TABLE 1.
Clinical characteristics of the HNSC patients (from TCGA).
| Characteristic | Levels | Overall |
|---|---|---|
| N | 502 | |
| T stage, n (%) | T1 | 33 (6.8%) |
| T2 | 144 (29.6%) | |
| T3 | 131 (26.9%) | |
| T4 | 179 (36.8%) | |
| N stage, n (%) | N0 | 239 (49.8%) |
| N1 | 80 (16.7%) | |
| N2 | 154 (32.1%) | |
| N3 | 7 (1.5%) | |
| M stage, n (%) | M0 | 472 (99%) |
| M1 | 5 (1%) | |
| Clinical stage, n (%) | Stage I | 19 (3.9%) |
| Stage II | 95 (19.5%) | |
| Stage III | 102 (20.9%) | |
| Stage IV | 272 (55.7%) | |
| Gender, n (%) | Female | 134 (26.7%) |
| Male | 368 (73.3%) | |
| Race, n (%) | Asian | 10 (2.1%) |
| Black or African American | 47 (9.7%) | |
| White | 428 (88.2%) | |
| Age, n (%) | <=60 | 245 (48.9%) |
| >60 | 256 (51.1%) | |
| Histologic grade, n (%) | G1 | 62 (12.8%) |
| G2 | 300 (62.1%) | |
| G3 | 119 (24.6%) | |
| G4 | 2 (0.4%) | |
| Smoker, n (%) | No | 111 (22.6%) |
| Yes | 381 (77.4%) | |
| Lymphovascular invasion, n (%) | No | 219 (64.2%) |
| Yes | 122 (35.8%) | |
| Lymph node neck dissection, n (%) | No | 90 (18%) |
| Yes | 409 (82%) | |
| OS event, n (%) | Alive | 284 (56.6%) |
| Dead | 218 (43.4%) | |
| DSS event, n (%) | Alive | 347 (72.7%) |
| Dead | 130 (27.3%) | |
| PFI event, n (%) | Alive | 308 (61.4%) |
| Dead | 194 (38.6%) |
DSS, disease-specific survival; PFI, progression-free interval.