Patient Characteristics at Baseline
| Parameter | Value |
| Sex | |
| Male | 33 (73) |
| Female | 12 (27) |
| Age (y) | 39–91 |
| Range | |
| Mean ± SD | 62.1 ± 10.1 |
| Pack-years | |
| Range | 0–100 |
| Mean ± SD | 36.8 ± 24.9 |
| Site | |
| Oropharynx | 16 (35.5) |
| Oral cavity | 29 (64.5) |
| AJCC stage | |
| I | 4 (9) |
| II | 8 (18) |
| III | 5 (11) |
| IV | 28 (62) |
| Tumor grade and histology | |
| Well-differentiated | 8 (18) |
| Moderately differentiated | 27 (60) |
| Poorly differentiated | 8 (18) |
| Unknown | 2 (4) |
| Months of follow-up | |
| Range | 1.7–46.5 |
| Mean ± SD | 23.7 ± 11.6 |
| Disease progression | |
| No | 33 (73) |
| Yes | 12 (27) |
| OS | |
| Dead | 16 (36) |
| Alive | 29 (64) |
Data are number of patients, with percentage in parentheses, unless otherwise indicated.