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Marijuana Use Secondary to Other Substances of Abuse
The DASIS Report:  Marijuana Use Secondary to Other Substances of Abuse

Highlights:

  • Use of more than one substance is a common pattern among admissions to substance abuse treatment.

  • Marijuana was reported as the primary substance of abuse by 236,400 (15 percent) of the 1.6 million admissions in SAMHSA's Treatment Episode Data Set (TEDS) in 2000.

  • In an additional 336,900 substance abuse treatment admissions (21 percent of total admissions),  marijuana was reported as less significant or secondary to abuse of another substance.  That is, in 60 percent of the admissions involving marijuana in 2000, marijuana was not the primary substance of abuse.

  • Among secondary marijuana admissions, 56 percent had alcohol as the primary substance of abuse, 21 percent cocaine, 11 percent stimulants, 10 percent opiates, and 2 percent other substances.

  • Average age at admission was older among secondary marijuana admissions than among primary marijuana admissions (age 31 vs. 23).

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This Short Report, The DASIS Report:  Marijuana Use Secondary to Other Substances of Abuseis based on the Drug and Alcohol Services Information System (DASIS), the primary source of national data on substance abuse treatment.  DASIS is conducted by the Office of Applied Studies (OAS) in the Substance Abuse and Mental Health Services Administration (SAMHSA). 

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This page was last updated on April 10, 2008.

SAMHSA, an agency in the Department of Health and Human Services, is the Federal Government's lead agency for improving the quality and availability of substance abuse prevention, addiction treatment, and mental health services in the United States.

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