Table 3.
Antibiotic resistance by ST131 status among fluoroquinolone-resistant fecal Escherichia coli isolates from long-term care facility residents.
| Antibiotica | Prevalence of resistance, no. (%) | P value | ||
|---|---|---|---|---|
| All isolates (n = 37) |
ST131 (n = 29) |
Non-ST131 (n = 8) |
||
| Ampicillin-sulbactam | 31 (84) | 25 (86) | 6 (75) | 0.59 |
| Cefazolin | 13 (35) | 10 (35) | 3 (38) | > 0.99 |
| Ceftazidime | 10 (27) | 8 (28) | 2 (25) | > 0.99 |
| Ceftriaxone | 9 (24) | 7 (24) | 2 (25) | > 0.99 |
| Gentamicin | 13 (35) | 8 (28) | 5 (63) | 0.10 |
| Tobramycin | 16 (43) | 11 (38) | 5 (63) | 0.25 |
| Piperacillin-tazobactam | 4 (11) | 2 (7) | 2 (25) | 0.20 |
| Trimethoprim-sulfamethoxazole | 17 (46) | 14 (48) | 3 (38) | 0.70 |
a
Antibiotics listed are those to which ≥ 1 isolate was resistant. No isolate was resistant to imipenem.