Table 1.
Tumor primary site and percent of tumors presenting with distant metastases
| Primary site | % (N = 2525) | Percentage of disease site cohort with distant metastasesa |
|---|---|---|
| Oral cavity | 15.0 (378) | 1.4 |
| Oropharynx | 35.3 (892) | 3.2 |
| Nasopharynx | 9.7 (246) | 7.7 |
| Hypopharynx | 13.3 (335) | 6.0 |
| Glottic larynx | 11.6 (292) | 1.5 |
| Supraglottic larynx | 15.1 (382) | 3.5 |
| Total | 100.0 | 2.8 |
a
Represents the proportion of patients with tumors of each primary site presenting with distant metastases (N = 412,825 for all sites combined).