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Table 3 Log-binomial regression modeling the association between mean 7-day hemoglobin and hospital mortality

From: Association of hemoglobin concentration and mortality in critically ill patients with severe traumatic brain injury

Variable RRunadj RRadj 95% CI P value
Hemoglobin range     
   <90 g/L 3.7 3.1 1.5-6.3 0.002
   90-99 g/L - - - -
   100-110 g/L 1.8 1.5 0.70-3.2 0.29
   >110 g/L 1.2 1.2 0.49-2.7 0.75
Insertion of EVD 2.3 2.7 1.5-5.1 0.001
Age in years 1.0 1.0 1.0-1.1 <0.001
Transfusion of RBCs 2.4 1.4 0.64-2.9 0.42
Admission GCS score 0.81 0.85 0.74-0.99 0.04
  1. CI, confidence interval; EVD, external ventricular drain; GCS, Glasgow Coma Scale; RBC, red blood cell; RRadj, adjusted risk ratio; RRunadj, unadjusted risk ratio.