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Results Low risk RCT
03/01/13
Remarks
F-up (yr)
BCS BCS + RT
EORTC
10853
15
31% 18%
NSABP 17
17
35% 20%
SweDCIS
20
32% 20%
UK/NAZ
+/ - Tamoxifen
12
17% 2.6%
RTOG9804
Low risk:
Grade 1-2,
tumorsize < 2.5 cm,
margin > 3 mm
7
6.7% 0.9%
NNT:7.7
NNT:6.6
NNT:8.3
NNT:6.9
NNT: 17.2