The donut chart shows the breakdown of types of adverse reactions attributed to blood transfusions found in 3178 transfusion reports from 2202 unique patients. BTAR: Blood transfusion adverse reaction, ATR: Allergic transfusion reaction, FNHTR: Febrile non-hemolytic transfusion reaction, TACO: Transfusion- associated circulatory overload, DSTR: Delayed serologic transfusion reaction, DHTR: Delayed hemolytic transfusion reaction, HTR: Hypotensive transfusion reaction, TAD: Transfusion-associated dyspnea, AHTR: Acute hemolytic transfusion reaction, TTI: Transfusion-transmitted infection, TRALI: Transfusion-related acute lung injury, PTP: Post transfusion purpura.