Co-Morbid Social Phobia in Schizophrenia

Abstract

Background: The co-morbid occurrence of anxiety disorders and schizophrenia has recently begun to be investigated. Social anxiety may be especially important to diagnose and manage among patients with schizophrenia. Aim: To investigate the prevalence and correlates of social phobia in patients with schizophrenia. Method: Diagnosis of schizophrenia and schizoaffective disorders as well as co-morbid anxiety disorders was established according to DSM-IV and the Structured Clinical Interview for Diagnosis (SCID-P Hebrew version). Severity of psychotic symptoms and social anxiety symptoms was assessed with the Positive and Negative Symptom Scale (PANSS) and the Liebowitz Social Anxiety Scale (LSAS). Results: The cohort studied included 117 patients with schizophrenia. Thirteen patients were diagnosed as suffering from co-morbid social phobia (11%). There was a tendency for patients with co-morbid social phobia to have higher severity PANSS total score. There was a significant correlation between the score of the LSAS `fear' and PANSS positive subscales. Avoidance scores were higher among patients with negative signs. Conclusion: Co-morbidity of schizophrenia and social anxiety disorder is not rare among patients with schizophrenia. Treatment implications need be further investigated.