Skip to main content

Table 4 Species/drug combinations with changes ≥ 10% in the category susceptible after implementation of EUCAST MIC breakpoints

From: Impact of minimal inhibitory concentration breakpoints on local cumulative bacterial susceptibility data and antibiotic consumption

  Assignment of clinical isolates to AST categories (%)
  Q3 2011-Q2 2012 (DIN) Q3 2012-Q2 2013*(EUCAST)
Species#/drug S I R S I R
E. cloacae n = 77   n = 41  
ciprofloxacin 97 0 3 85* 9 6
S. marcescens n = 116   n = 93  
ciprofloxacin 99 0 1 88* 9 3
M. morganii n = 107 n = 92
ciprofloxacin 97 0 3 82* 10 8
C. freundii n = 93 n = 89
pip/taz 77 4 19 87* 4 9
P. aeruginosa n = 462 n = 444
piperacillin 41 53 7 81* 3 16
gentamicin 55 36 9 92* 0 8
  1. *Asterisks indicate a significant (p < 0.05) of the number of susceptible isolates according to EUCAST MIC breakpoints compared to DIN.
  2. #No variation ≥ 10% in the category susceptible was found for E. coli, K. pneumoniae, P. mirabilis, S. maltophilia, A. baumannii, S. aureus, coagulase negative staphylococci, E. feacalis, and E. faecium.