|
|
|
| Proportion
of Pregnancies Prevented by |
||
| Levonorgestrel
vs. Yupze, by Timing of |
||
| Treatment |
||
| 95% |
|
|
| Levonorgestrel |
|
| Yuzpe |
|
| 85% |
| 77% |
| 58% |
| 36% |
| 31% |
| Timing of
Treatment (hours) |
|
|
| Task Force
on Postovulatory Methods of Fertility Regulation. |
|
| Lancet.
1998;352:428-433. |
|