Table 3. The relationship between rs550057 genotype and number of A-type blood alleles estimated from imputation.
| Number of A-type blood alleles | ABO genotypea | n |
rs550057 |
||
|---|---|---|---|---|---|
| T/T | C/T | C/C | |||
| 2 | AA | 243 | 232 | 11 | 0 |
| (100%) | (0.9%) | (0%) | |||
| 1 | AO | 880 | 0 | 1152 | 29 |
| AB | 301 | (0%) | (98.9%) | (1.8%) | |
| 0 | OO | 934 | 0 | 2 | 1553 |
| BO | 549 | (0%) | (0.2%) | (98.2%) | |
| BB | 72 | ||||
| Total | 233 | 1,164 | 1,580 | ||
Each figure in parentheses indicates the percentage of subjects in each category with the A-type blood allele relative to the number of subjects with each genotype at rs550057.
The blood type was estimated from the genotypes at two tag-SNPs, rs8176746 and rs72238104, which are responsible for the B- and O-type blood alleles, respectively. The ABO blood genotype was categorized by the number of A-type blood alleles.