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Transfusion requirements in patients according to classification. Transfusion requirements in patients classified according to either admission Shock Index (SI; black columns) or according to the base deficit (BD)-based classification of hypovolemic shock (grey columns). (A) Percentage of patients with ≥1 blood product. (B) Percentage of patients with massive transfusion (≥10 blood units until ICU admission). n = 21,853.
