TABLE 2

Colistin MIC results by BMD compared to those by CBDE at site 2b

Colistin MIC (µg/ml) by BMDNo. of isolates with the following colistin MIC (µg/ml) by CBDE:
≤124>4
≤1992a
2
4
>49
  • a One C. freundii isolate had an MIC of ≤0.25 µg/ml by BMD, and 1 E. cloacae isolate had an MIC of 0.5 µg/ml by BMD.

  • b Categorical agreement was 100% and essential agreement was 98%, with no very major or major errors. CBDE, colistin broth disk elution; BMD, broth microdilution.