“…ADHD is associated with offending from a young age (Retz et al, 2004;Vitelli, 1996), and adolescents diagnosed with ADHD are four to five times more likely to have been arrested than controls (Satterfield, Swanson, Schell, & Lee, 1994). Studies conducted in youth offending institutions have estimated high rates of ADHD of 26.5% in Canada (Ulzen & Hamilton, 1998); 43% in England (Young et al, 2010); 50% in Finland (Haapasalo & Ha¨ma¨la¨inen, 1996), 68% in Sweden (Dalteg & Levander, 1998), 45% in Germany (Retz et al, 2004), and 76% in the USA (Timmons-Mitchell et al, The Journal of Forensic Psychiatry & Psychology 73 1997).…”