Demographic and Baseline Clinical Characteristics of Preprocessed Data
| Variable | TCGA HNSCC data (n = 490) | Available data |
| Sex | 490 | |
| Female:male | 132:358 (26.9%:73.1%) | |
| Age (y) | 61.5 ± 12.0 (20.0–90.1) | 489 |
| Smoking | 490 | |
| Never | 211 (43.1%) | |
| Ever | 279 (56.9%) | |
| Alcohol | 479 | |
| Never | 154 (32.2%) | |
| Ever | 325 (67.8%) | |
| Stage | 420 | |
| 1 | 24 (5.7%) | |
| 2 | 67 (16.0%) | |
| 3 | 77 (18.3%) | |
| 4a | 240 (57.2%) | |
| 4b | 11 (2.6%) | |
| 4c | 1 (0.2%) | |
| Status | 211:279 (43.1%:56.9%) | 490 |
| Survival time (mo) | 21.9 (0.1–213.9) | 489 |