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To determine the social contexts associated with the past-year substance use (multiple substances, alcohol, marijuana, and nonmedical use of prescription opioids, stimulants, and tranquilizers) among U.S. high school seniors.A secondary analysis of nationally representative survey data from 10 cohorts (2002–2011) of the Monitoring the Future study, including 24,809 high school seniors.The social contexts...
To (1) estimate the proportion of nonmedical users of prescription opioids (i.e., used prescription opioids in the past year without a doctor's orders) who used leftover medications from their own previous prescriptions; (2) assess substance use behaviors as a function of diversion source; and (3) identify the sources for these prescribed opioids.We analyzed data collected via self-administered questionnaires...
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