Psychiatric comorbidity in young cocaine users: induced versus independent disorders

Authors

  • M. Jesús Herrero,

    1. Health Services Research Unit (IMIM-Hospital del Mar), Barcelona, Spain,
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  • Antonia Domingo-Salvany,

    Corresponding author
    1. Health Services Research Unit (IMIM-Hospital del Mar), Barcelona, Spain,
    2. CIBER en Epidemiología y Salud Publica (CIBERESP), Spain,
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  • Marta Torrens,

    1. IAPS, Hospital del Mar, Barcelona, Spain and
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  • M. Teresa Brugal,

    1. CIBER en Epidemiología y Salud Publica (CIBERESP), Spain,
    2. Public Health Agency (ASPB), Barcelona, Spain
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  • the ITINERE Investigators

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    • *

      The ITINERE Investigators include: Luis de la Fuente de Hoz, Rosario Ballesta Gómez, Gregorio Barrio Anta, M. José Bravo Portela, Daniel Lacasa, Fermín Fernández, Francisco González-Saiz, Luis Royuela, Fernando Vallejo, José Pulido, Fernando Sánchez and Teresa C. Silva.


Antonia Domingo-Salvany, Health Services Research Unit, Institut Municipal d'Investigació Mèdica (IMIM), Dr Aiguader 88, E-08003 Barcelona, Spain. E-mail: adomingo@imim.es

ABSTRACT

Aims  To examine the psychiatric status of young cocaine users using a validated instrument for the evaluation of psychiatric comorbidity, emphasizing the distinction between independent and induced psychiatric conditions.

Design  Cross-sectional study.

Setting  Barcelona, Spain.

Participants  A cohort of 139 young (18–30 years) adult current regular cocaine users.

Measurements  The Psychiatric Research Interview for Substance and Mental Disorders (PRISM-IV, which produces diagnoses according to DSM-IV criteria, including Axis II antisocial and borderline personality disorders).

Findings  Nearly 42.5% of the subjects presented psychiatric comorbidity. The most common Axis I diagnoses were mood disorders (26.6%) and anxiety disorders (13%). Increasing age, having ever received treatment for drug use and freebase cocaine use were associated with substance-induced disorders diagnoses relative to primary Axis I disorders.

Conclusions  This study has shown a relatively high prevalence of psychiatric comorbidity in cocaine users recruited in non-clinical settings. Future studies examining potential differential factors associated with primary versus substance-induced disorders are necessary to optimize the implementation of more suitable approaching programmes for young regular cocaine users.

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