Table 1 The clinical characteristics between cluster 1 and cluster 2.
Characteristic | Cluster 1 | Cluster 2 | P value |
|---|---|---|---|
Age | 0.025 | ||
 ≤ 65 | 195 (52.8%) | 62 (41.1%) |  |
 > 65 | 174 (47.2%) | 89 (58.9%) |  |
 Unknown | 11 (2.9%) | 8 (5%) |  |
Gender | 0.004 | ||
 Female | 188 (49.5%) | 101 (63.5%) |  |
 Male | 192 (50.5%) | 58 (36.5%) |  |
T stage | 0.276 | ||
 T1 | 116 (30.6%) | 60 (38.2%) |  |
 T2 | 214 (56.5%) | 78 (49.7%) |  |
 T3 | 36 (9.5%) | 13 (8.3%) |  |
 T4 | 13 (3.4%) | 6 (3.8%) |  |
 Unknown | 1 (0.3%) | 2 (1.3%) |  |
N stage | 0.047 | ||
 N0 | 247 (67.3%) | 103 (66%) |  |
 N1 | 59 (16.1%) | 38 (24.4%) |  |
 N2 | 60 (16.3%) | 14 (9%) |  |
 N3 | 1 (0.3%) | 1 (0.6%) |  |
 Unknown | 13 (3.4%) | 3 (1.9%) |  |
M stage | 0.431 | ||
 M0 | 251 (93%) | 114 (95%) |  |
 M1 | 19 (7%) | 6 (5%) |  |
 Unknown | 110 (28.9%) | 39 (24.5%) |  |
Pathological stage | 0.426 | ||
 I | 209 (55.9%) | 87 (55.4%) |  |
 II | 81 (21.7%) | 44 (28%) |  |
 III | 64 (17.1%) | 20 (12.7%) |  |
 IV | 20 (5.3%) | 6 (3.8%) |  |
 Unknown | 6 (1.6%) | 2 (1.3%) |  |
