Regier et al, JAMA 1990
Prevalence of mental illness in alcohol disorder samples
•In community, 24.4% have mental illness •In institutions, 55% have mental illness •In substance abuse treatment, 65% have mental illness
We just looked at how many people with an identified mental illness also have a substance use disorder.  This slide looks at how many people with an identified alcohol disorder also have a mental illness. This slide is especially important for people who are in substance abuse administrations or treatment organizations.  As you can see, in the community, one fourth of people with an alcohol disorder have a co-morbid mental illness.  The second bar shows that  rates rise as you look at people who are in institutions such as hospitals, jail, nursing homes.  Over 50% of people in institutions who have an alcohol disorder also have a mental illness.  In substance abuse treatment facilities, the rates are even higher!  Two thirds of people have a co-morbid mental illness.

The data that shows how frequently mental illness and substance use disorders overlap shows that we really need to be treating both disorders together.  Mental health clinicians need to know how to  substance use disorders, and substance abuse clinicians need to know how to treat mental disorders.