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
− 499 to − 220
Age ≥ 80 years
768
0.044
1932 to 4962