Retrospective Study to Reduce Blood Transfusion Waste in Remote Island Healthcare Settings

Table 1

Blood transfusion standing volume preintervention and postintervention.

Periods	Blood types	Type A	Type B	Type O	Type AB
Preintervention 2015.1∼2017.12	Preintervention (unit)	4	4	4	2
Postintervention 2018.1∼2022.12	Postintervention (unit)	2	2	6	0

At Tokunoshima Tokushukai Hospital (TTH) since 2018, before (preintervention) and after (postintervention), type A and B decreased from four units to two units and type AB decreased from two units to zero units for transfusion products donated by the Japanese Red Cross Society. Conversely, type O for ABO-incompatible transfusion increased from four units to six units.