Examining weekly relationships between obsessive-compulsive and eating disorder symptoms.

Despite the severity and high rate of co-occurrence between eating disorders (ED) and obsessive-compulsive disorder (OCD), less is known regarding the longitudinal sequencing of their comorbidity and whether and how their symptoms may influence one another over time. The current study sought to answer these questions by testing if a bidirectional, longitudinal relationship exists between ED symptoms and OCD obsessions and compulsions.