Four behavioural syndromes of schizophrenia: a replication in a second inner-London epidemiological sample

Abstract

In a previous large epidemiological survey of patients with strictly defined schizophrenia in the London borough of Camden, we extracted four behavioural syndromes (Social withdrawal, Thought disturbance, Anti-social behaviour and Depressed behaviour) by factor analysis of MRC Social Behaviour Schedule (SBS) data. These syndromes had significant differential relationships to symptoms assessed using the Manchester Scale (MS), symptom-derived syndromes, and social functioning variables. A second inner-London epidemiological survey of schizophrenia in South Westminster using identical methodology found the same four behavioural syndromes with identical core component items. The same four behavi..