Previous studies of the drug-use patterns of institutionalized youth found that they followed the standard progression of drug use from marijuana to hard drugs. Utilizing a probabilistic assessment of models, this study supports a modified gateway sequences in which cocaine use appears as an intermediate step between marijuana use and use of other…

Eighty-nine high school seniors completed a questionnaire on their feelings and activities, including their use of drugs. Adolescents with a low grade point average, high popularity, and high depression were more likely to smoke cigarettes, drink alcohol, and smoke marijuana than were their peers. Cigarette and alcohol use predicted marijuana use,…

This project is part of a multi-year program to gather detailed information about substance-use patterns among Texans. Investigators interviewed a total of 946 youths, age 10 to 17, as they entered Texas Youth Commission (TYC) reception facilities. Results show that 81% of TYC youth have used illicit substances--51% in their last month on the…

Uses longitudinal national survey data to examine relationships between cocaine and marijuana use. Results show that weekly marijuana users were over 10 times more likely to initiate cocaine use within the next year. Also, many psychosocial predictors are not predictive of initial cocaine use after controlling for prior weekly marijuana use. (RJM)

This report highlights the important trends in adolescent drug use. Although the focus is on the abuse of alcohol, nicotine, marijuana, cocaine, heroin, and inhalants, it is important to remember that adolescents abuse a wide range and combination of drugs. This report also addresses state-of-the-art treatment methods, and summarizes research on…

Presents results from the 1992 Drug Use Forecasting (DUF) program that measures illicit drug use among persons arrested for criminal behavior. Adult use of specific drugs, male juvenile drug use, and the role of the DUF are explored. (GLR)