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Table 2 Cross tabulation of the results of 172 staphylococcal isolates classified as resistant or susceptible to the antimicrobials tested in this study by both MIC and disc diffusion testing

From: Antimicrobial resistance and characterisation of staphylococci isolated from healthy Labrador retrievers in the United Kingdom

Antimicrobial resistance    MIC   
    No Yes Total
Oxacillin (OX) Disc diffusion No 50 10 60
   Yes 2 110 112
   Total 52 120 172
   Kappa = 0.842    
    No Yes Total
Oxacillin mecA positive   No 115 0 115
   Yes 1 56 57
   Total 116 56 172
   Kappa = 0.987    
    No Yes Total
Ciprofloxacin (CIP)   No 146 0 157
   Yes 14 12 15
   Total 160 12 172
   Kappa = 0.593    
    No Yes Total
Gentamicin (GM)   No 156 1 157
   Yes 0 15 15
   Total 156 16 172
   Kappa = 0.965    
    No Yes Total
Fusidic acid (FA)   No 36 5 41
   Yes 25 106 131
   Total 61 111 172
   Kappa = 0.589    
    No Yes Total
Cefalexin (CFX)   No 117 15 132
   Yes 0 40 40
   Total 117 55 172
   Kappa = 0.784    
    No Yes Total
Cefovecin (CVN)   No 130 11 141
   Yes 0 31 31
   Total 130 42 172
   Kappa = 0.810    
    No Yes Total
Tetracycline (T10)   No 148 1 149
   Yes 0 23 23
   Total 148 24 172
   Kappa = 0.975    
     Yes Total
Trimethoprim-sulfamethoxazole (TS)   No 156 2 158
   Yes 3 11 14
   Total 159 13 172
   Kappa = 0.799    
    No Yes Total
Clindamycin (CD)   No 148 2 150
   Yes 4 18 22
   Total 152 20 172
   Kappa = 0.837