A prospective study using two brands of condoms found that of 405 condoms used for intercourse, 7.9% either broke during intercourse or withdrawal or slipped off during intercourse; none of these events were related to condom brand, past condom use or use of additional lubricant. Of the remaining condoms, 7.2% slipped off during withdrawal; slippage was not related to condom brand or past use of condoms, but it was significantly higher when additional lubricant was used.

Adolescent↗

PubMedDate not supplied

Contraceptive failure in the United States: an update.

This report provides an update of the authors' previous estimates of first-year probabilities of contraceptive failure for all methods of contraception. Estimates are provided of failure during typical use (which includes both incorrect and inconsistent use) and during perfect use (correct use at every act of intercourse). The difference between these two probabilities provides a measure of how forgiving of imperfect use each method is. These revisions are prompted by recent studies that provide the first estimates of failure during perfect use for periodic abstinence and the cervical cap, by more complete evaluations of implants, and by the appearance of the Copper T 380A and disappearance of other IUDs from the US market. Also provided is a more complete explanation of how the previous estimate of the probability of becoming pregnant while relying solely on chance should be interpreted, and this estimate is revised slightly downward.

Clinical Trials as Topic↗

PubMedDate not supplied

Contraceptive use among family planning clinic personnel.

Explore the source record for details and available documents.

Adolescent↗