Table 2 Regional recurrence, distant recurrence and IBTR analyzed by operation methods.

From: Omitting radiotherapy is safe in breast cancer patients ≥ 70 years old after breast-conserving surgery without axillary lymph node operation

 

Total

BCSNR

Other operations

P value

Regional recurrence

31 (6.4%)

21 (7.0%)

10 (5.6%)

0.70

Distant recurrence

13 (2.7%)

7 (2.3%)

6 (3.4%)

0.57

IBTR

17 (3.5%)

16 (5.3%)

1 (0.6%)

0.005

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