“…In 2004 9.6% of US 8th graders and 8% of English secondary students reported VSM during the previous year (Blenkinsop et al, 2004;Johnston, O'Malley, Bachman, & Schulenberg, 2005). Chronic or dependent use is unusual and often co-occurs with a range of other lifetime difficulties including poverty, mental health problems, other problematic drug use, abuse, family conflict and homelessness, poor schooling achievement and involvement with the justice and child welfare systems (see for example Best et al, 2004;Howard & Jenson, 1999;Kurtzman, Otsuka, & Wahl, 2001;Sakai, Hall, Mikulich-Gilberts, & Crowley, 2004;Worley, 2001). A study of adolescents in the UK found that only 0.4% of respondents met the DSM-IV criteria for inhalant abuse or dependence (Wu, Pilowsky, & Schlenger, 2004).…”