Trial

RT

Placebo

N

Median F/U (yr)

Local Recurrence Rate (%)

Contralateral Breast Cancer Rate (%)

Breast Cancer Mortality (%)

Overall Death (%)

NSABP B-24 [31]

RT

Placebo

900

13.6

16.6

8.1

2.7

14.4

Tamoxifen

899

13.6

13.2

4.9

2.3

12.2

UK/ANZ DCIS [26]

No RT

Placebo

544

12.7

11.6

2.8

2.0

10

Tamoxifen

567

12.7

8.7

1.4

3.0

10

RT

Placebo

267

12.7

4.0

1.7

1.0

10

Tamoxifen

316

12.7

3.4

1.5

2.0

14