highly significantP<0.001
Patients with an acute transfusion reaction were statistically older (median age = 41.2 ± 11.2 years; P < 0.0001) than their partners without a minor or major acute transfusion reaction (average age = 21.6 ± 3.6 years) ( Figure 5 ). Transfusion Days and Acute Transfusion Reaction There was a highly significant association (P<0.001) between the rates of acute transfusion reaction and the days when blood transfusions were performed during the week in the form of an exponential curve.