Table 1 Allele and genotype distributions of the brain‐derived neurotrophic factor Val66Met polymorphism in the cohort as a whole and in the two subgroups into which the cohort was broken down based on ethnicity.
| All participants (n = 59) | African‐Americans (n = 16) | Others (n = 43; 31 Caucasians, 9 Hispanics, 3 Asians) | |
|---|---|---|---|
| Allele | |||
| Val66 (G) | 102 (0.86) | 31 (0.97) | 71 (0.83) |
| Met66 (A) | 16 (0.14) | 1 (0.03) | 15 (0.17) |
| Genotype | |||
| Val66/Val66 | 46 (0.78) | 15 (0.94) | 31 (0.72) |
| Val66/Met66 | 10 (0.17) | 1 (0.06) | 9 (0.21) |
| Met66/Met66 | 3 (0.05) | 0 (0.00) | 3 (0.07) |
| Hardy–Weinberg theorem | |||
| χ2 | 3.53 | 0.03 | 2.71 |
| p Value | 0.06 | 0.857 | 0.1 |