Elsevier

Schizophrenia Research

Volume 21, Issue 3, 18 September 1996, Pages 161-170
Schizophrenia Research

Explaining sex differences in course and outcome in the functional psychoses

https://doi.org/10.1016/0920-9964(96)00032-1Get rights and content

Abstract

We addressed the following three questions: (i) are there sex differences in outcome in the functional psychoses?, (ii) what is their effect size, and which variables mediate the effect of sex on outcome?, (iii) is the effect of sex diagnosis-specific? In a prospective study of 166 patients with recent onset psychosis, we established that 4-year outcome was more favourable for women. Female patients more often had a remitting illness course (OR = 3.0; 95% CI: 1.5–5.9), were living independently 14% (4–24%) more of the time, had less evidence of negative symptoms over the follow-up period (OR = 0.3; 0.2–0.7) and were more likely to be employed at follow-up (3.6; 1.8–7.6). The findings did not appear diagnosis-specific, although the sample size was small to test for interaction with diagnostic category. Baseline occupational and social adjustment, clinical expression of illness and age and type of onset explained up to 60% of the sex effect. The processes underlying these factors mediate the effect of sex on outcome.

References (35)

  • K. Bardenstein et al.

    Sex differences in affective, schizoaffective, and schizophrenic disorders. A review

    Schiz. Res.

    (1990)
  • A.C. Iager et al.

    A negative symptom rating scale

    Psychiatry Res.

    (1985)
  • N.C. Andreasen et al.

    The family history approach to diagnosis. How useful is it?

    Arch. Gen. Psychiatry

    (1986)
  • M.C. Angermeyer et al.

    Sex and the course of schizophrenia: differences in treated outcomes

    Schiz. Bull.

    (1990)
  • M. Biehl et al.

    Prediction of outcome and utilization of medical services in a prospective study of first-onset schizophrenics — a prospective 5-year follow-up study

    Eur. Arch. Psychiatry Neurol. Sci.

    (1986)
  • E. Cannon-Spoor et al.

    Measurement of premorbid adjustment in chronic schizophrenia

    Schiz. Bull.

    (1982)
  • Castle et al.

    The neurodevelopmental basis of sex differences in schizophrenia

    Psychol. Med.

    (1991)
  • D. Castle et al.

    Sex and schizophrenia: effects of diagnostic stringency, and associations with premorbid variables

    Br. J. Psychiatry

    (1993)
  • S. Childers et al.

    Sex, premorbid functioning, and long-term outcome in DSM-III schizophrenia

    Schiz. Bull.

    (1990)
  • D. Clayton et al.

    Confounding and standardization

  • W.W. Eaton et al.

    Long-term course of hospitalization for schizophrenia: Part I. Risk for rehospitalization

    (1992)
  • A. Foerster et al.

    Premorbid personality in psychosis:effects of sex and diagnosis

    Br. J. Psychiatry

    (1991)
  • J.M. Goldstein

    Sex differences in the course of schizophrenia

    Am. J. Psychiatry

    (1988)
  • I. Harvey et al.

    The functional psychoses in Afro-Caribbeans

    Br. J. Psychiatry

    (1990)
  • A. Jablensky et al.

    Schizophrenia: manifestations, incidence and course in different culture. A world health organization ten-country study

    Psychol. Med. Suppl.

    (1992)
  • A. Jablensky et al.

    WHO collaborative study of impairments and disabilities associated with schizophrenic disorders. A preliminary communication. Objective and methods

    Acta Psychiatr. Scand. Suppl.

    (1980)
  • P.B. Jones et al.

    Premorbid social underachievement in schizophrenia. Results from the Camberwell Collaborative Psychosis Study

    Br. J. Psychiatry

    (1993)
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