Hostname: page-component-848d4c4894-2pzkn Total loading time: 0 Render date: 2024-04-30T17:35:55.570Z Has data issue: false hasContentIssue false

Schizo-affective psychosis: definitions and incidence

Published online by Cambridge University Press:  09 July 2009

I. F. Brockington*
Affiliation:
Institute of Psychiatry, London
J. P. Leff
Affiliation:
Institute of Psychiatry, London
*
1Address for correspondence: Dr I. F. Brockington, Department of Psychiatry, University Hospital of South Manchester, West Didsbury, Manchester M20 8LR.

Synopsis

Eight definitions of schizo-affective psychosis have been compared in a sample of psychotic first admissions. Their mutual concordance is very low (mean 0·19) showing that there is very poor agreement about the meaning of the term ‘schizo-affective’ at present. Ten patients (4·5 % of admissions and 8 % of psychotic admissions within the age group studied) satisfied 3 definitions, a figure which demonstrates the numerical importance of this group of unclassified mental disorders.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Astrachan, B. M., Harrow, M., Adler, D., Brauer, L., Schwartz, A., Schwartz, C. & Tucker, G. (1972). A checklist for the diagnosis of schizophrenia. British Journal of Psychiatry 121, 529539.Google Scholar
Bagshaw, V. E. & McPherson, F. M. (1978). The applicability of the Foulds and Bedford hierarchy model to mania and hypomania. British Journal of Psychiatry 132, 293295.CrossRefGoogle Scholar
Beck, A. T. (1967). Depression, pp. 108122. Hoeber: New York.Google Scholar
Brockington, I. F., Kendell, R. E. & Leff, J. P. (1978). Definitions of schizophrenia: concordance and prediction of outcome. Psychological Medicine 8, 387398.CrossRefGoogle ScholarPubMed
Carpenter, W. T., Strauss, J. S. & Bartko, J. J. (1973). Flexible system for the diagnosis of schizophrenia. Report from the WHO International Pilot Study of Schizophrenia. Science 182, 12751278.Google Scholar
Clayton, P. J., Rodin, L. & Winokur, G. (1968). Family history studies. III. Schizoaffective disorder, clinical and genetic factors including a one to two year follow-up. Comprehensive Psychiatry 9, 3149.Google Scholar
Cohen, J. (1968). Weighted kappa; nominal scale agreement with provision for scaled disagreement or partial credit. Psychological Bulletin 70, 213220.Google Scholar
Cooper, J. E., Kendell, R. E., Gurland, B. J., Sharpe, L., Copeland, J. R. M. & Simon, R. (1972). Psychiatric Diagnosis in New York and London. Maudsley Monograph no. 20. Oxford University Press: London.Google Scholar
Croughan, J. L., Welner, A. & Robins, E. (1974). The group of schizoaffective and related psychoses – critique, record, follow-up and family studies. II. Record studies. Archives of General Psychiatry 31, 632637.CrossRefGoogle Scholar
DSM II (1968). Diagnostic and Statistical Manual of Mental Disorders (2nd edn). American Psychiatric Association: Washington, D.C.Google Scholar
Feighner, J. P., Robins, E., Guze, S. B., Woodruff, R. A., Winokur, G. & Munoz, R. (1972). Diagnostic criteria for use in psychiatric research. Archives of General Psychiatry 26, 5763.Google Scholar
Forrest, A. D. & Hay, A. J. (1973). The schizophrenias: operational definitions. British Journal of Medical Psychology 46, 337346.CrossRefGoogle ScholarPubMed
Foulds, G. A. & Bedford, A. (1975). Hierarchy of classes of personal illness. Psychological Medicine 5, 181192.CrossRefGoogle ScholarPubMed
Kasanin, J. (1933). The acute schizoaffective psychoses. American Journal of Psychiatry 90, 97126.Google Scholar
Kendell, R. E. & Gourlay, J. (1970 a). The clinical distinction between affective psychoses and schizophrenia. British Journal of Psychiatry 117, 261266.Google Scholar
Kendell, R. E. & Gourlay, J. (1970 b). The clinical distinction between psychotic and neurotic depressions. British Journal of Psychiatry 117, 257260.Google Scholar
Langfeldt, G. (1960). Diagnosis and prognosis of schizophrenia. Proceedings of the Royal Society of Medicine 53, 10471052.CrossRefGoogle ScholarPubMed
Leff, J. P., Fischer, M. & Bertelsen, A. (1976). A cross national epidemiological study of mania. British Journal of Psychiatry 129, 428437.Google Scholar
McPherson, F. M., Antram, M. C., Bagshaw, V. E. & Carmichael, S. K. (1977). A test of the hierarchical model of personal illness. British Journal of Psychiatry 131, 5658.CrossRefGoogle ScholarPubMed
Ollerenshaw, D. P. (1973). The classification of the functional psychoses. British Journal of Psychiatry 122, 517530.Google Scholar
Perris, C. (1974). A study of cycloid psychoses. Acta Psychiatrica Scandinavica Supplement, 253.Google ScholarPubMed
Procci, W. R. (1976). Schizoaffective psychosis: fact or fiction? Archives of General Psychiatry 33, 11671178.CrossRefGoogle ScholarPubMed
Schneider, K. (1959). Clinical Psychopathology (trans. Hamilton, M. W.), pp. 133134. Grune and Stratton: New York.Google Scholar
Spitzer, R. L., Endicott, J. & Robins, E. (1975). Research Diagnostic Criteria for a Selected Group of Functional Disorders. Instrument Number 58. New York State Psychiatric Institute: New York.Google Scholar
Stephens, J. H., Astrup, C. & Mangrum, J. C. (1966). Prognostic factors in recovered and deteriorated schizophrenics. American Journal of Psychiatry 122, 11161121.CrossRefGoogle ScholarPubMed
Taylor, M. A., Abrams, R. & Gaztanaga, P. (1975). Manic depressive illness and schizophrenia: a partial validation of research diagnostic criteria utilizing neuropsychological testing. Comprehensive Psychiatry 16, 9196.CrossRefGoogle ScholarPubMed
Welner, A., Croughan, J. L. & Robins, E. (1974). The group of schizoaffective and related psychoses – critique, record, follow-up and family studies. I. A persistent enigma. Archives of General Psychiatry 31, 628631.Google Scholar
Wing, J. K. & Hailey, A. M. (1972). Evaluating a Community Psychiatric Service: The Camherwell Register, 1964–1971. Oxford University Press: London.Google Scholar
Wing, J. K., Cooper, J. E. & Sartorius, N. (1974). The Measurement and Classification of Psychiatric Symptoms. Cambridge University Press: London.Google Scholar
World Health Organization (1973). The International Pilot Study of Schizophrenia. WHO: Geneva.Google Scholar