Abstract: Objective The inventory management of whole blood and RBC components in provincial blood collection and supply institutions from 2014 to 2021 was analyzed and discussed. Methods A retrospective analysis method was used to collect the relevant data of whole blood and RBC component inventory management in provincial blood collection and supply institutions from 2014 to 2021 and conducted statistical analysis. Results The average blood inventory of whole blood and RBC per day was 2 777.0 (1 762.5, 4 240.0) U, which showed an increasing trend year by year. The average days of RBC component were 10.2 (8.1, 14.0) days and showed an increasing trend. Based on economic zone, whole blood release per 1 000 population was the highest in northeast China [0.028 8(0.018 8, 0.045 7) U], and red blood cells is the highest in central China [16.77(13.39, 18.92)U]. 47 (52.2%) of the reported data on the amount of expired RBC components were 0 U. Conclusion There are differences in the management of whole blood and RBC component blood inventory in Chinese provincial blood collection and supply institutions, and the management level needs to be further improved.

Key words: Blood inventory management, Blood inventory control, Average daily inventory, Erythrocyte component blood release per 1 000 population