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Influence of depressive symptoms and premorbid adjustment on factor structure of phenomenology of schizophrenia: a study from India

Published online by Cambridge University Press:  16 April 2020

Parmanand Kulhara  and
Ajit Avasthi
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Abstract

This study investigated the nature of factor structure of schizophrenia syndromes using a sample of 151 patients with schizophrenia according to DSM-IV. The patients were assessed on the Scale for the Assessment of Positive Symptoms (SAPS), the Scale for the Assessment of Negative Symptoms (SANS), Hamilton Depression Rating Scale (HDRS) and the Phillips Rating Scale of Premorbid Adjustment in schizophrenia. Three factors—negative syndrome, reality-distortion syndrome and disorganized syndrome were extracted when only SAPS and SANS were analysed. Addition of the Phillips Rating Scale scores to SAPS and SANS ratings in the factorial equation led to splitting of the negative syndrome though reality-distortion and disorganized syndromes remained stable. Factor analysis of the HDRS scores with SAPS and SANS ratings resulted in the HDRS loading highly on reality-distortion syndrome and splitting of negative syndrome. Factor analysis of all the variables taken together resulted in delineation of four factors. The study suggests a link between depression and reality distortion. Apathy and anhedonia seem to be linked to premorbid adjustment.

Keywords

SchizophreniaPsychopathologyDepressionFactor structure
Type
Original article
Information
European Psychiatry , Volume 18 , Issue 5 , August 2003 , pp. 226 - 232
Copyright
Copyright © Éditions scientifiques et médicales Elsevier SAS 2003

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