The Integrated Model of Treatment for Co-occurring Psychiatric and Substance Use Disorders. This paper discusses the integrated model of treatment for co-occurring psychiatric and substance abuse disorders. Research strongly indicates that "changes in substance disorder have significant effects on symptoms, functioning, and quality of life" (Cuffel, 1996, p. 101). Co-occurring substance use disorders and psychiatric disorders can be assessed and managed effectively only through the integrated treatment model. Pages: 17 Bibliography: 15 source(s) listed Filename: 18906 Co-occurring Psychiatric, Substance.doc Price: 152.15