In 2009, almost 20% of the adult population in the United States (19.9% or 45.1 million people) had a mental illness of some kind during the prior twelve months. Those with a serious mental illness were 4.8% of the adult population, or 11 million people.
These are the sobering results of the latest National Survey on Drug Use and Health (NSDUH), a report presenting estimates on the prevalence of mental disorders and mental health services utilization among adult Americans.
The results showed that adult women were more likely than men to have a mental illness of any kind (23.8 vs. 15.6%) or a serious mental illness (6.4 vs. 3.2%). An estimated 8.4 million adults, or 3.7%, had serious thoughts of suicide, 2.2 million (1%) had made suicide plans, and 1 million (0.5%) had attempted suicide within the past year.
The survey results estimate that among the over 45 million adults with any mental illness in the past year, almost 9 million had substance dependence or abuse. Among the 11 million adults with a serious mental illness, almost 26% also had substance dependence or abuse.
Only 17 million people with any mental illness received mental health services, whereas 28 million neither sought or received any treatment. Six in ten adults with a serious mental illness received mental health services, while almost 4.5 million received no treatment at all.
The survey is conducted each year by the Office of Applied Studies, Substance Abuse and Mental Health Services Administration of the U.S. Department of Health and Human Services using computerized interviewing. The 2009 results were extrapolated from screening completed at 143,565 addresses, and 68,700 completed interviews. In this survey, the category any mental illness includes the presence of a diagnosable mental, behavioral, or emotional disorder in the past year (excluding developmental and substance use disorders) of sufficient duration to meet diagnostic criteria specified within the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR). The category serious mental illness includes a diagnosable mental, behavioral, or emotional disorder resulting in substantial impairment in carrying out major life activities.
You can see the complete results of the 2009 survey, published a few days ago, on the OAS-SAMHSA web site by following this link.