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Differences in antibiotic resistance.
| Antibiotic | MIC interpretative values | Resistance rate | Resistance rate | p value |
|---|---|---|---|---|
| (μg/mL) | (years 1998-99) | (years 2011-12) | ||
| Metronidazole | >16 | 35 (56%) | 15 (33%) | 0.014 |
| Clarithromycin | >4 | 10 (16%) | 12 (26%) | 0.142 |
| Ampicillin | >4 | 2 (3%) | 0 | ns |
| Tetracyclines | >16 | 1 (2%) | 0 | ns |
| Metronidazole + clarithromycin | 5 (8%) | 3 (7%) | ns | |
|
| ||||
| Total | 63/75 (84%) | 46/66 (70%) | 0.079 | |
