contraceptive effectiveness

contraceptive effectiveness

the effectiveness of a method of contraception in preventing pregnancy. For clinical purposes it combines the theoretic effectiveness of the device, medication, or method and the use effectiveness. It is sometimes represented as a percentage but more accurately as the number of pregnancies per 100 woman-years. The average pregnancy rate for a couple who are sexually active and do not use contraceptives is equivalent to 85 pregnancies per 100 woman-years. A contraceptive method that results in a pregnancy rate of fewer than 10 pregnancies per 100 woman-years is considered highly effective. See also pregnancy rate, woman-year.
References in periodicals archive ?
In men, progestin increases the contraceptive effectiveness of testosterone.
John's wort might interfere with contraceptive effectiveness.
Contraceptive effectiveness as a benefit of OCs was stated only in the user group.
I quote from the package insert of ParaGard, an IUD containing copper: "The contraceptive effectiveness of ParaGard is enhanced by copper continuously released into the uterine cavity.
The family planning literature contains numerous studies of contraceptive effectiveness among women, (4) use of contraceptives generally (and use of particular methods), (2,5) and factors affecting contraceptive use and nonuse.
Support women's use of multiple methods, and discuss strategies to optimize contraceptive effectiveness and STD prevention, including promoting consistent condom use.
This higher level of contraceptive effectiveness would not only improve the lives of the women and their families, it would save roughly $200 million in government health care expenditures each year.
Whether such reduced hormone levels affect contraceptive effectiveness is unclear because no studies have looked at actual clinical outcomes.
Because pregnancy is so expensive, marginal savings gained by limiting refill access are almost certain to be overwhelmed by added costs of pregnancy caused by reduced contraceptive effectiveness.
Other antibiotics do not appear to affect contraceptive effectiveness.
26 /PRNewswire/ -- CONRAD is pleased to announce the results of the Phase II study carried out to evaluate Ushercell's contraceptive effectiveness.
She should have used a condom because it can interfere with contraceptive effectiveness of the Pill.