Number (%) of participants in the proficiency tests for Kidd antigen typing
| Trial (specimen) | Category | Antigen | Kidd type | ||
|---|---|---|---|---|---|
| Jk(a) | Jk(b) | ||||
| 1st (BGS-21-02) | No. of participants | 25 | 25 | Jk(a+b+) | 25 (100.0) |
| Negative | |||||
| Trace | 1 (3.8) | ||||
| 1+ | 6 (23.1) | 2 (8.0) | |||
| 2+ | 10 (38.5) | 7 (28.0) | |||
| 3+ | 4 (15.4) | 9 (36.0) | |||
| 4+ | 5 (19.2) | 7 (28.0) | |||
| 2nd (BGS-21-05) | No. of participants | 26 | 25 | Jk(a+b+) | 25 (100.0) |
| Negative | |||||
| Trace | |||||
| 1+ | 8 (30.8) | 1 (4.0) | |||
| 2+ | 10 (38.5) | 7 (28.0) | |||
| 3+ | 2 (7.7) | 10 (40.0) | |||
| 4+ | 6 (23.1) | 7 (28.0) | |||