[Phenomenology of patients with early and adult onset obsessive-compulsive disorder].

Objective: To evaluate potential differences in socio-demographic and clinical characteristics (obsessive-compulsive symptomatology, axis I and II comorbidity) between OCD adults with an early age at onset (< 18 years) and later onset, (> or = 18 yrs).

Design: Clinical controlled study.

Setting: Anxiety and Mood Disorders Unit, Department of Neuroscience, University of Turin.