Co-occurrence of obsessive-compulsive disorder and substance use disorder in the general population

Authors


Damiaan Denys, Department of Psychiatry, Academic Medical Center, University of Amsterdam, PA.2-179, PO Box 75867, 1070 AW Amsterdam, the Netherlands. E-mail: ddenys@gmail.com

ABSTRACT

Aim  Very little is known about the relationship between obsessive–compulsive disorder (OCD) and substance use disorder (SUD). The aim of this study is to compare the co-occurrence of OCD with SUD to the co-occurrence of SUD with other psychiatric disorders in a representative community sample.

Design  In order to examine the association of SUD and OCD, logistic regression analyses were used generating odds ratios and 95% confidence intervals for life-time prevalence and 12-month prevalence.

Setting and participants  Cross-sectional data were derived from the Netherlands Mental Health Survey and Incidence Study (NEMESIS), a large representative sample of the Dutch population (n = 7076).

Measurements  The Composite International Diagnostic Interview (CIDI) 1.1 was used to assess Diagnostic and Statistical Manual of Mental Disorders Axis I criteria for psychiatric disorders.

Findings  The life-time and 12-month odds of being diagnosed with SUD in subjects with OCD are significantly higher than the odds of SUD for people without a psychiatric disorder. In men, the co-occurrence of substance dependence and OCD is significantly higher than the co-occurrence of substance dependence and other psychiatric disorders, whereas in women this co-occurrence does not differ significantly.

Conclusions  The co-occurrence of substance dependence in obsessive–compulsive disorder is higher than the co-occurrence of substance dependence in other non-obsessive–compulsive disorder DSM disorders, especially in men.

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