ESTIMATED CONDOM FAILURE AND FREQUENCY OF CONDOM USE AMONG GAY MEN

Objectives. Condoms are designed to bar transmission of the human immu nodeficiency virus (HIV), but they sometimes fail. This paper explores the effect of experience with condoms on condom failure among gay men . Methods. Risk of condom failure (breakage or slippage) on a single o ccasion is estimated for four sexual acts reported over 12 months by a sample of gay New York City men (n = 741). The estimation procedure a ssumes that each episode in which a condom is used is an independent e vent. Evidence is offered to support this assumption. Results. Risk of condom failure in a single episode was fairly high, particularly in a nal intercourse, for men who had engaged in each act only a few times in the previous year. It declined rapidly with experience (e.g., to be low 1% for receptive anal intercourse after about 10 episodes in the p revious year). Condoms failed less often in oral than anal sex, estima ted risk of failure also decreased with experience. Conclusions. Gay m en should be especially cautious the first few times they use a condom ; after moderate experience, however, they may expect a low risk of co ndom failure.