Average Age of Resuscitation Blood Products Is not Associated With In-Hospital Mortality Among Trauma Patients: A Retrospective Cohort Study.

Introduction: Transfusion of packed red blood cells (PRBC) or low-titer group O whole blood (LTOWB) has become standard practice in trauma patients with significant blood loss. As blood ages, it undergoes metabolic and structural changes. This study aimed to test the association between age of PRBC/LTOWB and mortality among adult trauma patients.