BJPsych Open
Volume 4, Issue 6, 2018, Pages 510-518

Subclinical psychosis in adult migrants and ethnic minorities: Systematic review and meta-analysis (Review) (Open Access)

Tortelli A.* , Nakamura A. , Suprani F. , Schürhoff F. , Van Der Waerden J. , Szöke A. , Tarricone I. , Pignon B.
  • a U955-15, INSERM, Créteil and Pôle GHT Psychiatrie Précarité, 1, rue Cabanis, Paris, 75014, France
  • b UMR-S 1136, INSERM, Pierre Louis Institute of Epidemiology and Public Health, Sorbonne Universités, L'Université Pierre et Marie Curie, France
  • c Department of Medical and Surgical Sciences, Bologna University, Italy
  • d U955-15, INSERM, Pôle de Psychiatrie et d'Addictologie, DHU PePSY, Hôpitaux Universitaires Henri-Mondor, AP-HP, Fondation FondaMental Scientific Cooperation Foundation, Creteil, F-94010, France, Faculté de Médecine, University Paris-Est Créteil, France
  • e UMR-S 1136, INSERM, Pierre Louis Institute of Epidemiology and Public Health, Sorbonne Universités, L'Université Pierre et Marie Curie, France
  • f U955-15, INSERM, Pôle de Psychiatrie et d'Addictologie, DHU PePSY, Hôpitaux Universitaires Henri-Mondor, AP-HP, Fondation FondaMental Scientific Cooperation Foundation, Creteil, F-94010, France
  • g Department of Medical and Surgical Sciences, Bologna University, Italy
  • h U955-15, INSERM, Pôle de Psychiatrie et d'Addictologie, DHU PePSY, Hôpitaux Universitaires Henri-Mondor, AP-HP, Fondation FondaMental Scientific Cooperation Foundation, Creteil, F-94010, France, Faculté de Médecine, University Paris-Est Créteil, France

Abstract

Background It is well established that migration and ethnic minority status are risk factors for psychotic disorders. Recent studies have aimed to determine if they are also associated with subclinical psychosis (psychotic-like experiences and schizotypal traits). Aims We aimed to determine to what extent migrant and ethnic minority groups are associated with higher risk of subclinical psychosis. Method We conducted a systematic review, using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement, and examined findings by ethnicity, migrant status, outcomes of subclinical psychosis and host country. A meta-analysis was carried out with robust variance estimation where possible, to handle statistically dependent effect size estimates. Results We included 28 studies (19 studies on psychotic-like experiences and 9 studies on schizotypal traits) and found that ethnicity, but not migrant status, was associated with current and lifetime psychotic-like experiences. In the narrative analysis, we observed the effect of psychosocial risk factors on this association: Black ethnicity groups showed consistent increased prevalence of current and lifetime psychotic-like experiences compared with the reference population across countries. Conclusions More generalisable and standardised cohort studies of psychotic-like experiences and schizotypal traits in relation to migration/ethnicity are necessary to examine the effects of exposures and outcomes in different contexts, and to understand the underlying mechanisms of the association between subclinical psychosis and migrant and ethnic minority status. Declaration of interest None. © The Royal College of Psychiatrists 2018.

Author Keywords

Migrants psychosis continuum ethnic minorities subclinical psychosis psychotic-like experiences

Index Keywords

effect size schizotypal personality disorder ethnic group priority journal risk factor Review ethnicity high risk population systematic review human migrant psychosis
Link
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064168801&doi=10.1192%2fbjo.2018.68&partnerID=40&md5=ade3966dbad764ed38d25bcce005a03e
DOI: 10.1192/bjo.2018.68
ISSN: 20564724
Cited by: 2
Original Language: English