Treatment | IBTR number at 5 years | Risk of recurrence at 5 years | IBTR number at 10 years | Risk of recurrence at 10 years | Log-rank test p value |
 IOERT | 1 | 0.8% | 3 | 4.3% | 0.493 |
 EBRT | 4 | 4.2% | 1 | 5.3% | |
Treatment | Out-field LR number at 5 years | Risk of recurrence at 5 years | Out-field LR number at 10 years | Risk of recurrence at 10 years | Log-rank test p value |
 IOERT | 6 | 4.7% | 9 | 7.9% | 0.611 |
 EBRT | 5 | 5.2% | 9 | 10.3% |