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Clinical features of tic-related obsessive-compulsive disorder: results from a large multicenter study

Published online by Cambridge University Press:  04 May 2012

Pedro Gomes de Alvarenga
Affiliation:
Department of Psychiatry, University of Sao Paulo Medical School (USP), São Paulo, Brazil
Maria Alice de Mathis*
Affiliation:
Department of Psychiatry, University of Sao Paulo Medical School (USP), São Paulo, Brazil
Anna Claudia Dominguez Alves
Affiliation:
Department of Psychiatry, University of Sao Paulo Medical School (USP), São Paulo, Brazil
Maria Conceição do Rosário
Affiliation:
Department of Psychiatry, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
Victor Fossaluza
Affiliation:
Department of Psychiatry, University of Sao Paulo Medical School (USP), São Paulo, Brazil
Ana Gabriela Hounie
Affiliation:
Department of Psychiatry, University of Sao Paulo Medical School (USP), São Paulo, Brazil
Euripedes Constantino Miguel
Affiliation:
Department of Psychiatry, University of Sao Paulo Medical School (USP), São Paulo, Brazil
Albina Rodrigues Torres
Affiliation:
Department of Neurology, Psychology and Psychiatry, Botucatu Medical School, Universidade Estadual Paulista (UNESP), Botucatu, Brazil
*
*Address for correspondence: Maria Alice de Mathis, Department of Psychiatry, University of São Paulo Medical School, Rua Dr. Ovídio Pires de Campos, 785 – 05403-010 São Paulo, SP, Brazil. (Email alicedemathis@gmail.com)

Abstract

Objective

To evaluate the clinical features of obsessive-compulsive disorder (OCD) patients with comorbid tic disorders (TD) in a large, multicenter, clinical sample.

Method

A cross-sectional study was conducted that included 813 consecutive OCD outpatients from the Brazilian OCD Research Consortium and used several instruments of assessment, including the Yale-Brown Obsessive-Compulsive Scale, the Dimensional Yale-Brown Obsessive-Compulsive Scale, the Yale Global Tic Severity Scale (YGTSS), the USP Sensory Phenomena Scale, and the Structured Clinical Interview for DSM-IV Axis I Disorders.

Results

The sample mean current age was 34.9 years old (SE 0.54), and the mean age at obsessive-compulsive symptoms (OCS) onset was 12.8 years old (SE 0.27). Sensory phenomena were reported by 585 individuals (72% of the sample). The general lifetime prevalence of TD was 29.0% (n = 236), with 8.9% (n = 72) presenting Tourette syndrome, 17.3% (n = 141) chronic motor tic disorder, and 2.8% (n = 23) chronic vocal tic disorder. The mean tic severity score, according to the YGTSS, was 27.2 (SE 1.4) in the OCD + TD group. Compared to OCD patients without comorbid TD, those with TD (OCD + TD group, n = 236) were more likely to be males (49.2% vs. 38.5%, p < .005) and to present sensory phenomena and comorbidity with anxiety disorders in general: separation anxiety disorder, social phobia, specific phobia, generalized anxiety disorder, post-traumatic stress disorder, attention-deficit hyperactivity disorder, impulse control disorders in general, and skin picking. Also, the “aggressive,” “sexual/religious,” and “hoarding” symptom dimensions were more severe in the OCD + TD group.

Conclusion

Tic-related OCD may constitute a particular subgroup of the disorder with specific phenotypical characteristics, but its neurobiological underpinnings remain to be fully disentangled.

Information

Type
Original Research
Copyright
Copyright © Cambridge University Press 2012

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