Prevalence and Predictors of "Heavy" Marijuana Use in a Canadian Youth Sample

In this investigation, secondary analyses were performed on an extensive database for 473 biological and 128 adoptive families. These data, which were gathered as part of the Vancouver Family Survey, were used to examine the prevalence and predictors of "heavy" marijuana use in a Canadian...

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Bibliographic Details
Published in:Substance use & misuse 2005, Vol.40 (12), p.1849-1863
Main Authors: Barnes, Gordon E., Barnes, Michael D., Patton, David
Format: Article
Language:English
Subjects:
"heavy"
addiction prone personality
Addictive behaviors
Adolescent
Adult
Adult and adolescent clinical studies
Biological and medical sciences
Canada - epidemiology
Cannabis
Catchment Area (Health)
Demography
Drug abuse
Drug addiction
epidemiology
family
Family - psychology
Female
Fundamental and applied biological sciences. Psychology
Humans
Male
Marijuana Abuse - epidemiology
Marijuana Abuse - prevention & control
marijuana use
Medical sciences
peer drug use
Peer Group
Personality Disorders - epidemiology
Predictors
Prevalence
Psychoanalysis
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Risk factors
Severity of Illness Index
Social Environment
Surveys and Questionnaires
Toxicology
Young people
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Summary:In this investigation, secondary analyses were performed on an extensive database for 473 biological and 128 adoptive families. These data, which were gathered as part of the Vancouver Family Survey, were used to examine the prevalence and predictors of "heavy" marijuana use in a Canadian youth sample aged 14-25. Results in this study showed that 12.6% of the sample reported using marijuana once a week or more. These respondents were categorized as "heavy" marijuana users. Higher levels of life problems were associated with this use pattern. Results from a series of regression analyses suggested that the family, personality, and peer domains all contributed significantly in predicting "heavy" marijuana use. Father's alcoholism and peer illicit drug use had direct relationships with heavy marijuana use in this final model. A possible mediated pathway was also suggested with the Addiction Prone Personality influencing use through its relationship with heavier peer drug use.
ISSN:1082-6084
1532-2491
DOI:10.1080/10826080500318558