TABLE 3. Contraceptive efficacy of diaphragms.
|
Date |
Country |
No. Women |
12 Month Pregnancy Rate |
|
1973 |
USA |
1186 |
23.0 |
|
1976 |
USA |
2168 |
1.9 - 2.2 |
|
1982 |
USA |
368 |
18.6 |
|
1982 |
UK |
4217 |
1.9 |
|
1983 |
USA |
721 |
12.5 (randomized trial with sponge) |
|
1989 |
Israel* |
85 |
3.2 |
* 24 month rates; ‘highly motivated women
Edited by Aldo Campana,