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Table 1 Bacterial species identified in culture tests and susceptibility to carbapenems

From: Economic and clinical burden from carbapenem-resistant bacterial infections and factors contributing: a retrospective study using electronic medical records in Japan

Organism, n (%) Total (N = 9517) CS infections (N = 9431) CR infections (N = 86)
Acinetobacter spp. 260 (2.7) 260 (2.8) 0 (0.0)
Citrobacter freundii 153 (1.6) 153 (1.6) 0 (0.0)
Enterobacter cloacae 794 (8.3) 778 (8.2) 16 (18.6)
Escherichia coli 3213 (33.8) 3195 (33.9) 18 (20.9)
Klebsiella aerogenes 430 (4.5) 408 (4.3) 22 (25.6)
Klebsiella oxytoca 608 (6.4) 604 (6.4) 4 (4.7)
Klebsiella pneumoniae 1913 (20.1) 1897 (20.1) 16 (18.6)
Proteus mirabilis 176 (1.9) 174 (1.8) 2 (2.3)
Proteus vulgaris 64 (0.7) 64 (0.7) 0 (0.0)
Pseudomonas aeruginosa 1906 (20.0) 1898 (20.1) 8 (9.3)
  1. Acinetobacter baumannii, lwoffii and others were included in Acinetobacter spp.
  2. CR carbapenem-resistant, CS carbapenem-susceptible