Table 1.
Correlation of CGCG (−695~-692) methylaton with case characteristics
| Case (n) | Positve (n) | Negative (n) | P | |
|---|---|---|---|---|
| Sample |
|
|
|
|
| Cancer tissue |
73 |
59 |
14 |
P<0.01 |
| Paired normal tissue |
73 |
13 |
60 |
|
| Age at surgery |
|
|
|
|
| <60 |
35 |
28 |
7 |
0.864 |
| >60 |
38 |
31 |
7 |
|
| Gender |
|
|
|
|
| Male |
58 |
47 |
11 |
0.928 |
| Female |
15 |
12 |
3 |
|
| Histological classification |
|
|
|
|
| Poorly differentiated |
49 |
46 |
3 |
P<0.01 |
| Well differentiated |
24 |
13 |
11 |
|
| T classification |
|
|
|
|
| T1 |
13 |
10 |
3 |
0.980 |
| T2 |
26 |
21 |
5 |
|
| T3 |
28 |
23 |
5 |
|
| T4 |
6 |
5 |
1 |
|
| Lymph node metastasis |
|
|
|
|
| Negative |
55 |
44 |
11 |
0.755 |
| Positive |
18 |
15 |
3 |
|
| Distant metastasis |
|
|
|
|
| Negative |
69 |
56 |
13 |
0.761 |
| Positive |
4 |
3 |
1 |
|
| Clinical stage |
|
|
|
|
| I |
13 |
9 |
4 |
0.533 |
| II |
22 |
17 |
5 |
|
| III |
30 |
26 |
4 |
|
| IV | 8 | 7 | 1 |