Positivity (%) for phenotypes of Kell blood group antigen in the Korea group, East Asia group, and ‘Others’
| Antigenphenotype expression | Korean, % (N=164) | East Asia, % (N=199) | ‘Others’, % (N=124) | |
|---|---|---|---|---|
| K (KEL:1) | 0.0 | 0.0 | 4.0 | 0.0006 |
| k (KEL:2) | 100.0 | 100.0 | 100.0 | >0.05 |
| Kpa (KEL:3) | 0.0 | 0.0 | 0.0 | >0.05 |
| Kpb (KEL:4) | 100.0 | 100.0 | 100.0 | >0.05 |
*A Korean group (both parents born in Korea and of Korean ethnicity), an East Asia group (at least one parent born in East Asia and of non-Korean ethnicity), and a group of ‘Others’ (at least one parent born in America, Europe, South Asia, or other countries, and of non-Korean ethnicity).