TABLE 2.

Cox regression analysis of factors associated with all-cause 14-day mortality

VariableModel 1Model 2
HR (95% CI)PHR (95% CI)P
Age1.03 (1.01-1.06)0.0211.03(1.00-1.05)0.028
MIC of carbapenems >4 μg/ml2.83 (1.08-7.41)0.0352.34 (0.83-6.55)0.106
Polymicrobial bacteremia1.45 (0.65-3.21)0.3601.52 (0.69-3.36)0.300
Rapidly fatal underlying disease2.84 (1.26-6.39)0.0122.9 (1.29-6.49)0.010
Non-urinary source of bacteremia3.33 (0.44-25.05)0.2423.46 (0.46-26.00)0.23
Pitt bacteremia score ≥42.1 (0.91-4.81)0.081.96 (0.85-4.52)0.114
Inappropriate empiricala therapy1.63 (0.68-3.86)0.270
  • a Similar results were obtained when the variable “inappropriate definitive therapy” was included in model 2.