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Table 3 In vitro susceptibility to antibiotics alone (first row or column) or in combination (other rows/columns) on the infectious agents isolated either from non-nosocomial ascitic fluids after exclusion of coagulase negative staphylococci (upper right half) or from confirmed spontaneous bacterial peritonitis (including coagulase negative staphylococci , lower left half)

From: Evolving epidemiology and antimicrobial resistance in spontaneous bacterial peritonitis: a two-year observational study

n = 84 amoxicillin amoxicillin-clavulanate Piperacillin-tazobactam Third generation cephalosporin Fluoro-quinolone Aminoglycosides Cotrimoxazole Glycopeptide
n = 57         
- 47.6% 63.1% 65.5% 54.8% 57.1% 50.0% 47.6% 50.0%
Amoxicillin 40.4%   - - 77.4% 78.6% 82.1% 77.4% 69.0%
Amoxicillin-clavulanate 43.9% -   - - 81.0% 83.3% 81.0% 78.6%
Piperacillin-tazobactam 47.4% - -   - 79.8% 79.8% 78.6% 85.7%
Third generation cephalosporin 33.3% 56.1% - -   72.6% 69.0% 69.0% 84.5%
Fluoroquinolone 38.6% 61.4% 61.4% 61.4% 49.1%   - 65.5% 84.5%
Aminoglycosides 47.4% 73.7% 73.7% 68.4% 56.1% -   66.7% -
Cotrimoxazole 29.8% 57.9% 57.9% 57.9% 45.6% 49.1% 47.3%   78.6%
Glycopeptide 50.9% 71.9% 71.9% 80.7% 77.2% 84.2% - 73.3%  
  1. Combinations with in vitro coverage above 75% are in grey.
  2. Most frequently found bacteria isolated from ascitic fluid samples (n = 268): coagulase negative staphylococci (n = 73): enterococci (n = 65), Escherichia coli (n = 48), streptococci (n = 32), and KES (Klebsiella, Enterobacter, Serratia) bacteria (n = 29).
  3. Most frequently found bacteria isolated from non-nosocomial ascitic fluid samples (n = 109): coagulase negative staphylococci (n = 24), Escherichia coli (n = 20), streptococci (n = 17), enterococci (n = 16), and KES (Klebsiella, Enterobacter, Serratia) bacteria (n = 10).
  4. Most frequently found bacteria isolated from confirmed SBP (n = 57): Escherichia coli (n = 15), coagulase negative staphylococci (n = 13), enterococci (n = 13), streptococci (n = 7), and KES (Klebsiella, Enterobacter, Serratia) bacteria (n = 5).