Table 3.
Bivariate Comparison of Primary and Secondary Outcomes Between Patients With Drug Exposures Above Versus Below the Area Under the Curve/Minimum Inhibitory Concentration by Broth Microdilution of 650
Outcome | AUC/MICBMD | Proportion, % | Risk Difference (95% CI) | |
---|---|---|---|---|
Unadjusted | Adjusted | |||
Treatment failure | <650 | 15.44 | 0.07 (–.03 to .17) | 0.03 (–.06 to .12) |
≥650 | 22.41 | |||
Persistent bacteremia | <650 | 8.05 | 0.04 (–.03 to .11) | 0.01 (–.07 to .09) |
≥650 | 12.07 | |||
30-d mortality | <650 | 9.46 | 0.04 (–.03 to .12) | 0.04 (–.02 to .10) |
≥650 | 14.16 | |||
AKIa | <650 | 21.0 | 0.12 (.00–.24) | 0.09 (–.04 to .22) |
≥650 | 33.0 | |||
VINTa | <650 | 22.6 | 0.14 (.01–.26) | 0.12 (–.00 to .25) |
≥650 | 36.4 | |||
AUC/MICEtest | Proportion, % | |||
Treatment failure | <320 | 11.1 | 0.10 (.01–.19) | 0.07 (–.07 to .22) |
≥320 | 21.2 | |||
Persistent bacteremia | <320 | 5.56 | 0.06 (–.01 to .13) | 0.07 (–.05 to .19) |
≥320 | 11.4 | |||
30-d mortality | <320 | 7.04 | 0.06 (–.02 to .14) | 0.07 (–.06 to .20) |
≥320 | 13.16 | |||
AKIa | <320 | 14.3 | 0.17 (.05–.28) | 0.15 (.02–.29) |
≥320 | 30.9 | |||
VINTa | <320 | 15.9 | 0.18 (.06–.29) | 0.16 (.02–.30) |
≥320 | 33.6 |
Abbreviations: AKI, acute kidney injury; AUC, area under the curve; CI, confidence interval; MICBMD, minimum inhibitory concentration by broth microdilution; MICEtest, minimum inhibitory concentration by Etest; VINT; vancomycin-induced nephrotoxicity.
aPatients with baseline serum creatinine (<2.0 mg/dL).