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Gudjonsson, Gisli H.; Sigurdsson, Jon Fridrik; Sigfusdottir, Inga Dora; Young, Susan – Journal of Child Psychology and Psychiatry, 2012
Background: This study investigates the relationship between attention deficit hyperactivity disorder (ADHD) symptoms and cigarette smoking, alcohol use and illicit drug use. Method: The participants were 10,987 pupils in the final three years of their compulsory education in Iceland (ages 14-16 years). The participants completed questionnaires in…
Descriptors: Attention Deficit Hyperactivity Disorder, Smoking, Compulsory Education, Lysergic Acid Diethylamide