TABLE 2.
Patient and strain characteristics of ESBL-E-positive cultures
| Characteristic | Both methods (n = 20) | Preenrichment only (n = 7) |
|---|---|---|
| Species (no.) | ||
| Escherichia coli | 19 | 5 |
| Morganella morganii | 1 | 0 |
| Enterobacter cloacae | 0 | 1 |
| Pantoea agglomerans | 0 | 1 |
| Chromosomal AmpC beta-lactamase gene (no.) | ||
| No | 19 | 5 |
| Yes | 1 | 2 |
| ESBL resistance gene (no.) | ||
| CTX-M-1-like | 6 | 4 |
| CTX-M-3-like | 1 | 0 |
| CTX-M-15-like | 8 | 1 |
| CTX-M-9 group | 3 | 0 |
| SHV 238S + 240K | 1 | 2 |
| TEM 104K + 238S | 1 | 0 |
| Age (yr) | ||
| Median | 64 | 73 |
| Range | 5–86 | 58–84 |
| Gender (no.) | ||
| Male | 12 | 4 |
| Female | 8 | 3 |
| Length of hospital stay (days) | ||
| Median | 5 | 4 |
| Range | 1–15 | 1–27 |
| Antibiotic use (no.)a | ||
| No | 16 | 7 |
| Amoxicillin-clavulanic acid, i.v. | 3 | 0 |
| Flucloxacillin, i.v. | 1 | 0 |
a
i.v., intravenously.