Table 1. The basic information of TCGA-THCA.
| Variables | Type | Total | Test | Train | P value |
|---|---|---|---|---|---|
| Age | <=65 | 433 (85.91%) | 225 (89.29%) | 208 (82.54%) | 0.0405 |
| >65 | 71 (14.09%) | 27 (10.71%) | 44 (17.46%) | ||
| Gender | Female | 369 (73.21%) | 184 (73.02%) | 185 (73.41%) | 1 |
| Male | 135 (26.79%) | 68 (26.98%) | 67 (26.59%) | ||
| Stage | Stage I | 283 (56.15%) | 155 (61.51%) | 128 (50.79%) | 0.1161 |
| Stage II | 52 (10.32%) | 23 (9.13%) | 29 (11.51%) | ||
| Stage III | 112 (22.22%) | 49 (19.44%) | 63 (25%) | ||
| Stage IV | 55 (10.91%) | 24 (9.52%) | 31 (12.3%) | ||
| Unknow | 2 (0.4%) | 1 (0.4%) | 1 (0.4%) | ||
| T | T1 | 143 (28.37%) | 70 (27.78%) | 73 (28.97%) | 0.2742 |
| T2 | 166 (32.94%) | 85 (33.73%) | 81 (32.14%) | ||
| T3 | 170 (33.73%) | 88 (34.92%) | 82 (32.54%) | ||
| T4 | 23 (4.56%) | 7 (2.78%) | 16 (6.35%) | ||
| Unknow | 2 (0.4%) | 2 (0.79%) | 0 (0%) | ||
| M | M0 | 282 (55.95%) | 145 (57.54%) | 137 (54.37%) | 0.4656 |
| M1 | 9 (1.79%) | 3 (1.19%) | 6 (2.38%) | ||
| Unknow | 213 (42.26%) | 104 (41.27%) | 109 (43.25%) | ||
| N | N0 | 229 (45.44%) | 118 (46.83%) | 111 (44.05%) | 0.5106 |
| N1 | 225 (44.64%) | 108 (42.86%) | 117 (46.43%) | ||
| Unknow | 50 (9.92%) | 26 (10.32%) | 24 (9.52%) |