Table 4 Ipsilateral tumor recurrence rate stratified by age in this cohort study and EORTC study
This cohort study | EORTC study | ||||
Age, years | All n = 419 | 1993–2003 n = 163 | 2003–2010 n = 256 | No boost | Boost |
Median f/u | 9.3 y | 14.4y | 7.9y | 10.8y | |
10y IBTR rate | 8y IBTR rate | 10y IBTR rate | |||
≤ 40 | 17.1% | 25.4% | 4.0% | 34.9% | 13.5% |
41–50 | 3.7% | 6.2% | 0.0% | 12.5% | 8.7% |
51–60 | 2.4% | 2.0% | 2.8% | 7.8% | 4.9% |
≥ 61 | 1.6% | 0.0% | 2.3% | 7.3% | 3.8% |
Total | 4.0% | 5.5% | 2.2% | 10.2% | 6.2% |