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Background:  Half of pediatric‐onset OCD cases remit by adulthood. Studies have demonstrated that initial response to pharmacotherapy, age of onset, prominent hoarding symptoms, and the presence of comorbid tic disorders are associated with long‐term outcome. Our goal was to examine the association between childhood performance on neuropsychological testing and persistence of OCD into adulthood.

Methods:  Twenty‐four children with OCD were followed for an average of 7.5 years into early adulthood. Neuropsychological performance in childhood (<16 years) was measured. The battery included the Wechsler Intelligence Scale for Children (WISC‐III), the Purdue pegboard test, the Rey–Osterreith Complex Figure Task (RCFT) and the Beery–Buktenica test of Visual Motor Integration (VMI). We hypothesized that deficits in fine‐motor skills, visuospatial skills, and nonverbal memory as well as overall …