Table 1.
Clinical characteristics of TCGA SCCHNs patients
| Parameters | No. of patients | Percentage |
|---|---|---|
| Age | ||
| < 59 | 234 | 44.8 |
| ≥ 59 | 287 | 55.0 |
| NA | 1 | 0.2 |
| Gender | ||
| Female | 137 | 26.2 |
| Male | 385 | 738 |
| Alcohol | ||
| Yes | 348 | 66.7 |
| No | 163 | 31.2 |
| NA | 11 | 2.1 |
| Smoking | ||
| Yes | 297 | 56.9 |
| No | 213 | 40.8 |
| NA | 12 | 2.3 |
| Histological grade | ||
| G1 + G2 | 367 | 70.3 |
| G3 + G4 | 132 | 25.3 |
| Gx | 18 | 3.4 |
| NA | 5 | 1.0 |
| Stage | ||
| I + II | 118 | 22.6 |
| III + IV | 390 | 74.7 |
| NA | 14 | 2.7 |
| T classification | ||
| T1 + T2 | 186 | 35.6 |
| T3 + T4 | 274 | 52.5 |
| Tx | 39 | 7.5 |
| NA | 23 | 4.4 |
| Lymph node metastasis | ||
| N0 | 176 | 33.7 |
| N+ | 246 | 47.1 |
| NX | 75 | 14.4 |
| NA | 25 | 4.8 |
| M classification | ||
| M0 | 188 | 36.0 |
| M1 | 1 | 0.2 |
| MX | 62 | 11.9 |
| NA | 271 | 51.9 |
*P < 0.05 was considered to be statistical significance