Table 2.
Distribution of ABO blood groups in the study population according to ethnicity
| Ethnicity | Number | ABO phenotype (%) | |||
| A | B | AB | O | ||
| Han | 3 473 527 | 1 065 599 (30.7) | 1 021 051 (29.4) | 338 230 (9.7) | 1 048 647 (30.2) |
| Uygur | 129 454 | 39 745 (30.7) | 39 857 (30.8) | 13 727 (10.6)* | 36 125 (27.9) |
| Zhuang | 47 305 | 11 917 (25.2) | 13 006 (27.5) | 2602 (5.5) | 19 780 (41.8)* |
| Manchu | 33 182 | 8438 (25.4) | 11 180 (33.7)* | 3132 (9.4) | 10 432 (31.4) |
| Miao | 27 637 | 7847 (28.4) | 7435 (26.9) | 1932 (7.0) | 10 423 (37.7)* |
| Yi | 19 659 | 6675 (34.0)* | 5191 (26.4) | 1778 (9.0) | 6015 (30.6) |
| Mongolian | 18 996 | 4983 (26.2) | 6320 (33.3)* | 1840 (9.7) | 5853 (30.8) |
| Hui | 11 471 | 3411 (29.7) | 3429 (29.9) | 1134 (9.9) | 3497 (30.5) |
| Others | 70 803 | 21 550 (30.4) | 19 963 (28.2) | 5887 (8.3) | 23 403 (33.1) |
| Total | 3 832 034 | 1 170 165 (30.5) | 1 127 432 (29.4) | 370 262 (9.7) | 1 164 175 (30.4) |
*Compared with the other ethnic groups, the proportions of group A (B, AB or O) were all significantly higher (P<0.001).