Table 5 Antimicrobial resistance among bft-positive (210) and bft-negative (211) B. fragilis
Antibiotic (breakpoint in μg/ml) | No (%) of resistant bft-positive B. fragilis | Total no (%) of resistant bft-positive B. fragilis | No (%) of resistant bft-negative B. fragilis | P value | Confidence interval (CI) | ||
|---|---|---|---|---|---|---|---|
bft-1 | bft-2 | bft-3 | |||||
Amoxicillin-clavulanic acid (4) | 56 (26.7) | 2 (1) | 2 (1) | 60 (28.8) | 37 (34.6) | 0.354230 | [−15.52, 27.12] |
Clindamycin (2) | 119 (56.7) | 20 (9.5) | 3 (1.4) | 142 (67.6) | 120 (56.9) | 0.048847 | [− 1.81, 23.21] |
Imipenem (4) | 16 (7.6) | 1 (0.5) | 1 (0.5) | 18 (8.6) | 27 (12.8) | 0.482089 | [−18.50, 26.90] |
Meropenem (4) | 31 (14.8) | 2 (1) | 1 (0.5) | 34 (16.2) | 39 (18.5) | 0.479721 | [−17.83, 22.43] |
Metronidazole (8) | 10 (4.8) | 2 (1) | 0 | 12 (5.7) | 6 (2.8) | 0.182954 | [− 28.21, 34.01] |
Piperacillin (16) | 102 (48.6) | 15 (7.1) | 4 (1.9) | 121 (57.6) | 136 (64.5) | 0.157430 | [− 5.81, 19.61] |
Cefoxitin (16) | 36 (17.1) | 2 (1) | 1 (0.5) | 39 (18.6) | 70 (33.2) | 0.079984 | [−3.85, 33.05] |
Tigecycline (4) | 29 (13.8) | 5 (2.4) | 3 (1.4) | 37 (17.6) | 21 (10) | 0.345271 | [−13.89, 29.09] |