From: Future possibilities in the prevention of breast cancer: Luteinizing hormone-releasing hormone agonists
Cycle number
Number of days/ 28-day cycle (mean [standard error])
Percentage of days
1-4
0.92 (0.28)
3.3
5-8
1.4 (0.37)
4.9
9-12
1.0 (0.38)
3.7
13-16
0.74 (0.38)
2.6
17-20
1.4 (0.45)
21-24
1.9 (0.91)
6.8