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Percent of Women Experiencing Unintended Pregnancy within One Year
Method
|
Percentage w/ Typical Use
|
Percentage w/ Perfect Use
|
No protection | 85% | 85% |
Spermicide (foam or film) | 29% | 18% |
Withdrawal | 27% | 4% |
Condom (female) | 21% | 5% |
Cervical cap (in women who have never given birth) | 16% | 9% |
Sponge (in women who have never given birth) | 16% | 9% |
Diaphragm | 16% | 6% |
Condom (male) | 15% | 2% |
Oral contraceptives | 8% | 0.3% |
Patch | 8% | 0.3% |
Injectable Contraception |
Depo-Provera | 3% | 0.3% |
Lunelle | 3% | 0.05% |
Intrauterine Contraception |
Copper T IUD | 0.8% | 0.6% |
LNG-IUS | 0.1% | 0.1% |
Implant | 0.05% | 0.05% |
Emergency contraceptive pills: Treatment initiated within 72 hours
after unprotected sexual intercourse reduces the risk of pregnancy by
at least 75%.
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|
Source: Hatcher RA
et al.
Contraceptive Technology. 18th rev. edition. New York, NY: Ardent Media, 2004.