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Age of first marijuana use and the occurrence of marijuana use disorders in Southwest California Indians

Academic Article
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Overview

authors

  • Ehlers, Cindy
  • Slutske, W. S.
  • Gilder, D. A.
  • Lau, P.

publication date

  • February 2007

journal

  • Pharmacology, Biochemistry and Behavior  Journal

abstract

  • In several national surveys a younger age of substance usage has been associated with a higher likelihood of the development of dependence. Some studies have suggested that age at first use is primarily an environmentally driven variable, whereas others suggest that it may be partially mediated by a general vulnerability to exhibit problem behaviors. Although Native Americans, overall, have the highest prevalence of substance dependence of any US ethnic group, the relationship of age of first marijuana use on the development of dependence in Native American populations is relatively unknown. Demographic information and DSM-III-R diagnoses were obtained from 525 Southwest California Indian adults residing on contiguous reservations. Multinomial logistic regression was used to investigate the relationship between age of first use and marijuana use disorders. Early marijuana use was found to be strongly associated with abuse and dependence in this population, even in the presence of several other risk factors including externalizing diagnoses. These data suggest that effective environmental prevention efforts at reducing early marijuana use may be an important strategy to lower the prevalence of use disorders in this high risk population.

subject areas

  • Adolescent
  • Adult
  • Age of Onset
  • Alcoholism
  • California
  • Child
  • Data Interpretation, Statistical
  • Female
  • Humans
  • Indians, North American
  • Logistic Models
  • Male
  • Marijuana Abuse
  • Marijuana Smoking
  • Psychiatric Status Rating Scales
  • Risk Factors
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Research

keywords

  • age of initiation
  • cannabis use
  • marijuana
  • marijuana dependence
  • native Americans
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Identity

International Standard Serial Number (ISSN)

  • 0091-3057

Digital Object Identifier (DOI)

  • 10.1016/j.pbb.2006.07.024

PubMed ID

  • 16930685
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Additional Document Info

start page

  • 290

end page

  • 296

volume

  • 86

issue

  • 2

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