Trial

N

Median F/U (yr)

Local Recurrence NO RT (%)

Local Recurrence RT (%)

Risk Reduction (%)

p Value

NSABP B-17 [23] [28]

818

17.25

35

20

47 - 52

p < 0.001

EORTC 10853 [26]

1010

15.8

31

18

48

p < 0.001

UK/ANZ DCIS [25]

475

12.7

25

9

69

p < 0.0001

SweDCIS [27]

1046

17

27

12

37.5

p < 0.001