TABLE 1.
Microbiologic characteristics of 86 ST131 and non-ST131 E. coli fecal isolates from patients colonized with fluoroquinolone-resistant E. colia
| Variable | Result for: |
P value | |
|---|---|---|---|
| ST131 (n = 21) | Non-ST131 (n = 65) | ||
| No. (%) with H30 | 21 (100) | NA | |
| No. (%) with H30-Rx | 7 (33) | NA | |
| Median levofloxacin MIC (IQR) | 32 (32–32) | 32 (32–32) | 0.64 |
| Median no. of gyrA mutations (IQR) | 2 (2–2) | 2 (2–2) | 0.42 |
| Median no. of parC mutations (IQR) | 2 (2–2) | 1 (1–1) | <0.001 |
| No. (%) with OST-positive status | 3 (14) | 38 (59) | <0.001 |
| No. (%) with blaCTX-M-15 | 0 (0) | 1 (2) | >0.99 |
a
Data are presented as number (percentage) of isolates unless noted otherwise. NA, not applicable; IQR, interquartile range; OST, organic solvent tolerance.