A Brief Marijuana Intervention for Adolescent Women - 1

The purpose of this study is to examine the efficacy of a brief motivational intervention on marijuana use and sex-risk behavior in young women.

This study holds the promise of developing a brief, efficacious intervention to reduce marijuana use and related sexual risk-taking behavior among the large populaton of late adolescent women who are regular marijuana users. In the abscence of intervention, these women are at heightened risk of contracting HIV and other sexually transmitted infections. Therefore it is crucial to develop an intervention that will reduce their marijuana and subsequent sexual risk taking behavior. The intervention employed in this study represents a novel adaptation of interventions that are well-supported with similar populations. If the current intervention is found to be efficacious, it can be readily integrated into a variety of treatment settings, particularly other primary care settings. In addition, this study will contribute valuable information about the relationship between marijuana use and sexual risk taking behavior and about the mechanisms of change in marijuana use in late adolescent women. Comparison(s): Participants will be assigned, in this 6 month longitudinal study, to an assessment-only group or an assessment plus intervention group. Those in the intervention group will receive 2 motivational intervention sessions during the first 3 months of their study participation.

Participants complete assessments at baseline, 1, 3 and 6 months, and receive a 2-session behavioral intervention at the baseline and 1-month study appointments.

Inclusion Criteria: current marijuana use; currently sexually active; able to complete the study procedures in English Exclusion Criteria: pregnant; alcohol dependence; drug dependence

Stein MD, Caviness CM, Anderson BJ. Alcohol use potentiates marijuana problem severity in young adult women. Womens Health Issues. 2014 Jan-Feb;24(1):e77-82. doi: 10.1016/j.whi.2013.10.005.

Caviness CM, Hagerty CE, Anderson BJ, de Dios MA, Hayaki J, Herman D, Stein MD. Self-efficacy and motivation to quit marijuana use among young women. Am J Addict. 2013 Jul-Aug;22(4):373-80. doi: 10.1111/j.1521-0391.2013.12030.x.

Stein MD, Hagerty CE, Herman DS, Phipps MG, Anderson BJ. A brief marijuana intervention for non-treatment-seeking young adult women. J Subst Abuse Treat. 2011 Mar;40(2):189-98. doi: 10.1016/j.jsat.2010.11.001. Epub 2010 Dec 24.