Table 4.
Multivariate analysis of risk factors associated with Klebsiella pneumoniae NDM-1 infection.
| Variable | OR | 95% confidence interval | p |
|---|---|---|---|
| Surgery | 1.713 | 1.146–2.560 | 0.009 |
| Intensive care unit stay | 2.334 | 1.564–3.483 | <0.001 |
| Central venous catheter | 5.518 | 3.631–8.385 | <0.001 |
| Mechanical ventilation | 3.459 | 2.341–5.109 | <0.001 |
| Blood transfusion | 2.445 | 1.664–3.592 | <0.001 |
| Urinary catheter | 5.985 | 3.495–10.249 | <0.001 |
| Previous antibiotics (any) | 12.252 | 5.296–28.346 | <0.001 |
| Previous meropenem | 17.066 | 10.821–26.915 | <0.001 |
| Previous linezolid | 8.779 | 5.664–13.608 | <0.001 |
| Previous piperacillin/tazobactam | 4.368 | 2.747–6.496 | <0.001 |
| Previous tigecycline | 33.770 | 17.019–67.008 | <0.001 |