TABLE 3.
Activity of mecillinam against antibiotic-susceptible and resistant Gram-negative uropathogens
| Number of isolates | Number of mecillinam-susceptible isolates | Percentage of mecillinam-susceptible isolates (95% CI) | |
|---|---|---|---|
| Ampicillin | |||
| Susceptible | 1539 | 1535 | 99.7 (99.3 to 99.9) |
| Resistant | 461 | 441 | 95.7 (93.4 to 97.3) |
| Ciprofloxacin | |||
| Susceptible | 1999 | 1975 | 98.8 (98.2 to 99.2) |
| Resistant | 1 | 1 | |
| Trimethoprim/sulfamethoxazole | |||
| Susceptible | 1832 | 1819 | 99.3 (99.8 to 99.6) |
| Resistant | 168 | 157 | 93.5 (88.6 to 96.7) |
| Nitrofurantoin* | |||
| Susceptible | 1889 | 1880 | 99.4 (99.1 to 99.8) |
| Resistant | 92 | 78 | 84.8 (75.8 to 91.4) |
| Total | 2000 | 1976 | 98.8 (98.2 to 99.2) |
*
1981 isolates evaluable for this analysis