Laboratory Medicine and Quality Assurance

Table. 4.

Results of proficiency tests for the ANA pattern

Trial No. of partici­pants Specimen Negative Positive
Speckled Homogenous Centro­mere Cyto­plasmic Other
2018, 1st 74 IA1-18-01 0 74 (100.0) 0 0 0 0
IA1-18-02 74 (100.0) 0 0 0 0 0
IA1-18-03 0 0 74 (100.0) 0 0 0
2018, 2nd 72 IA1-18-06 1 (1.4) 0 71 (98.6) 0 0 0
IA1-18-07 72 (100.0) 0 0 0 0 0
IA1-18-08 0 71 (98.6) 0 0 0 1 (1.4)
2019, 1st 77 IA1-19-01 75 (97.4) 0 2 (2.6) 0 0 0
IA1-19-02 0 5 (6.5) 71 (92.2) 0 0 1 (1.3)
IA1-19-03 0 77 (100.0) 0 0 0 0
2019, 2nd 77 IA1-19-06 76 (98.7) 0 1 (1.3) 0 0 0
IA1-19-07 0 2 (2.6) 74 (96.1) 0 0 1 (1.3)
IA1-19-08 0 77 (100.0) 0 0 0 0

Values are presented as number (%), unless otherwise stated. The ANA pattern was an educational challenge. The most frequent responses are indicated in bold.

Abbreviation: ANA, anti-nuclear antibody.
Lab Med Qual Assur 2020;42:1~9 https://doi.org/10.15263/jlmqa.2020.42.1.1
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