Typology of individuals with substance dependence based on a Montreal longitudinal catchment area study

Adm Policy Ment Health. 2015 Jul;42(4):405-19. doi: 10.1007/s10488-014-0581-1.


This study sought to develop a typology of individuals with substance dependence (ISD) based on a longitudinal survey (n = 2,434) and 121 ISD. The latter were divided into three groups: newly abstinent individuals, chronic dependents and acute dependents. Individuals' typology was developed by cluster analysis. Newly abstinent individuals had fewer emotional problems and mental disorders in the previous 12 months. Four classes of ISD were identified, labelled respectively "chronic multi-substance consumption and mental disorders comorbidities," "multi-substance consumption," "alcohol and marijuana consumption" and "alcohol consumption only." Strategies adapted to each of these profiles could be promoted for more effective treatment.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Alcoholism / classification
  • Alcoholism / epidemiology
  • Anxiety Disorders / epidemiology*
  • Catchment Area, Health
  • Cluster Analysis
  • Cocaine-Related Disorders / complications
  • Cocaine-Related Disorders / epidemiology
  • Comorbidity
  • Diagnosis, Dual (Psychiatry)
  • Female
  • Health Services Needs and Demand*
  • Health Surveys
  • Humans
  • Longitudinal Studies
  • Male
  • Marijuana Abuse / classification
  • Marijuana Abuse / epidemiology
  • Mental Disorders / epidemiology
  • Mental Health Services*
  • Middle Aged
  • Mood Disorders / epidemiology*
  • Quebec
  • Substance-Related Disorders / classification*
  • Substance-Related Disorders / epidemiology
  • Young Adult