METHOD
Design and Participants
Data from a sample of 58 adult outpatients from a previous cross-sectional study were used. All study participants had a diagnosis of schizophrenia without comorbid psychiatric disorders (which was an exclusion criterion) according to the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) Axis I disorders (SCID-I). SCID-I is a semi structured interview used for diagnosis of DSM-IV Axis I disorders. Demographic and clinical information is noted in a previous study. Research ethics board approval and informed consent were obtained before data collection.