Studies report increased rates of cigarette and substance use in youths with Attention-Deficit/Hyperactivity Disorder (ADHD), though the mechanism of risk remains unclear. The present study tests the hypothesis that ADHD individuals "self-medicate" with cigarettes and substances of abuse. As part of five- and ten-year case-control longitudinal family studies of ADHD, responses to the Drug Use Screening Inventory (DUSI) were examined for evidence of self-medication. DUSI data from 90 ADHD probands and 96 control probands were obtained. Thirty-six percent of subjects reported self-medication, 25% used to get high, and 39% had unknown motivation. No significant differences were found between ADHD and controls in motivation. ADHD symptoms did not differ between self-medicators and subjects using to get high. DUSI problem scores were higher in ADHD (versus controls), those using to get high (versus self-medicators), and subjects using alcohol (versus other substances). More than one-third of adolescents and young adults endorsed using cigarettes and substances for self medication. Studies clarifying the role of self-medication in substance use disorders are necessary.
The data about the clinical features of probands and the pattern of transmission of ADHD among relatives found little evidence for the validity of subthreshold ADHD among such subjects, who reported a lifetime history of some symptoms that never met DSM-IV's threshold for diagnosis. In contrast, the results suggested that late-onset adult ADHD is valid and that DSM-IV's age-at-onset criterion is too stringent.
Background-Although previous work has suggested that juvenile onset bipolar disorder (BPD) is associated with an elevated risk for cigarette smoking and substance use disorders (SUD), the literature on the subject is limited. We evaluated this association in a prospective case-control study of adolescents with and without BPD.
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