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 |