Table 2 The demographic characteristics of patients with different methylenetetrahydrofolate reductase gene types
|  | CC | CT | TT | χ2/F | p value |
|---|---|---|---|---|---|
N (%) | 828 (36.1) | 1058 (46.0) | 410 (17.9) | NA | NA |
Men (%) | 411 (49.6) | 488 (46.1) | 198 (48.3) | 2.35 | 0.31 |
Age, mean ± SD, y | 69.46 ± 8.19 | 69.14 ± 8.18 | 67.77 ± 7.55 | 6.205 |  < 0.01 |
Smoking, n, (%) | 142 (17.1) | 214 (20.2) | 84 (20.5) | 3.404 | 0.18 |
Diabetes, n, (%) | 144 (17.4) | 179 (16.9) | 62 (15.1) | 1.04 | 0.59 |
Hcy, μmol/L mean ± SD | 13.62 ± 5.20 | 14.28 ± 5.63 | 18.96 ± 13.48 | 75.04 |  < 0.01 |