Factors | Methylated (N = 77) | Non-methylated (N = 35) | P value |
---|---|---|---|
Age (mean ± SD) | 64.44 ± 1.00 | 61.81 ± 1.86 | 0.182 |
Gender | |||
 Male | 50 | 22 | 0.879 |
 Female | 27 | 13 |  |
Tumor sizes | |||
  ≤ 5 cm | 35 | 26 | 0.005 |
  > 5 cm | 42 | 9 |  |
Depth of invasion | |||
 T1+ T2 | 17 | 2 | 0.032 |
 T3+ T4 | 60 | 33 |  |
Lymphnode metastasis | |||
 N0 | 22 | 7 | 0.808 |
 N1 | 23 | 12 |  |
 N2 | 17 | 9 |  |
 N3 | 15 | 7 |  |
Metastasis | |||
 M0 | 67 | 29 | 0.560 |
 M1 | 10 | 6 |  |
TNM stages | |||
 I | 9 | 2 | 0.687 |
 II | 19 | 11 |  |
 III | 38 | 16 |  |
 IV | 11 | 6 |  |