Volume 35, Issue 4 pp. 339-345
RESEARCH ARTICLE

Obsessive–compulsive disorder and the risk of subsequent mental disorders: A community study of adolescents and young adults

Patrizia D. Hofer MSc

Patrizia D. Hofer MSc

Division of Clinical Psychology and Epidemiology, Department of Psychology, University of Basel, Basel, Switzerland

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Karina Wahl PhD

Karina Wahl PhD

Division of Clinical Psychology and Epidemiology, Department of Psychology, University of Basel, Basel, Switzerland

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Andrea H. Meyer PhD

Andrea H. Meyer PhD

Division of Clinical Psychology and Epidemiology, Department of Psychology, University of Basel, Basel, Switzerland

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Marcel Miché Dipl-Psych

Marcel Miché Dipl-Psych

Division of Clinical Psychology and Epidemiology, Department of Psychology, University of Basel, Basel, Switzerland

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Katja Beesdo-Baum PhD

Katja Beesdo-Baum PhD

Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Dresden, Germany

Behavioral Epidemiology, Technische Universität Dresden, Dresden, Germany

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Shiu F. Wong PhD

Shiu F. Wong PhD

School of Psychology, The University of New South Wales, Kensington, NSW, Australia

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Jessica R. Grisham PhD

Jessica R. Grisham PhD

School of Psychology, The University of New South Wales, Kensington, NSW, Australia

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Hans-Ulrich Wittchen PhD

Hans-Ulrich Wittchen PhD

Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Dresden, Germany

Clinical Psychology & Psychotherapy RG, Department of Psychiatry & Psychotherapy, Ludwig Maximilians Universitaet Munich, Munich, Germany

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Roselind Lieb PhD

Corresponding Author

Roselind Lieb PhD

Division of Clinical Psychology and Epidemiology, Department of Psychology, University of Basel, Basel, Switzerland

Max Planck Institute of Psychiatry, Munich, Germany

Correspondence

Roselind Lieb, Division of Clinical Psychology and Epidemiology, Department of Psychology, University of Basel, Missionsstrasse 60/62, 4055 Basel, Switzerland.

Email: [email protected]

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First published: 28 February 2018
Citations: 23

Funding information: Grant sponsor: German Federal Ministry of Education and Research (BMBF); Grant numbers: 01EB9405/6, 01EB9901/6, EB01016200, 01EB0140, and 01EB0440; Grant sponsor: Deutsche Forschungsgemeinschaft (DFG); Grant numbers: LA1148/1-1, WI2246/1-1, WI 709/7-1, and WI 709/8-1.

Abstract

Background

Comorbidity of obsessive–compulsive disorder (OCD) with other mental disorders has been demonstrated repeatedly. Few longitudinal studies, however, have evaluated the temporal association of prior OCD and subsequent mental disorders across the age period of highest risk for first onset of mental disorders. We examined associations between prior OCD and a broad range of subsequent mental disorders and simulated proportions of new onsets of mental disorders that could potentially be attributed to prior OCD, assuming a causal relationship.

Methods

Data from 3,021 14- to 24-year-old community subjects were prospectively collected for up to 10 years. DSM-IV OCD and other DSM-IV mental disorders were assessed with the Munich-Composite International Diagnostic Interview. We used adjusted time-dependent proportional hazard models to estimate the temporal associations of prior OCD with subsequent mental disorders.

Results

Prior OCD was associated with an increased risk of bipolar disorders (BIP; [hazard ratio, HR = 6.9, 95% confidence interval, CI, (2.8,17.3)], bulimia nervosa [HR = 6.8 (1.3,36.6)], dysthymia [HR = 4.4 (2.1,9.0)], generalized anxiety disorder (GAD; [HR = 3.4 (1.1,10.9)], and social phobia [HR = 2.9 (1.1,7.7)]). Of these outcome disorders, between 65 and 85% could be attributed to OCD in the exposed group, whereas between 1.5 and 7.7% could be attributed to OCD in the total sample.

Conclusions

This study provides strong evidence that prior OCD is associated with an increased risk of subsequent onset of BIP, bulimia nervosa, dysthymia, GAD, and social phobia among adolescents and young adults. Future studies should evaluate if early treatment of OCD can prevent the onset of these subsequent mental disorders.

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