Table 4 Distribution of lymph node metastases by pathological T stage
T stage | Total cases | Metastatic cases | Metastasis rate (%) | N1 (%) | N2 (%) | N3 (%) |
|---|---|---|---|---|---|---|
T1 | 9 | 1 | 11.1 | 11.1 (1/9) | 0 (0/9) | 0 (0/9) |
T2 | 21 | 3 | 14.3 | 14.3 (3/21) | 0 (0/21) | 0 (0/21) |
T3 | 277 | 117 | 42.2 | 38.2 (106/277) | 11.6 (32/277) | 7.9 (22/277) |
T4 | 83 | 58 | 69.9 | 63.9 (53/83) | 26.5 (22/83) | 25.3 (21/83) |
χ2 | / | / | 33.56 | 28.04 | 17.21 | 23.6 |
P value | / | / | 0.000 | 0.000 | 0.000 | 0.000 |