Table 1. Cohort Demographic and Clinical Characteristics.
| Characteristic | No. (%) |
|---|---|
| Age, mean (SD), y | 60.5 (8.7) |
| Follow-up, median (IQR), y | 4.5 (3.8-5.6) |
| Sex | |
| Male | 201 (86.3) |
| Female | 32 (13.7) |
| Race/ethnicity | |
| White | 189 (81.1) |
| Black | 19 (18.2) |
| Hispanic | 14 (6.0) |
| Asian | 10 (4.3) |
| Unknown/other | 1 (0.4) |
| Smoking status | |
| Never | 115 (49.3) |
| Current | 34 (14.6) |
| Past | 75 (32.2) |
| Second-hand | 3 (1.3) |
| Unknown | 6 (2.6) |
| Cancer site | |
| Palatine tonsil | 141 (60.5) |
| Tongue base | 87 (37.3) |
| Other | 5 (2.1) |
| AJCC 8 | |
| Stage I | 154 (66.1) |
| Stage II | 61 (26.2) |
| Stage III | 18 (7.7) |
| Stage IV | 0 |
| Initial curative treatment | |
| Definitive concurrent chemoradiotherapy | 159 (68.2) |
| Definitive radiotherapy | 10 (4.3) |
| Surgery | |
| Alone | 16 (6.9) |
| With adjuvant radiotherapy | 29 (12.4) |
| With adjuvant chemoradiotherapy | 19 (8.2) |
Abbreviations: AJCC 8, AJCC Cancer Staging Manual 8th edition; IQR, interquartile range.