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Schizophrenia, Bipolar Disorder and Depression a Discriminant Analysis, using ‘Lifetime’ Psychopathology Ratings

Published online by Cambridge University Press:  02 January 2018

I. F. Brockington ,
A. Roper ,
J. Copas ,
M. Buckley ,
C. E. Andrade ,
P. Wigg ,
A. Farmer ,
C. Kaufman  and
R. Hawley
I. F. Brockington*
Affiliation:
Queen Elizabeth Psychiatric Hospital, Mindelsohn Way, Birmingham B15 2QZ
A. Roper
Affiliation:
City of Birmingham Social Services
J. Copas
Affiliation:
University of Birmingham
M. Buckley
Affiliation:
University of Birmingham
C. E. Andrade
Affiliation:
Department of Psychiatry, Rio de Janeiro Federal University
P. Wigg
Affiliation:
Queen Elizabeth Hospital
A. Farmer
Affiliation:
West Midlands Regional Health Authority
C. Kaufman
Affiliation:
Welsh National School of Medicine
R. Hawley
Affiliation:
Welsh National School of Medicine
*
∗Correspondence
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Abstract

Discriminant and canonical variate analyses were performed using 302 patients, on whom ratings of lifetime psychopathology and course of illness had been made. DSM–III diagnoses were used to form the criterion groups. Bipolar disorder emerged as a distinct grouping, but there are reasons for dissatisfaction with its definition. The remaining patients formed a ‘schizodepressive continuum’, but this also had a tendency to bimodality. It is possible that the distinction between schizophrenia and depression was obscured by inadequacies in the data and the inclusion of excessive numbers of patients with schizoaffective depression in this study.

Type
Papers
Information
The British Journal of Psychiatry , Volume 159 , Issue 4 , October 1991 , pp. 485 - 494
Copyright
Copyright © 1991 The Royal College of Psychiatrists 

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