TABLE 2.
Results of checkerboard titrationsa
| Combination | % Strains for which the FIC indices were as follows:
|
|
|---|---|---|
| ≤0.5 | >0.5–4 | |
| Trovafloxacin + cefoperazone | 58 | 42 |
| Trovafloxacin + ceftazidime | 58 | 42 |
| Levofloxacin + cefoperazone | 54 | 46 |
| Levofloxacin + ceftazidime | 50 | 50 |
| Ciprofloxacin + cefoperazone | 58 | 42 |
| Ciprofloxacin + ceftazidime | 50 | 50 |
| Trovafloxacin + cefpirome | 35 | 65 |
| Trovafloxacin + gentamicin | 11 | 89 |
| Levofloxacin + cefpirome | 35 | 65 |
| Levofloxacin + gentamicin | 11 | 89 |
| Ciprofloxacin + cefpirome | 35 | 65 |
| Ciprofloxacin + gentamicin | 20 | 80 |
No strains for which FIC indices were >4.0 were found.