Table 2.
Univariate and Multivariate Analysis of Risk Factors for TZP-NS/CRO-S Bacteremia Compared With TZP-S/CRO-S Bacteremia
| Potential Risk Factors | Univariate Odds Ratio (95% CI) |
P | Multivariate Adjusted Odds Ratio (95% CI) |
P |
|---|---|---|---|---|
| BL/BLI within 30 d | 5.92 (2.59–13.54) | <.001 | 5.52 (2.19–13.91) | <.001 |
| Cephalosporin within 30 d | 2.83 (1.10–7.27) | .026 | 3.02 (1.02–8.85) | .04 |
| Recent hospitalization | 2.30 (1.21–4.37) | .010 | - | - |
| CVC at time of bacteremia | 1.99 (1.04–3.79) | .035 | - | - |
| Hospital-onset bacteremia | 2.34 (1.23–4.50) | .001 | - | - |
Abbreviations: BL/BLI, β-lactam/β-lactamase inhibitor; CI, confidence interval; CRO-S, ceftriaxone-susceptible; CVC, central venous catheter; TZP-NS, piperacillin-tazobactam-nonsusceptible; TZP-S, piperacillin-tazobactam-susceptible.