From: The importance of margins status after breast conservative surgery and radiotherapy in node positive patients: a follow-up of 10–15 years
Margins -ve
Margins +ve
P value
N (312)
267
45
LR (at 10 years)
33 (12%)
8 (18%)
p < 0.13
10 years survival
58 %
47 %
P < 0.14