Pornography Exposure and Coitus Interruptus in a Campus-Representative Sample of Collegiate Men.

Coitus interruptus is an attempt at contraception wherein penile thrusts desist on the cusp of ejaculation, the penis is hastily withdrawn from the vagina, and semen is deposited externally. Pornography is extremely popular and multiple content analyses suggest that external ejaculation is the norm in pornographic depictions. Using campus-representative data collected from undergraduate and graduate students 18 and older at a large public U.S. university, the present study had three primary objectives: to provide the first estimate of the direction and magnitude of the association between pornography exposure frequency and coitus interruptus among men; to investigate whether the pornography exposure-coitus interruptus association is moderated by age, race, relationship status, binge drinking, or impulsivity; and to explore whether confounding and prediction models supported age, race, relationship status, binge drinking, and impulsivity as confounds or initiating predictors of the pornography exposure-coitus interruptus association. For every one-unit increase in pornography exposure frequency, the odds of coitus interruptus increased by 18%. This association was not moderated or confounded by age, race, relationship status, binge drinking, or impulsivity. Mediation models did suggest the importance of age, relationship status, and impulsivity as initiating predictors, however. Intervention and theoretical implications are discussed.