Prevalence and patterns of substance use among early adolescents

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Abstract
Prevalence and patterns of substance use are described for a sample of 105 San Francisco East Bay adolescents (age 14). Data are compared with national statistics on substance use among high school seniors. While alcohol use appeared comparable to the national statistics, tobacco use was less prevalent among this younger western sample. Despite the differences in ages, use of marijuana, cocaine, and hallucinogens was similar to national high school prevalence; use of other “harder” drugs was more extensive among the older, national sample. Contrary to typical findings, males and females were not found to differ in frequency or extent of substance use; females appeared somewhat more involved in substance use at this early age. Initiation of substance use occurred at early grade levels, suggesting that intervention efforts should begin prior to junior high, perhaps as early as fourth or fifth grade.