Table 3.
Univariate and multivariate analyses of recurrence-free survival for hematogenous metastasis
| Variables | n | Cumulative recurrence rate at 5-year (%) | Univariate P | Multivariate P relative risk (95% confidence interval) |
|---|---|---|---|---|
| Age (years) |
|
|
0.309 |
|
| <70 |
74 |
27.1 |
|
|
| ≥70 |
58 |
13.5 |
|
|
| Sex |
|
|
0.505 |
|
| Male |
87 |
20.2 |
|
|
| Female |
45 |
28.3 |
|
|
| Lymphadenectomy |
|
|
0.234 |
|
| <D2 |
61 |
20.9 |
|
|
| D2 |
71 |
25.1 |
|
|
| Histological differentiation |
|
|
0.094 |
|
| G1 or G2 |
72 |
14.5 |
|
|
| G3 or G4 |
59 |
31.2 |
|
|
| Depth of tumor invasion |
|
|
0.009 |
0.708 |
| pT2 or pT3 |
64 |
13.0 |
|
1 |
| pT4 |
68 |
33.1 |
|
1.23 (0.43 to 4.08) |
| Number of lymph node metastases |
|
|
<0.001 |
<0.001 |
| pN0 or pN1 |
74 |
2.0 |
|
1 |
| pN2 or pN3 |
58 |
47.7 |
|
26.21 (3.66 to 581.73) |
| Lymphatic invasion |
|
|
0.004 |
0.982 |
| Negative |
45 |
3.3 |
|
1 |
| Positive |
87 |
32.5 |
|
1.03 (0.14 to 22.26) |
| Venous invasion |
|
|
<0.001 |
0.001 |
| Negative |
84 |
12.9 |
|
1 |
| Positive | 48 | 49.3 | 5.09 (1.89 to 14.87) |