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Table 5 Multidrug resistance frequency of Enterobacteriaceae, Acinetobacter and Pseudomonas species

From: Sepsis: emerging pathogens and antimicrobial resistance in Ethiopian referral hospitals

Gram-negative isolates Resistance frequency
  R-0% R-1% R-2% R-3% R-4% R-5% R-6% R-7% R-8% R-9% R-10% MDR %
Enterobacteriaceae K. pneumoniae (n = 111) 0 0.9 3.6 0.9 0.9 8.1 15.3 15.3 34.2 12.6 8.1 95.4
K. variicola (n = 77) 0 22.1 6.5 3.9 14.3 9.1 2.6 7.8 28.6 5.2 0 72.2
E. coli (n = 53) 3.8 7.5 3.8 7.5 11.3 17.0 1.9 22.6 13.2 11.3 0 84.8
E. cloacae complex (n = 29) 3.4 10.3 13.8 10.3 0 6.9 10.3 3.4 24.1 13.8 3.4 72.7
P. dispersa (n = 21) 0 9.5 9.5 14.3 4.8 42.9 14.3 0 0 4.8 0 81
K. oxytoca (n = 13) 0 15.4 0 7.7 0 7.7 15.4 30.8 15.4 7.7 0 84.6
Rare Enterobacteriaceae isolates (n = 14) 0 21.4 7.1 7.1 7.1 14.3 14.3 14.3 7.1 7.1 0 71.3
Total (n = 318) 0.9 10.1 5.7 5.0 6.3 12.3 9.4 13.2 24.2 9.7 3.1 83.2
Acinetobacter species A. baumannii (n = 34) 0 2.9 5.9 14.7 20.6 20.6 14.7 20.6 91.2
Other Acinetobacter species (n = 8) 0 0 50.0 12.5 0 0 25 12.5 50.0
Total (n = 42) 0 2.4 14.3 14.3 16.7 16.7 16.7 19.0 83.4
Pseudomonas species P. aeruginosa (n = 17) 0 11.8 29.4 29.4 23.5 0 5.9 58.8
Other Pseudomonas species (n = 2) 0 0 100 0 0 0 0 0
Total (n = 19) 0 10.5 42.1% 31.6 5.3 5.3 5.3 47.5
  1. R-0, R-1, R-2, …, R-10 stand for resistance to 0, 1, 2, …., 10 antibiotics from different classes; MDR stands for multidrug resistance to three or more antibiotics from different classes,—non applicable