Journal of Laboratory Medicine and Quality Assurance

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Table. 6.

Table. 6.

Number (%) of participants in the proficiency testing for weak D test in 2018

Trial (specimen)1 (BGS-18-03)2 (BGS-18-06)


RhDWeak DRhDWeak D
Number207208205206
Negative150 (72.5)*3 (1.4)203 (99.0)*131 (63.6)
±32 (15.5)*-1 (0.5)*23 (11.2)
1+18 (8.7)*19 (9.1)-39 (18.9)
2+7 (3.4)*54 (26.0)1 (0.5)*11 (5.3)
3+-76 (63.5)-2 (1.0)
4+-52 (25.0)--
Not done-4 (1.9)--
D positive2 (1.0)3 (1.4)*
D variant169 (80.9)72 (34.8)*
D negative38 (18.2)132 (63.8)*

Values are presented as number (%), unless otherwise stated.

Not graded due to lack of participants’ consensus or participants’ consensus different from the intention.

Unacceptable responses for weak D testing.

J Lab Med Qual Assur 2019;41:65-74 https://doi.org/10.15263/jlmqa.2019.41.2.65
© 2019 J Lab Med Qual Assur