Table 2. HNA1 genotypes in different populations.
| Genotype | Ratio 1a:1b | JPT | CHB | YRI | Ceph | UK |
|---|---|---|---|---|---|---|
| 1a | 1 | 2 | 2 | 2 | 2 | 3 |
| 1b | 0 | 0 | 1 | 3 | 3 | 3 |
| 1a1a | 1 | 10 | 6 | 9 | 4 | 5 |
| 1a1b | 0.5 | 12 | 8 | 13 | 42 | 26 |
| 1b1b | 0 | 1 | 5 | 7 | 51 | 37 |
| 1a1a1a | 1 | 2 | 1 | 0 | 0 | 0 |
| 1a1a1b | 0.66 | 0 | 4 | 0 | 1 | 2 |
| 1a1b1b | 0.33 | 3 | 4 | 0 | 4 | 0 |
| 1b1b1b | 0 | 0 | 0 | 0 | 0 | 2 |
| 1a1a1b1b | 0.5 | 0 | 1 | 0 | 2 | 1 |
| 1a1b1b1b | 0.25 | 0 | 0 | 0 | 1 | 0 |
| Mean population 1a:1b ratio |
0.66 | 0.55 | 0.50 | 0.27 | 0.30 |