Table 1.
Characteristics of CTX M-9-grp extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae and ESC-sensitive Enterobacteriaceae (ESC-S)
| CTX M-9-grp ESBL (n = 44) | ESC-S (n = 132) | |
|---|---|---|
| Species, n (%) | ||
| Klebsiella pneumoniae | 3 (7) | 23 (17) |
| Escherichia coli | 40 (91) | 78 (59) |
| Enterobacter cloacae | 1 (2) | 21 (16) |
| Other Enterobacteriaceae | 0 (0) | 10 (7) |
| Source, n (%) | ||
| Urine | 31 (70) | 95 (72) |
| Respiratory | 7 (16) | 20 (15) |
| Blood | 4 (9) | 12 (9) |
| Othera | 2 (5) | 5 (4) |
ESC extended-spectrum cephalosporin
aOther includes wound, abscess, abdominal, and peritoneal sources