Table 4. Two-variant DAT haplotype frequency distributions, by race.
| Haplotype |
Caucasians |
African Americans |
||||
|---|---|---|---|---|---|---|
| All (N=143) | Cases (N=76) | Controls (N=67) | All (N=81) | Cases (N=50) | Controls (N=31) | |
| 11 (6C) | 0.63 | 0.63 | 0.63 | 0.32 | 0.27 | 0.33 |
| 12 (6T) | 0.13 | 0.12 | 0.13 | 0.03 | 0.02 | 0.10 |
| 21 (5C) | 0.23 | 0.25 | 0.20 | 0.53 | 0.52 | 0.58 |
| 22 (5T) | 0.01 | 0 | 0.04 | 0.12 | 0.19 | 0 |
Haplotypes of DAT rs3836790 (intron8 5/6-repeat) and DAT rs27072 (3′UTR) were estimated using the EM algorithm, stratified by race, then by case-control status.