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Concordance between results of PhaB assay with ciprofloxacin at 8 μg/ml for 48 h and resistance ratio method
| PhaB assay result | No. of isolates with resistance ratio method result ofa:
|
% Concordance | |
|---|---|---|---|
| Sensitive | Resistant | ||
| 99% cutoff (n = 39) | |||
| Sensitive | 11 | 0 | |
| Resistant | 23 | 5 | 47 |
| 90% cutoff (n = 42) | |||
| Sensitive | 37 | 0 | |
| Resistant | 0 | 5 | 100 |
Results after 10 to 21 days, using a cutoff of 5 μg/ml.
