Table 2.
Clinical information of the three pre-processed cohorts.
| Characteristic | Training Set (n = 318) | Entire Set (n = 424) | p value | GSE39582 (n = 536) | GSE17536 (n = 144) | |
|---|---|---|---|---|---|---|
| Age (years) | ≤60 | 96 | 131 | 0.899 | 143 | 46 |
| >60 | 222 | 293 | 393 | 98 | ||
| Survival Status | Living | 237 | 310 | 0.727 | 389 | 108 |
| Dead | 81 | 114 | 147 | 36 | ||
| Gender | female | 145 | 195 | 0.974 | 240 | 69 |
| male | 173 | 229 | 296 | 75 | ||
| pathologic_T | T1 | 6 | 10 | 0.907 | 12 | – |
| T2 | 59 | 73 | 47 | – | ||
| T3 | 221 | 293 | 349 | – | ||
| T4 | 32 | 47 | 105 | – | ||
| pathologic_N | N0 | 184 | 248 | 0.905 | 293 | – |
| N1 | 80 | 101 | 127 | |||
| N2/N3 | 54 | 75 | 92 | – | ||
| pathologic_M | M0 | 238 | 314 | 0.857 | 485 | – |
| M 1/M X | 76 | 105 | 32 | – | ||
| Tumor Stage | Stage I | 53 | 70 | 0.994 | 37 | 24 |
| Stage II | 119 | 162 | 260 | 55 | ||
| Stage III | 91 | 122 | 205 | 55 | ||
| Stage IV | 46 | 59 | 30 | 10 | ||
| Lymphatic invasion | Yes | 118 | 147 | 0.642 | – | – |
| No | 173 | 235 | – | – | ||
| Venous invasion | Yes | 67 | 88 | 1 | – | – |
| No | 214 | 279 | – | – | ||