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Marijuana Use and Drug Dependence

The NHSDA Report:   Marijuana Use and Drug Dependence

Highlights:

  • Over 1 million youths aged 12 to 17 and half a million young adults aged 18 to 25 used marijuana for the first time in 1999.
  • In 2000, the highest rate of past month marijuana use was among 19 year olds.
  • Adult dependence on illicit drugs was more likely among individuals who first used marijuana at age 14 or younger than among those who first used marijuana after age 14.

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This Short Report, The NHSDA Report:   Marijuana Use and Drug Dependence, is based on SAMHSA's  National Household Survey on Drug Abuse (NHSDA), now called the  National Survey on Drug Use and Health (NSDUH).  The survey is conducted by the Office of Applied Studies (OAS) in the Substance Abuse and Mental Health Services Administration (SAMHSA).  SAMHSA's National Survey on Drug Use and Health (NSDUH) is the primary source of information on the prevalence, patterns, and consequences of drug and alcohol use and abuse and for selected mental health measures in the general U.S. civilian non institutionalized population, age 12 and older.   SAMHSA's National Survey on Drug Use & Health also provides estimates for drug use and for selected mental health measures by State.

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This page was last updated on April 28, 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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