208177 Conceptualizing the influence of alcohol and marijuana use on intentions to have sex using the Integrative Model

Tuesday, November 10, 2009

Peter Busse, MA , Annenberg School for Communication, University of Pennsylvania, Philadelphia, PA
The link between substance use and sexual behavior has been established in the literature, at both levels of global and event-specific associations (Beadnell et al., 2007; Cooper, 2002). The cognitive mechanism by which alcohol or marijuana use influences sexual activity, however, has not been consistently documented (Beadnell et al., 2008, for an example).

Using the Integrative Model (Fishbein, 2000), this study examines the processes by which alcohol and marijuana use influence intentions to have sex among a sample of adolescents in Philadelphia. A total of 458 White and African American adolescents, ages 14 to 16, provided information about their attitudes, perceived norms, self-efficacy and intentions to have sex in the next 12 months, and also reported on their alcohol use during the last 12 months and their lifetime marijuana use.

Results indicate that alcohol use increases intentions to have sex through self-efficacy, while marijuana use increases intentions indirectly through attitudes, norms, self efficacy, and also with a direct effect. In addition, while marijuana use does not moderate the theoretical links between intentions, attitudes, norms and self-efficacy, alcohol use increases the magnitude of the links between intentions and both attitudes and self-efficacy. Thus, while non-alcohol users base their intentions on attitudes and perceptions of norms, alcohol users base their intentions on attitudes, norms and self-efficacy.

In conclusion, the link between alcohol use and intentions to have sex appears to be different for alcohol-users than for those non-alcohol users.

Learning Objectives:
Explain the cognitive mechanism that links alcohol and marijuana use to intentions to have sex among adolescents.

Keywords: Alcohol, Sex

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am a third year PhD student of communications with two masters degrees in communications -one from the University of Southern California and one from the University of Pennsylvania. I have presented in four conferences already, and two of my papers are currently under review in the journals of AIDS & Behavior and Communication Research.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.