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Ethnicity, class and schizotypy.

M S Sharpley1, E R Peters

  • 1Department of Social Psychiatry, Institute of Psychiatry, Denmark Hill, London SE5 8RS, UK.

Social Psychiatry and Psychiatric Epidemiology
|December 11, 1999
PubMed
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African-Caribbean individuals show higher rates of delusional ideation compared to white individuals in the UK. Social class significantly influences the expression of these delusions, particularly in working-class African-Caribbeans.

Area of Science:

  • Psychiatry and Mental Health
  • Cross-cultural Psychology
  • Social Psychiatry

Background:

  • Investigates potential ethnic differences in schizotypy rates between African-Caribbeans and white populations in the UK.
  • Explores the role of social adversity and social class in relation to schizophrenia and schizotypy.
  • Examines differences in neurotic pathology across ethnic and social class groups.

Purpose of the Study:

  • To determine if African-Caribbeans exhibit higher schizotypy than white individuals in the UK general population.
  • To assess the influence of social class and ethnicity on schizotypy and neurotic pathology.
  • To differentiate between general schizotypy and specific delusional ideation in ethnic groups.

Main Methods:

  • Four groups (N=12 each) were studied: African-Caribbean working-class, African-Caribbean middle-class, white middle-class, and white working-class.

Related Experiment Videos

  • Participants were interviewed using standardized instruments: The Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE), The Peters et al. Delusions Inventory (PDI), The Delusions-Symptoms-State-Inventory (DSSI), and The Hospital Anxiety and Depression Scale (HADS).

    • Main Results:

    • African-Caribbean participants scored higher on the Peters et al. Delusions Inventory (PDI) compared to white participants.
    • A significant interaction between ethnicity and social class was observed; African-Caribbean working-class individuals scored highest on the PDI and Delusions-Symptoms-State-Inventory (DSSI).
    • Middle-class individuals scored higher on 'impulsive non-conformity' (O-LIFE) than working-class individuals, an unexpected finding.

    Conclusions:

    • Delusional ideation, not general schizotypy, appears elevated in the African-Caribbean population.
    • The higher rates of delusional ideation may reflect social reality or psychosis proneness, requiring further investigation.
    • Social class is a significant factor in the manifestation of delusional ideation among African-Caribbeans.