Table 4.
In vitro antimicrobial susceptibility of bla and PMQR.
| Antimicrobial agent | No. (%) of susceptible | No. (%) of susceptible | ||||
|---|---|---|---|---|---|---|
| bla positive | bla negative | p-value | PMQR positive | PMQR negative | p-value | |
| N = 70 | N = 83 | N = 87 | N = 66 | |||
| Imipenem | 26 (37.1) | 66 (79.5) | 0.000 | 52 (59.8) | 40 (60.6) | 0.917 |
| Meropenem | 25 (35.7) | 60 (72.3) | 0.000 | 55 (63.2) | 40 (60.6) | 0.742 |
| Ciprofloxacin | 22 (31.4) | 40 (48.2) | 0.035 | 19 (21.8) | 43 (65.2) | 0.000 |
| Levofloxacin | 33 (47.1) | 47 (56.6) | 0.242 | 29 (33.3) | 51 (77.3) | 0.000 |
| Cefepime | 27 (38.6) | 70 (84.3) | 0.000 | 57 (65.5) | 40 (60.6) | 0.532 |
| Ceftriaxone | 25 (35.7) | 64 (77.1) | 0.000 | 57 (65.5) | 32 (48.5) | 0.034 |
| Ceftazidime | 22 (31.4) | 67 (80.7) | 0.000 | 60 (68.9) | 29 (43.9) | 0.002 |
| Cefazolin | 20 (28.5) | 44 (53.0) | 0.002 | 36 (41.4) | 28 (42.4) | 0.897 |
| Aztreonam | 51 (72.8) | 70 (84.3) | 0.082 | 73 (83.9) | 48 (72.7) | 0.092 |
| Amikacin | 54 (77.1) | 71 (85.5) | 0.181 | 78 (89.7) | 47 (71.2) | 0.003 |
| Gentamicin | 28 (40.0) | 44 (53.0) | 0.108 | 39 (44.8) | 33 (50.0) | 0.526 |
| Tobramycin | 28 (40.0) | 42 (50.6) | 0.190 | 39 (44.8) | 31 (47.0) | 0.792 |
| Sulfamethoxazole | 18 (25.7) | 48 (57.8) | 0.000 | 30 (34.5) | 36 (54.5) | 0.013 |
| Chloramphenicol | 41 (58.6) | 53 (63.9) | 0.504 | 47 (54.0) | 47 (71.2) | 0.031 |
| Piperacillin/Tazobactam | 70 (100) | 83 (100) | – | 87 (100) | 66 (100) | – |
| Cefotetan | 70 (100) | 83 (100) | – | 87 (100) | 66 (100) | – |