TABLE 3.
Multivariate analysis of risk factors associated with increased risk of acquisition of ESBL-producing E. coli
| Patient group and risk factor | ORa | P value |
|---|---|---|
| Patients with CTX-M-producing E. coli | ||
| Renal disease | 8.4 | 0.0037 |
| Diabetes mellitus | 5.2 | 0.0231 |
| Urinary tract infection | 17.9 | 0.0030 |
| Community-acquired infection | 26.7 | <0.0001 |
| Surgery | 7.1 | 0.0281 |
| Gynecological surgery | 6.9 | 0.0087 |
| Urinary catheter | 4.1 | 0.0437 |
| Patients with clonal CTX-M-producing E. coli | ||
| Cardiovascular disease | 5.9 | 0.0153 |
| Urinary incontinence | 8.9 | 0.0028 |
| Urinary catheter | 5.3 | 0.0211 |
| Polymicrobial infection | 5.4 | 0.0205 |
| Patients with other ESBL-producing E. coli | ||
| Cutaneous samples | 16.2 | 0.0064 |
| Nosocomial infection | 23.3 | <0.0001 |
| Tracheotomy | 14.8 | 0.0001 |
a
OR, odds ratio.