Association between childhood maltreatment and obsessive-compulsive disorder comorbid with eating disorders: a cross-sectional study.

ABSTRACT

BACKGROUND: Obsessive-compulsive disorder (OCD) and eating disorders (ED) share common features, including the presence of obsessions and compulsions, and they often co-occur. Additionally, there is a significant comorbidity between ED and childhood traumatic experiences (CTE), as well as between CTE and OCD. Various biological and environmental factors have been proposed to explain the connection between ED, OCD, and CTE. This study explores the link between CTE and the comorbidity of ED and OCD, with the hypothesis that specific types of CTE may increase the risk of developing OCD in individuals with ED. METHODS: Participants (N = 562) were enrolled at an eating disorder unit in Montpellier, France, between March 2013 and January 2020. The Childhood Trauma Questionnaire (CTQ), Eating Disorder Examination Questionnaire (EDE-Q), and Mini International Neuropsychiatric Interview (MINI) were used to evaluate childhood maltreatment, assess clinical characteristics associated with ED, and categorize participants into two groups patients with and without OCD. RESULTS: Bivariate analysis revealed that patients with comorbid ED and OCD had higher EDE-Q scores (p < 0.001), more anxiety disorders (p < 0.001), depressive disorders (p = 0.02), post-traumatic stress disorder (PTSD) (p < 0.001), and a higher incidence of sexual abuse (p < 0.001) and physical neglect (p = 0.04) compared to those without OCD. Multivariate analysis showed that the association between CTE and OCD was influenced by the presence of an anxiety disorder (p = 0.01) and a higher EDE-Q total score (p = 0.03), with a significant association with a history of sexual abuse (p = 0.04). CONCLUSIONS: This demonstrates that CTE increases the risk of comorbid OCD in ED patients, correlating with more clinically severe ED and a higher likelihood of anxiety disorders.

This study looked at the link between childhood trauma and the occurrence of both obsessive-compulsive disorder (OCD) and eating disorders (ED). We studied 562 participants who were being treated for eating disorders in Montpellier, France, over a seven-year period. We used various questionnaires to evaluate their childhood experiences, eating disorder symptoms, and the presence of OCD. We found that people with comorbid OCD and ED had more severe eating disorder symptoms and higher rates of anxiety, depression, and PTSD compared to those with just an eating disorder. These individuals were also more likely to have experienced sexual abuse and physical neglect during childhood. Our analysis showed that the connection between childhood trauma and OCD in patients with eating disorders was influenced by the presence of anxiety disorders and more severe eating disorder symptoms. Specifically, a history of sexual abuse was a significant factor. In summary, childhood trauma, especially sexual abuse, increases the risk of having both OCD and an eating disorder. This highlights the importance of screening for OCD and addressing past traumas in patients with eating disorders to provide better, more personalized care.