Table 5.
Potential risk factors associated with VIM-1-producing Klebsiella pneumoniae colonization or infection as determined by multivariate analysisa
| Model | OR | 95% CI | P |
|---|---|---|---|
| General model | |||
| Presence of mechanical ventilation (days) | 1.2 | 1.1–1.3 | <0.001 |
| Use of parenteral nutrition | 3.6 | 1.4–9.4 | 0.009 |
| Model with specific antimicrobialsb | |||
| Extended-spectrum cephalosporins (>7 days) | 4.2 | 1.1–15.3 | 0.032 |
| Linezolid | 7.5 | 3.1–18.3 | <0.001 |
a
Multivariate analyses were performed by logistic regression adjusted for Apache II index.
b
The remaining risk factors included in the general model are not shown because the ORs, 95% CIs, and P values did not change significantly.