TABLE 2

Univariate and multivariate Cox proportional hazards models for 14-day mortalityb

FactorUnivariate modelMultivariate model
HR95% CIP valueHR95% CIP value
Cefepime treatment0.380.10–1.430.190.570.14–2.260.42
Age1.020.98–1.050.33
Neutropeniaa0.180.04–0.840.03
Pitt bacteremia score2.221.58–3.15<0.012.211.56–3.13<0.01
Leukemia0.660.17–2.480.54
History of HCT0.830.25–2.700.75
Female gender0.610.16–2.290.46
Active chemotherapy1.050.23–4.890.94
ICU residence6.071.78–20.8<0.01
Intra-abdominal source1.180.36–3.860.79
Combination aminoglycoside0.670.20–2.290.52
  • a Absolute neutrophil count (ANC) < 500 cells/mm3.

  • b HR, hazard ratio; CI, confidence interval; HCT, hematopoietic stem cell transplant; ICU, intensive care unit.