Individual CRE organisms and their frequencies

From: Carbapenem resistance, inappropriate empiric treatment and outcomes among patients hospitalized with Enterobacteriaceae urinary tract infection, pneumonia and sepsis

CRE organism name CRE organism Count % of Total CRE % of the Total patientsa
(N = 1938) (N = 1938) (N = 1227)
Klebsiella pneumoniae 724 37.4% 59.0%
Proteus mirabilis 370 19.1% 30.2%
Escherishia coli 294 15.2% 24.0%
Enterobacter cloacae 128 6.6% 10.4%
Providencia spp 94 4.9% 7.7%
Serratia marcescens 87 4.5% 7.1%
Morganella morganii 87 4.5% 7.1%
Enterobacter aerogenes 40 2.1% 3.3%
Proteus spp. 27 1.4% 2.2%
Citrobacter freundii 27 1.4% 2.2%
Klebsiella oxytoca 22 1.1% 1.8%
Enterobacter other 13 0.7% 1.1%
Citrobacter other 14 0.7% 1.1%
Serratia other 6 0.3% 0.5%
Klebsiella other 5 0.3% 0.4%
  1. aSum adds up to >100%, as some patients had >1 CRE organism