Table 1 Clinical characteristics of two clusters
Characteristic | No (%) | P value | |
|---|---|---|---|
Cluster.1 (N = 219) | Cluster.2 (N = 179) |  | |
Age | |||
  < 65 | 72 (18.1%) | 77 (19.3%) |  |
  >  = 65 | 147 (36.9%) | 102 (25.6%) | 0.048 * |
Gender | |||
 Female | 63 (15.8%) | 39 (9.8%) |  |
 Male | 156 (39.2%) | 140 (35.2%) | 0.134 |
Stage | |||
 Stage I-II | 45 (11.3%) | 83 (20.9%) |  |
 Stage III-IV | 174 (43.7%) | 96 (24.1%) |  < 0.001 *** |
T stage | |||
 T0-T2 | 47 (11.8%) | 72 (18.1%) |  |
 T3-T4 | 172 (43.2%) | 107 (26.9%) |  < 0.001 *** |
Lymph node metastasis | |||
 No | 117 (32.9%) | 114 (32%) |  |
 Yes | 88 (24.7%) | 37 (10.4%) |  < 0.001 *** |
Distant metastasis | |||
 No | 77 (37.6%) | 117 (57.1%) |  |
 Yes | 7 (3.4%) | 4 (2%) | 0.129 |