The relative importance of social versus commercial sources in youth access to tobacco, alcohol, and other drugs

Background. Youth substance use began to increase in 1992 following a decad e-long decline, leading to increased interest in controlling access to toba cco, alcohol, and other drugs. Methods. The anonymous and voluntary Minnesota Student Survey was administe red to 133,794 public school students in grades 6, 9, and 12. Questions add ressed current frequency of use of tobacco, alcohol, and other drugs and ho w students obtained these substances. Data were analyzed to determine the r elationship between grade level, gender, race/ethnicity, use frequency, and access to substances through social and commercial sources. (Tobacco analy ses were limited to students under age 18 years.) Results. Social sources (especially friends) predominate across all age gro ups and substances. Students are much more likely to obtain tobacco than al cohol from commercial sources but few rely exclusively on commercial source s for either. Females and infrequent users are more likely to depend on soc ial sources exclusively while males and frequent users are more likely to u se commercial sources. Conclusions. Because substances are easily accessible through social source s, prevention policies directed at retail outlets may not have the desired effect on reducing teen smoking and drinking. Greater attention to reducing access to all substances from social sources is needed.