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Freedom from recurrence rates by tumor location.
| Group | 2-Year Freedom from Recurrence | 4-Year Freedom from Recurrence | 6-Year Freedom from Recurrence |
|---|---|---|---|
| Overall | 8044 (99.68) | 2835 (99.54) | 395 (99.54) |
| Tumor on head or neck | 4887 (99.67) | 1624 (99.53) | 194 (99.53) |
| Tumor not on head or neck | 3157 (99.69) | 1211 (99.56) | 201 (99.56) |
All data presented as n (%).
