Variables | n | Cumulative recurrence rate at 5-year (%) | Univariate P | Multivariate P relative risk (95% confidence interval) |
---|---|---|---|---|
Age (years) | Â | Â | 0.949 | Â |
<70 | 74 | 21.2 | Â | Â |
≥70 | 58 | 12.3 |  |  |
Sex | Â | Â | 0.609 | Â |
Male | 87 | 16.9 | Â | Â |
Female | 45 | 23.0 | Â | Â |
Lymphadenectomy | Â | Â | 0.492 | Â |
<D2 | 61 | 20.4 | Â | Â |
D2 | 71 | 18.5 | Â | Â |
Histological differentiation | Â | Â | 0.074 | Â |
G1 or G2 | 58 | 14.6 | Â | Â |
G3 or G4 | 74 | 27.9 | Â | Â |
Depth of tumor invasion | Â | Â | 0.001 | 0.023 |
pT2 or pT3 | 64 | 7.7 | Â | 1 |
pT4 | 68 | 31.2 | Â | 4.70 (1.21 to 31.28) |
Number of lymph node metastases | Â | Â | < 0.001 | 0.007 |
pN0 or pN1 | 74 | 5.0 | Â | 1 |
pN2 or pN3 | 58 | 38.1 | Â | 6.00 (1.56 to 39.83) |
Lymphatic invasion | Â | Â | 0.073 | Â |
Negative | 45 | 8.4 | Â | Â |
Positive | 87 | 24.8 | Â | Â |
Venous invasion | Â | Â | 0.122 | Â |
Negative | 84 | 14.9 | Â | Â |
Positive | 48 | 35.3 | Â | Â |