Table 2 In-breast true recurrence (IBTR) and out-field local recurrence (LR) at 5 and 10 years

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%