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Time for recurrence of the seven recurrent head and neck SCCs, and thickness (level of invasion) of 78 SCCs
| Time for recurrence | N | % | |
|---|---|---|---|
| Less than 1 year | 3 | 42.9 | |
| Between 1 and 2 years | 2 | 28.6 | |
| Between 2 and 3 years | 1 | 14.3 | |
| Between 3 and 4 years | - | - | |
| Between 4 and 5 years | 1 | 14.3 | |
| More than 5 years | - | - | |
| Tumor thickness (mm) | |||
| <1 | 5 | 6.4 | |
| 1-2 | 15 | 19.2 | |
| 2-3 | 17 | 21.8 | |
| 3-4 | 18 | 23.1 | |
| 4-5 | 6 | 7.7 | |
| 5-6 | 7 | 9.0 | |
| 6-7 | - | - | |
| > or = 7 | 10 | 12.8 | |
