Laboratory Medicine and Quality Assurance

Table. 8.

Number (%) of participants in proficiency tests for the direct antiglobulin test

Trial Antiglobulin Specimen No. of participants (%) Negative (%) Positive (%) Intended response
1st Polyspecific BBG-19-04 270 (100) 270 (100) 0 Negative
BBG-19-05 270 (100) 1 (0.4) 269 (99.6) Positive
BBG-19-06 270 (100) 270 (100) 0 Negative
Anti-IgG BBG-19-04 67 (100) 67 (100) 0 Negative
BBG-19-05 67 (100) 0 67 (100) Positive
BBG-19-06 67 (100) 67 (100) 0 Negative
Anti-C3d BBG-19-04 68 (100) 68 (100) 0 Negative
BBG-19-05 68 (100) 65 (95.6) 3 (4.4) Negative
BBG-19-06 68 (100) 68 (100) 0 Negative
2nd Polyspecific BBG-19-10 276 (100) 0 276 (100) Positive
BBG-19-11 275 (100) 275 (100) 0 Negative
BBG-19-12 275 (100) 275 (100) 0 Negative
Anti-IgG BBG-19-10 67 (100) 0 67 (100) Positive
BBG-19-11 67 (100) 67 (100) 0 Negative
BBG-19-12 67 (100) 67 (100) 0 Negative
Anti-C3d BBG-19-10 67 (100) 66 (98.5) 1 (1.5) Negative
BBG-19-11 67 (100) 67 (100) 0 Negative
BBG-19-12 67 (100) 67 (100) 0 Negative

Abbreviation: IgG, immunoglobulin G.

Lab Med Qual Assur 2020;42:112~120 https://doi.org/10.15263/jlmqa.2020.42.3.112
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