Birth Control Problem Set
Methods of Birth Control
Abstinence and Variations| Complete abstinence (no prescription required) |
Failure rate 0% |
|
| Natural family planning/ rhythm method (no prescription required) |
Failure rate 5% to 30% |
|
| Withdrawal (coitus interruptus) (no prescription required) |
Failure rate 4% to 19% |
Barrier Method
 |
Condoms: male & female (no prescription required) |
Failure rate male: 2% to 12% female: 5% to 21% |
 |
Cervical cap (prescription required) |
Failure rate 9% to 18% |
 |
Diaphragm & spermicide (prescription required) |
Failure rate 6% to 18% |
Sperm Destruction
 |
Spermicides (no prescription required) |
Failure rate 3% to 30% |
Prevention of Egg Maturation
 |
The Pill (prescription required) |
Failure rate 0.5% to 3% |
 |
Depo-Provera Contraceptive Injections (prescription required) |
Failure rate 0.3% |
 |
Norplant (prescription required) |
Failure rate 0.09% |
Prevention of Embryo Implantation
 |
Intrauterine device (prescription required) |
Failure rate 0.6% to 2% |
| Emergency contraception (prescription required) |
Failure rate 25% |
Surgical Sterilization
 |
Tubal ligation (surgical procedure that requires full anesthesia) |
Failure rate 1% to 2% |
 |
Vasectomy (surgical procedure normally done under local anesthetic in the doctor's office) |
Failure rate 1% to 2% |
University of Arizona
Friday, February 27, 1998
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