Table 4.
Distribution of qnr genes about quinolone resistance in control-group.
| Antibiotic | Pattern | qnrS-positive no. (%) | qnrS-negative no. (%) | P value | qnrB-positive no. (%) | qnrB-negative no. (%) | P value |
|---|---|---|---|---|---|---|---|
| Nalidixic acid | R (n = 42) | 12 (28.6) | 30 (71.4) | 0.12 | 9 (21.4) | 33 (78.6) | 0.51 |
| S (n = 23) | 11 (47.8) | 12 (52.2) | 3 (13) | 20 (87) | |||
| Ciprofloxacin | R (n = 25) | 8 (32) | 17 (68) | 0.65 | 6 (24) | 19 (76) | 0.51 |
| S (n = 40) | 15 (37.5) | 25 (62.5) | 6 (15) | 34 (85) | |||
| Ofloxacin | R (n = 32) | 11 (34.4) | 21 (65.6) | 0.86 | 7 (21.9) | 25 (78.1) | 0.48 |
| S (n = 33) | 12 (36.4) | 21 (63.6) | 5 (15.2) | 28 (84.8) | |||
| Norfloxacin | R (n = 23) | 7 (30.4) | 16 (69.6) | 0.53 | 6 (26.1) | 17 (73.9) | 0.31 |
| S (n = 42) | 16 (38.1) | 26 (61.9) | 6 (14.3) | 36 (85.7) |
Abbreviations: R: resistant; S: susceptible.