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Incidence of schizophrenia and other psychoses in ethnic minority groups: results from the MRC AESOP Study.
Psychol Med. 2006 Nov; 36(11):1541-50.PM

Abstract

BACKGROUND

The incidence of schizophrenia in the African-Caribbean population in England is reported to be raised. We sought to clarify whether (a) the rates of other psychotic disorders are increased, (b) whether psychosis is increased in other ethnic minority groups, and (c) whether particular age or gender groups are especially at risk.

METHOD

We identified all people (n=568) aged 16-64 years presenting to secondary services with their first psychotic symptoms in three well-defined English areas (over a 2-year period in Southeast London and Nottingham and a 9-month period in Bristol). Standardized incidence rates and incidence rate ratios (IRR) for all major psychosis syndromes for all main ethnic groups were calculated.

RESULTS

We found remarkably high IRRs for both schizophrenia and manic psychosis in both African-Caribbeans (schizophrenia 9.1, manic psychosis 8.0) and Black Africans (schizophrenia 5.8, manic psychosis 6.2) in men and women. IRRs in other ethnic minority groups were modestly increased as were rates for depressive psychosis and other psychoses in all minority groups. These raised rates were evident in all age groups in our study.

CONCLUSIONS

Ethnic minority groups are at increased risk for all psychotic illnesses but African-Caribbeans and Black Africans appear to be at especially high risk for both schizophrenia and mania. These findings suggest that (a) either additional risk factors are operating in African-Caribbeans and Black Africans or that these factors are particularly prevalent in these groups, and that (b) such factors increase risk for schizophrenia and mania in these groups.

Authors+Show Affiliations

Division of Psychological Medicine, Institute of Psychiatry, King's College, London, UK. p.fearon@iop.kcl.ac.ukNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16938150

Citation

Fearon, Paul, et al. "Incidence of Schizophrenia and Other Psychoses in Ethnic Minority Groups: Results From the MRC AESOP Study." Psychological Medicine, vol. 36, no. 11, 2006, pp. 1541-50.
Fearon P, Kirkbride JB, Morgan C, et al. Incidence of schizophrenia and other psychoses in ethnic minority groups: results from the MRC AESOP Study. Psychol Med. 2006;36(11):1541-50.
Fearon, P., Kirkbride, J. B., Morgan, C., Dazzan, P., Morgan, K., Lloyd, T., Hutchinson, G., Tarrant, J., Fung, W. L., Holloway, J., Mallett, R., Harrison, G., Leff, J., Jones, P. B., & Murray, R. M. (2006). Incidence of schizophrenia and other psychoses in ethnic minority groups: results from the MRC AESOP Study. Psychological Medicine, 36(11), 1541-50.
Fearon P, et al. Incidence of Schizophrenia and Other Psychoses in Ethnic Minority Groups: Results From the MRC AESOP Study. Psychol Med. 2006;36(11):1541-50. PubMed PMID: 16938150.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Incidence of schizophrenia and other psychoses in ethnic minority groups: results from the MRC AESOP Study. AU - Fearon,Paul, AU - Kirkbride,James B, AU - Morgan,Craig, AU - Dazzan,Paola, AU - Morgan,Kevin, AU - Lloyd,Tuhina, AU - Hutchinson,Gerard, AU - Tarrant,Jane, AU - Fung,Wai Lun Alan, AU - Holloway,John, AU - Mallett,Rosemarie, AU - Harrison,Glynn, AU - Leff,Julian, AU - Jones,Peter B, AU - Murray,Robin M, AU - ,, Y1 - 2006/08/29/ PY - 2006/8/30/pubmed PY - 2007/2/7/medline PY - 2006/8/30/entrez SP - 1541 EP - 50 JF - Psychological medicine JO - Psychol Med VL - 36 IS - 11 N2 - BACKGROUND: The incidence of schizophrenia in the African-Caribbean population in England is reported to be raised. We sought to clarify whether (a) the rates of other psychotic disorders are increased, (b) whether psychosis is increased in other ethnic minority groups, and (c) whether particular age or gender groups are especially at risk. METHOD: We identified all people (n=568) aged 16-64 years presenting to secondary services with their first psychotic symptoms in three well-defined English areas (over a 2-year period in Southeast London and Nottingham and a 9-month period in Bristol). Standardized incidence rates and incidence rate ratios (IRR) for all major psychosis syndromes for all main ethnic groups were calculated. RESULTS: We found remarkably high IRRs for both schizophrenia and manic psychosis in both African-Caribbeans (schizophrenia 9.1, manic psychosis 8.0) and Black Africans (schizophrenia 5.8, manic psychosis 6.2) in men and women. IRRs in other ethnic minority groups were modestly increased as were rates for depressive psychosis and other psychoses in all minority groups. These raised rates were evident in all age groups in our study. CONCLUSIONS: Ethnic minority groups are at increased risk for all psychotic illnesses but African-Caribbeans and Black Africans appear to be at especially high risk for both schizophrenia and mania. These findings suggest that (a) either additional risk factors are operating in African-Caribbeans and Black Africans or that these factors are particularly prevalent in these groups, and that (b) such factors increase risk for schizophrenia and mania in these groups. SN - 0033-2917 UR - https://www.unboundmedicine.com/medline/citation/16938150/Incidence_of_schizophrenia_and_other_psychoses_in_ethnic_minority_groups:_results_from_the_MRC_AESOP_Study_ L2 - https://www.cambridge.org/core/product/identifier/S0033291706008774/type/journal_article DB - PRIME DP - Unbound Medicine ER -