From: Human genetic selection on the MTHFR 677C>T polymorphism
C677T-MTHFR Genotype-Allele | Frequencies by date of birth | |||||
---|---|---|---|---|---|---|
82–84 | 85–87 | 88–90 | ||||
Fetal Group | (n = 110) | (n = 129) | (n = 105) | |||
% | n | % | n | % | n | |
CC | 0.073** | 8 | 0.008** | 1 | 0.019** | 2 |
CT | 0.727** | 80 | 0.705** | 91 | 0.6*# | 63 |
TT | 0.2 | 22 | 0.287 | 37 | 0.381## | 40 |
C allele | 0.436** | 96 | 0.36** | 93 | 0.319**# | 67 |
T allele | 0.564** | 124 | 0.64** | 165 | 0.681**# | 143 |
Control Group | (n = 88) | (n = 93) | (n = 95) | |||
% | n | % | n | % | n | |
CC | 0.33 | 29 | 0.301 | 28 | 0.305 | 29 |
CT | 0.477 | 42 | 0.452 | 42 | 0.421 | 40 |
TT | 0.193 | 17 | 0.247 | 23 | 0.274 | 26 |
C allele | 0.568 | 100 | 0.527 | 98 | 0.516 | 98 |
T allele | 0.432 | 76 | 0.473 | 88 | 0.484 | 92 |