MTR | MTHFR | Hearing impairment | No hearing impairment | ||
---|---|---|---|---|---|
A2756G | C677T | N | % | N | % |
 | CC | 317 | 25.7 | 915 | 74.3 |
AA | CT | 354 | 21.4 | 1297 | 78.6 |
 | TT | 77 | 15.8 | 410 | 84.2 |
 | CC | 137 | 21.5 | 501 | 78.5 |
AG | CT | 184 | 24.6 | 564 | 75.4 |
 | TT | 69 | 30.1 | 160 | 69.9 |
 | CC | 16 | 25.4 | 47 | 74.6 |
GG | CT | 10 | 13.2 | 66 | 86.8 |
 | TT | 16 | 37.2 | 27 | 62.8 |
Total N | 1180 | 22.8 | 3987 | 77.2 |