| BTS (n = 49) | ES (n = 49) | P | |
|---|---|---|---|
| Mean follow–up period (mo) | 31.7 ± 3.06 | 31.5 ± 3.32 | 0.970 |
| Overall survival (%) | |||
| At 1y | 93.8 ± 3.4 | 89.6 ± 4.4 | 0.450 |
| At 3y | 53.0 ± 8.1 | 77.2 ± 7.0 | 0.039 |
| At 5y | 30.6 ± 8.4 | 55.0 ± 12.0 | 0.025 |
| Recurrence | 25 (51.0 %) | 13 (26.5 %) | 0.013 |
| Regional recurrence | 10 (20.4 %) | 4 (8.2 %) | 0.083 |
| Distant metastasis | 15 (30.6 %) | 9 (18.4 %) | 0.159 |