Number (%) of participants in the proficiency tests for RhD typing in 2022
| Trial | Specimen | Total | Negative | Variant | Positive | Intended response |
|---|---|---|---|---|---|---|
| 1st | BB-22-01 | 894 (100.0) | 1 (0.1) | 0 | 893 (99.9) | Positive |
| BB-22-02 | 894 (100.0) | 1 (0.1) | 0 | 893 (99.9) | Positive | |
| BB-22-03 | 894 (100.0) | 2 (0.2) | 0 | 892 (99.8) | Positive | |
| 2nd | BB-22-07 | 902 (100.0) | 3 (0.3) | 0 | 899 (99.7) | Positive |
| BB-22-08 | 902 (100.0) | 4 (0.4) | 0 | 898 (99.6) | Positive | |
| BB-22-09 | 902 (100.0) | 3 (0.3) | 0 | 899 (99.7) | Positive |