TABLE 2.
Distribution of ciprofloxacin and CAZ susceptibilities among qnr+ and qnr-deficient isolatesa
| Susceptibility characteristic of indicated isolate(s) | No. of isolates with indicated characteristic
|
Relative risk | 95% CI | |||
|---|---|---|---|---|---|---|
|
qnr+
|
qnr-deficient
|
|||||
| CAZ-R | CAZ-S | CAZ-R | CAZ-S | |||
| K. pneumoniae | ||||||
| FQ-S | 1 | 2 | 134 | 309 | 1.1 | 0.2-5.5 |
| FQ-I/R | 7 | 0 | 131 | 18 | 1.1 | 0.9-1.3 |
| Total | 8 | 2 | 265 | 327 | 1.8 | 1.3-2.5 |
| Enterobacter spp. | ||||||
| FQ-S | 15 | 8 | 95 | 397 | 3.4 | 2.4-4.8 |
| FQ-I/R | 9 | 1 | 16 | 3 | 1.1 | 0.8-1.4 |
| Total | 25 | 8 | 111 | 400 | 3.5 | 2.7-4.5 |
a
FQ, fluoroquinolone; S, susceptible; I, intermediate; R, resistant.