Table. 1.

Summary of 10 proficiency testing programs on anti-blood group antibody testing of the test methods utilized

Tests Methods Proficiency testing

2016 1st 2016 2nd 2017 1st 2017 2nd 2018 1st 2018 2nd 2019 1st 2019 2nd 2020 1st 2020 2nd
Anti-A titer Tube, AHG 18 18 16 17 17 17 20 20 21 21
Tube, AHG and DTT 6 5 5 5 5 4 5 5 5 5
Tube, RT 15 17 16 17 19 20 21 20 22 25
Tube, IS 41 42 42 42 41 37 39 38 38 35
CAT, AHG 21 24 25 25 27 28 30 32 33 35
CAT, AHG and DTT 4 5 6 6 5 4 4 4 5 5
CAT, RT 7 7 12 13 12 12 13 16 15 15
Others 2 2 1 1 1 1 1 1 1 1
Total 114 120 123 126 127 123 133 136 140 142
Anti-B titer Tube, AHG 18 18 16 17 17 17 20 20 21 21
Tube, AHG and DTT 6 5 5 5 5 4 5 5 5 5
Tube, RT 15 17 16 17 19 20 21 20 22 25
Tube, IS 41 42 42 42 41 37 39 38 38 35
CAT, AHG 21 24 25 25 27 28 30 32 33 35
CAT, AHG and DTT 4 5 6 6 5 4 4 4 5 5
CAT, RT 7 7 12 13 12 12 13 16 15 15
Others 2 2 1 1 1 1 1 1 1 1
Total 114 120 123 126 127 123 133 136 140 142

Abbreviations: AHG, anti-human globulin; DTT, dithiothreitol; RT, room temperature; IS, immediate spin technique; CAT, column agglutination technique.

Lab Med Qual Assur 2022;44:48~54 https://doi.org/10.15263/jlmqa.2022.44.1.48
© Lab Med Qual Assur