Survey shows marijuana use disorder linked to substance use/mental disorders and disability.
Marijuana use disorder is common in the United States, is often associated with other substance use disorders, behavioral problems, and disability, and goes largely untreated, according to a new study conducted by the National Institute on Alcohol Abuse and Alcoholism (NIAAA), part of the National Institutes of Health. The analysis found that 2.5 percent of adults — nearly 6 million people — experienced marijuana use disorder in the past year, while 6.3 percent had met the diagnostic criteria for the disorder at some point in their lives. A report of the study, led by Bridget Grant, Ph.D., of the NIAAA Laboratory of Epidemiology and Biometry, appears online today in the American Journal of Psychiatry.
“...Marijuana use can lead to harmful consequences for individuals and society.”
—George F. Koob, Ph.D., Director, NIAAA