Table 3.
Association between patient characteristics and acquisition of extended-spectrum β-lactamase-producing Klebsiella pneumoniae infection.
| Patient characteristic | ESBL-negative n = 98 (%) |
ESBL-positive n = 87 (%) |
P value |
|---|---|---|---|
| Age | |||
| >50 years | 36 (36.7) | 56 (64.4) | ≤0.001 |
| ≤50 years | 62 (63.3) | 31 (35.6) | |
| Sex | |||
| Male | 27 (27.6) | 39 (44.8) | 0.05 |
| Female | 71 (72.4) | 48 (55.2) | |
| Ward | |||
| ICU | 15 (33.3) | 23 (28) | ≤0.001 |
| Internal medicine | 7 (15.6) | 10 (12.2) | |
| Infectious | 5 (11.1) | 14 (17.1) | |
| Surgery | 6 (13.3) | 12 (14.6) | |
| Gynecology | 4 (8.9) | 7 (8.5) | |
| Pediatric | 5 (11.1) | 7 (8.5) | |
| Emergency | 1 (2.2) | 6 (7.3) | |
| CCU | 2 (4.4) | 3 (3.7) | |
| Sample type | 0.001 | ||
| Urine | 74 (75.5) | 45 (51.7) | |
| CSF | 1 (1) | 1 (1.1) | |
| Catheters | 1 (1) | 2 (2.3) | |
| Blood | 5 (5.1) | 1 (1.1) | |
| Wound | 3 (3.1) | 6 (6.9) | |
| Respiratory | 14 (14.3) | 32 (36.8) | |
| Drug resistance | |||
| Fluoroquinolones resistance | 5 (5.1) | 78 (89.7) | ≤0.001 |
| Multidrug resistance | 62 (63.3) | 87 (100.0) |