Anaemia has been defined by the World Health Organization as a haemoglobin level < 130 g/L in males and < 120 g/L in females. In critically ill patients in intensive care, anaemia is commonly present, and a number of studies have assessed the association of anaemia with adverse outcomes. However, no studies were identified that assessed the association between anaemia and adverse outcomes in patients with critical bleeding requiring massive transfusion. It is unlikely that the effects of anaemia will be able to be independently assessed in this group of patients.

Evidence statement

No studies were identified that ssessed the association of anaemia with adverse outcomes that confined their analysis to patients with critical bleeding requiring massive transfusion. NA NA NA NA NA

Practice points