1: Subst Use Misuse 2001 Apr;36(5):663-72

Shillington AM, Clapp JD.

School of Social Work, San Diego State University, California 92182-4119, USA. ashillin@mail.sdsu.edu

This study examines the relationships among selected demographic characteristics, alcohol use only, alcohol plus marijuana use and substance-use related problems. Data are from 409 randomly selected undergraduate college students attending a large urban university. Poly-substance users were more likely than alcohol only users to be younger and experience all substance-use related problems studied. The relationship between poly-substance use and increased substance use-associated problems was also identified when controlling for other common predictors of substance use problems.