16S rRNA gene copies/sample ± SE (log scale) | ||||
---|---|---|---|---|
Subjects treated N (proportion) | No treatment | Received antibiotic | P value | |
Vancomycin | 35 (0.3) | 15.18 ± 0.39 | 14.81 ± 0.53 | 0.58 |
Metronidazole | 22 (0.19) | 15.03 ± 0.37 | 15.21 ± 0.55 | 0.79 |
Piperacillin-tazobactam | 20 (0.17) | 15.46 ± 0.34 | 13.15 ± 0.70 | **0.006 |
Cefepime | 18 (0.16) | 14.95 ± 0.35 | 15.70 ± 0.72 | 0.35 |