OCD assessment was performed as described previously and adapted from the Schedule for Affective Disorders and Schizophrenia-Lifetime Version (SADS-LA-R) (Samuels et al. 2006). The Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I) is a semistructured interview for making major DSM-IV Axis I diagnoses and was used in assessment of psychiatric comorbidities (First et al. 2002).
