The Korean Journal of Blood Transfusion

Table. 1. Table 1

.Causes for ABO genotyping request for 265 cases

Cause of request	Requesting institution		Total, % (N)
Cause of request	External request, % (N)	Internal request, % (N)	Total, % (N)
ABO discrepancy	84.9 (225/265)	4.9 (13/265)	89.8 (238/265)
Others*	9.8 (26/265)	0.4 (1/265)	10.2 (27/265)

*Among the 27 ABO non-discrepant cases, 23 cases were requested with unknown cause, 3 cases for a family study on the ABO subgroup (a sister with cisAB allele, a mother with cisAB allele, and a daughter with AW.10 allele), and 1 case for the exact identification of the ABO blood type due to inconsistent serological results.

Korean J Blood Transfus 2023;34:12-20 https://doi.org/10.17945/kjbt.2023.34.1.12