Table 1.
Baseline patient and tumor characteristics
| Characteristic | Number (%) |
|---|---|
| Age in years | |
| Median (range) | 55 (50–78) |
| Gender | |
| Male | 65 (89) |
| Female | 8 (11) |
| Tumor Location | |
| Tonsil | 35 (48) |
| Base of tongue | 38 (52) |
| Gross tumor volume, mL | |
| Median (range) | 110 (19–378) |
| T stage | |
| 1 | 9 (12) |
| 2 | 29 (40) |
| 3 | 17 (23) |
| 4 | 18 (25) |
| N stage | |
| 0 | 6 (8) |
| 1 | 6 (8) |
| 2 | 55 (75) |
| 3 | 6 (8) |
| AJCC stage | |
| III | 9 (12) |
| IVA | 58 (80) |
| IVB | 6 (8) |
| Smoking status | |
| Never* | 26 (36) |
| Previous | 31 (42) |
| Current | 16 (22) |
Abbreviations: RT=radiation therapy, AJCC=American Joint Committee on Cancer
*
Patients who never smoked reported less than ten pack-year cigarettes or equivalent life-time tobacco use.