|
Factors
|
N n = 34
|
LNM(−) n = 17
|
LNM(+) N = 17
|
P-value
|
|---|
|
Gender
| | | |
0.730
|
|
Male
|
15
|
7
|
8
| |
|
Female
|
19
|
10
|
9
| |
|
Age (years old)
|
57.1 ± 11.4
|
57.5 ± 12.3
|
56.8 ± 11.2
|
0.851
|
|
Chemotherapy
| | | |
0.034*
|
|
Negative
|
27
|
16
|
11
| |
|
Positive
|
7
|
1
|
6
| |
|
Smoking
| | | |
0.287
|
|
Negative
|
30
|
14
|
16
| |
|
Positive
|
4
|
3
|
1
| |
|
Alcohol
| | | |
0.628
|
|
Negative
|
29
|
14
|
15
| |
|
Positive
|
5
|
3
|
2
| |
|
Family history
| | | |
0.628
|
|
Negative
|
31
|
15
|
16
| |
|
Positive
|
3
|
2
|
1
| |
|
Tumor size
|
38.3 ± 17.3
|
38.3 ± 17.3
|
38.3 ± 17.3
|
1.000
|
|
Tumor location
| | | |
1.000
|
|
Rectum
|
30
|
15
|
15
| |
|
Colon
|
4
|
2
|
2
| |
|
Endoscopic morphology
| | | |
0.480
|
|
I (the uplift type)
|
30
|
14
|
16
| |
|
II (the flat type)
|
1
|
1
|
0
| |
|
III (the concave type)
|
3
|
2
|
1
| |
|
Pathology
| | | |
0.504
|
|
Highly differentiated
|
3
|
2
|
1
| |
|
Medium differentiated
|
27
|
14
|
13
| |
|
Poorly differentiated
|
4
|
1
|
3
| |
|
Depth of invasion
| | | |
1.000
|
|
Mucosal layer
|
4
|
2
|
2
| |
|
Submucosal layer
|
30
|
15
|
15
| |
|
Negative
|
30
|
17
|
13
| |
|
Positive
|
4
|
0
|
4
| |
- Note: * P < 0.05, LNM(−):No lymph node metastasis, LNM(+):Lymph node metastasis
