Excerpt
The high rate of co-occurrence of mental and substance use disorders has been well known for almost two decades within community samples, and among those seeking help from either addiction or mental health services. It has also been recognized that people with co-occurring disorders have worse outcomes from treatment and support for mental disorders and/or substance abuse, and further, that there is a wide range of impacts associated with these co-occurring disorders. These impacts include, but are by no means limited to, homelessness, victimization, and incarceration that, in turn, contribute significantly to the high utilization and cost of health and other services. …