Number (%) of participants in proficiency tests for RhD typing in 2019
| Trial | Specimen | Total (%) | Negative (%) | Variant (%) | Positive (%) | Intended response |
|---|---|---|---|---|---|---|
| 1st | BB-19-01 | 863 (100) | 861 (99.8) | 0 | 2 (0.2) | Negative |
| BB-19-02 | 863 (100) | 0 | 0 | 863 (100) | Positive | |
| BB-19-03 | 863 (100) | 0 | 0 | 863 (100) | Positive | |
| 2nd | BB-19-07 | 867 (100) | 0 | 0 | 867 (100) | Positive |
| BB-19-08 | 867 (100) | 2 (0.2) | 0 | 865 (99.8) | Positive | |
| BB-19-09 | 867 (100) | 865 (99.8) | 1 (0.1) | 1 (0.1) | Negative |