From: Future possibilities in the prevention of breast cancer: Breast cancer prevention trials
Cancers
Trial
Total randomized
Median follow up (months)
Total
Tamoxifen/raloxifene
Placebo
OR
RMH [5*]
2 471
70
34
36
0.94
NSABP [3*]
13 388
57
368
124
244
0.51
Italian [6*]
5 408
46
41
19 (11)â€
22(19)‡
0.91
IBIS*
6 037
30
88
-*
MORE [7*]
7 705
40
54
22/2‡
32
0.35