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Invasive disease-free survival events
| Event | Conventional (n = 41) | Hypofractionation (n = 41) |
|---|---|---|
| Recurrence1, n (%) | 4 (9.8%) | 3 (7.3%) |
| Invasive IBTR | 0 | 1 (2.4%) |
| Regional | 0 | 1 (2.4%) |
| Distant | 4 (9.8%) | 3 (7.3%) |
| Contralateral invasive breast cancer | 0 | 0 |
| Second primary invasive cancer | 0 | 0 |
| Death without progression | 0 | 1 (2.4%) |
First recurrence events
