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Jornal Brasileiro de Psiquiatria

Print version ISSN 0047-2085On-line version ISSN 1982-0208


FORMIGA, Mariana Bandeira; VASCONCELOS, Selene Cordeiro; GALDINO, Melyssa Kellyane Cavalcanti  and  LIMA, Murilo Duarte da Costa. Presence of dual diagnosis between users and non-users of licit and illicit drugs in Brazil. J. bras. psiquiatr. [online]. 2015, vol.64, n.4, pp.288-295. ISSN 1982-0208.


Investigate the occurrence of dual diagnosis in users of legal and illegal drugs.


It is an analytical, cross-sectional study with a quantitative approach, non-probabilistic intentional sampling, carried out in two centers for drug addiction treatment, by means of individual interviews. A sociodemographic questionnaire, the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) and the Mini-International Neuropsychiatric Interview (MINI) were used.


One hundred and ten volunteers divided into abstinent users (group 1), alcoholics (group 2) and users of alcohol and illicit drugs (group 3). The substances were alcohol, tobacco, crack and marijuana. A higher presence of dual diagnosis in group 3 (71.8%) was observed, which decreased in group 2 (60%) and 37.1% of drug abstinent users had psychiatric disorder. Dual diagnosis was associated with the risk of suicide, suicide attempts and the practice of infractions. The crack consumption was associated with the occurrence of major depressive episode and antisocial personality disorder.


It was concluded that the illicit drug users had a higher presence of dual diagnosis showing the severity of this clinical condition. It is considered essential that this clinical reality is included in intervention strategies in order to decrease the negative effects of consumption of these substances and provide better quality of life for these people.

Keywords : Substance use disorder; drug users; dual diagnosis; psychiatric comorbidity.

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