Laboratory Medicine and Quality Assurance

Table. 2.

Laboratories participating in histocompatibility program from 2019 to 2022

Test items No. of labs
2019 2020 2021 2022
1st 2nd 1st 2nd 1st 2nd 1st 2nd
HLA typing*
Generic type 65 65 66 67 66 67 65 65
Allelic type 25 26 28 28 28 31 32 29
HLA crossmatching
T-CDC-Direct 45 45 43 44 44 44 43 44
T-CDC-AHG 47 47 45 47 46 46 46 46
B-CDC-Direct 22 22 21 21 23 24 24 25
T-FCMXM 33 33 31 33 33 33 33 34
B-FCMXM 23 (1) 23 22 (2) 27 (1) 26 26 27 (1) 28
HLA antibody
Screening 21 21 21 22 22 21 21 22
Phenotyping 11 10 10 10 10 10 10 11
Single antigen identification 22 22 21 24 24 24 24 25
HLA genotyping
HLA B27 typing 61 61 60 61 60 61 63 63
HLA B51 typing 28 28 28 29 29 30 30 30
HLA B58:01 typing - - - - - - - 8

Abbreviation: HLA, human leukocyte antigen.

*The number of labs estimated according to the test for HLA-A/B/DRB1 loci. †The numbers in parenthesis indicate the labs that did not respond.

Lab Med Qual Assur 2024;46:1~37 https://doi.org/10.15263/jlmqa.2024.46.1.1
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