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Table 3 Univariate and multivariate logistic regression analysis in patients with APACHE III scores

From: Age of red blood cells and mortality in the critically ill

Variable Unadjusted Multivariate
  Odds ratio (95% CI) P value Odds ratio (95% CI) P value
APACHE III score (one point) 1.03 (1.02 to 1.04) <0.0001* 1.04 (1.03 to 1.05) <0.0001*
RBC units transfused (number) 1.09 (1.05 to 1.13) <0.0001* 1.02 (0.97 to 1.08) 0.45
Platelet transfusion (yes/no) 1.79 (1.20 to 2.67) 0.005* 1.17 (0.58 to 2.34) 0.66
FFP transfusion (yes/no) 2.10 (1.44 to 3.05) 0.0001* 1.98 (1.16 to 3.38) 0.01*
Cardiac surgery (yes/no) 0.21 (0.11 to 0.39) <0.0001* 0.31 (0.14 to 0.71) 0.006*
Pretransfusion hemoglobin (per g/dl) 1.02 (1.00 to 1.04) 0.04* 1.06 (1.03 to 1.09) 0.0001*
Older quartiles versus freshest quartile of maximum RBC age 1.87 (1.17 to 2.99) 0.01* 2.01 (1.07 to 3.77) 0.03*
Leukodepletion 1.12 (0.71 to 1.77) 0.61 0.88 (0.34 to 2.24) 0.78
Study site   0.12   0.30
  1. APACHE, Acute Physiology and Chronic Health Evaluation; CI, confidence interval; FFP, fresh frozen plasma; RBC, red blood cell. *Significant variable (P < 0.05).