“…For substance use disorders, including alcohol, opioid, and cannabis dependence, females advance more rapidly from use to regular use to first treatment episode than do their male counterparts (Dawson, 1996;Hernandez-Avila et al, 2004;Johnson et al, 2005;Orford and Keddie, 1985;Piazza et al, 1989;Randall et al, 1999). In addition, when they enter treatment, in spite of fewer years of use and smaller quantities of substances used, their substance abuse symptom severity is generally equivalent to that of males (Hernandez-Avila et al, 2004;Piazza et al, 1989;Randall et al, 1999). Even with fewer years of substance use, at treatment entry, females average more medical, psychiatric, and adverse social consequences of their substance use disorders than males.…”