Table 1.
Characteristics of TCGA HNSCC patients
| Characteristics | All | Afr-Amr | Caucasian |
|---|---|---|---|
| N | 316 | 30 | 286 |
| Age | 61.56±11.5 | 58±7.74 | 61.94±11.8 |
| Gender | |||
| Male | 226 | 24 (80.0%) | 202 (70.6%) |
| Female | 90 | 6 (20.0%) | 84 (29.4%) |
| Tumor site | |||
| Hypopharynx | 5 | 1 (3.3%) | 4 (1.4%) |
| Larynx | 81 | 11 (36.7%) | 70 (24.5%) |
| Oral cavitya | 230 | 18 (60.0%) | 212 (74.1%) |
| Smoking status | |||
| Current smoker | 115 | 16 (53.3%) | 99 (34.6%) |
| Ex-smoker | 128 | 9 (30.0%) | 119 (41.6%) |
| Never-smoker | 64 | 2 (6.7%) | 62 (21.7%) |
| Unknown | 9 | 3 (10.0%) | 6 (2.1%) |
| Pathologic_stage | |||
| Stage_I | 15 | 1 (3.3%) | 14 (4.9%) |
| Stage_II | 47 | 1 (3.3%) | 46 (16.1%) |
| Stage_III | 49 | 3 (10.0%) | 46 (16.1%) |
| Stage_IV | 177 | 22 (73.3%) | 155 (54.2%) |
| Unknown | 28 | 3 (10.0%) | 25 (8.7%) |
a
Oral cavity includes Alveolar ridge, Buccal mucosa, Floor of mouth, and Oral tongue.