Interventions designed to prevent drug abuse have typically focused on the gateway drugs of tobacco, alcohol, and marijuana, on the assumption that such prevention would indirectly prevent use of harder substances. Little data has been available, however, for examining the onset of harder substance use in a normal adolescent population. This…

Attempted to discover patterns of alcohol, drug, and tobacco use among public school children in New Brunswick using Provincial School Drug Survey (PSDS), an existing large-scale assessment. Recoded variables in PSDS dataset to derive profiles of typical tobacco, cannabis, and alcohol users. Found increase in predictive accuracy of regression…