TABLE 2.
Correlation of MICs determined by Etest and agar dilution (reference) methods
| Antimicrobial agent | No. of Etest MICs within the indicated log2 dilution of agar dilution MICs
|
% Agreementa | ||||||
|---|---|---|---|---|---|---|---|---|
| >−2 | −2 | −1 | 0 | 1 | 2 | >2 | ||
| Clarithromycin | 4 | 2 | 7 | 13 | 8 | 3 | 0 | 76 |
| Erythromycin | 0 | 0 | 0 | 35 | 8 | 0 | 0 | 100 |
| Linezolid | 0 | 6 | 7 | 18 | 4 | 3 | 0 | 76 |
| Quinupristin-dalfopristin | 0 | 0 | 0 | 40 | 0 | 0 | 0 | 100 |
| Ciprofloxacin | 3 | 6 | 6 | 9 | 8 | 1 | 7 | 57 |
| Gemifloxacin | 1 | 2 | 0 | 5 | 31 | 0 | 0 | 92 |
| Levofloxacin | 0 | 3 | 1 | 1 | 1 | 25 | 7 | 8 |
| Moxifloxacin | 3 | 1 | 7 | 19 | 7 | 4 | 0 | 80 |
a
Percentage of clinical isolates for which the MIC was the same within ± 1 log2 dilution.