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Table 4 Factors affecting total transfusion amounts

From: Transfusion characteristics and hemostatic conditions in octogenarians undergoing emergency surgery for acute aortic dissection: a retrospective study

  Coefficient P value 95% confidence interval
CPB duration (min) 1.545 < 0.001 13 to 19
Preoperative hemoglobin concentration (g/dL) − 335 < 0.001 − 499 to − 220
Age ≥ 80 years 768 0.044 1932 to 4962
  1. CPB cardiopulmonary bypass