Comparisons between obsessive-compulsive disorder and trichotillomania in terms of autistic traits and repetitive behaviors in adolescents.

Background: Our study aims to reveal the relationship between autistic traits and repetitive behaviors in adolescents diagnosed with obsessive-compulsive disorder and trichotillomania and to compare them to healthy controls.

Method: A total of 100 adolescents, 33 of whom were diagnosed with obsessive-compulsive disorder, 32 of whom were diagnosed with trichotillomania and 35 healthy controls, aged 11-18 years, who applied to a Child and Adolescent Psychiatry Outpatient Clinic between February 2023 and July 2023, were included in the study. Participants were evaluated with the Autism Spectrum Quotient (AQ)-Adolescent, Repetitive Behavior Scale-Revised (RBS-R), Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS), and Clinical Global Impression Scale-Severity (CGI-S). SPSS 25.0 program was used in the analysis. p < 0.05 was accepted as the significance level.

Results: It was found that adolescents diagnosed with obsessive-compulsive disorder and trichotillomania had higher autistic trait levels compared to healthy controls, while there was no significant difference between the obsessive-compulsive disorder and trichotillomania groups. While stereotypic, routine, sameness, and restricted repetitive behaviors were more common in the obsessive-compulsive disorder and trichotillomania groups as opposed to healthy controls, it was found that compulsive behavior was more common in the obsessive-compulsive disorder group, and self-injurious behavior was more common in the trichotillomania group compared to healthy controls.

Conclusion: The findings of our study indicate that adolescents diagnosed with trichotillomania, similar to those with obsessive-compulsive disorder, have a higher level of autistic traits and repetitive behaviors. The authors believe it is crucial to focus on the social skill difficulties these adolescents may be experiencing.