TABLE 2.
Percentages of agreement between results from commercial VetMIC and Etest assays and results from the broth microdilution reference method
| Antibiotic | % Agreementa between results from broth microdilution and: |
|
|---|---|---|
| VetMIC | Etest | |
| Erythromycin | 19.5 | 30.7 |
| Tetracycline | 96.2 | 96.2 |
| Streptomycin | 92.3 | 96.2 |
| Ampicillin | 92.3 | 100 |
| Gentamicin | 73.1 | 69.2 |
| Clindamycin | 50.0 | 80.8 |
| Total | 70.5 | 78.8 |
a
Values are percentages of agreement between the median MICs determined by broth microdilution (the reference method) in laboratory 8 and the interlaboratory range of the median MICs (±1 log2 dilution) determined by the VetMIC and Etest methods.