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Ethnic minority position and migrant status as risk factors for psychotic symptoms in the general population: a meta-analysis

Published online by Cambridge University Press:  04 September 2018

Edouard Leaune ,
Marie-Jose Dealberto ,
David Luck ,
Stéphanie Grot ,
Halima Zeroug-Vial ,
Emmanuel Poulet  and
Jerome Brunelin
Edouard Leaune*
Affiliation:
Centre Hospitalier Le Vinatier, Bron, France INSERM U1028, CNRS UMR5292, Université Claude Bernard Lyon 1, PSYR2 Team, Lyon Neuroscience Research Center, Lyon, France
Marie-Jose Dealberto
Affiliation:
Centre Hospitalier Saint Jean de Dieu, Lyon, France
David Luck
Affiliation:
Centre de recherche, Institut Universitaire en Santé Mentale de Montréal, Canada Department of Psychiatry, Université de Montréal, Québec, Canada Groupe d'Etude en Emotion et Cognition, Institut Universitaire en Santé Mentale de Montréal, Canada
Stéphanie Grot
Affiliation:
Centre de recherche, Institut Universitaire en Santé Mentale de Montréal, Canada Department of Psychiatry, Université de Montréal, Québec, Canada Groupe d'Etude en Emotion et Cognition, Institut Universitaire en Santé Mentale de Montréal, Canada
Halima Zeroug-Vial
Affiliation:
Centre Hospitalier Le Vinatier, Bron, France
Emmanuel Poulet
Affiliation:
Centre Hospitalier Le Vinatier, Bron, France INSERM U1028, CNRS UMR5292, Université Claude Bernard Lyon 1, PSYR2 Team, Lyon Neuroscience Research Center, Lyon, France
Jerome Brunelin
Affiliation:
Centre Hospitalier Le Vinatier, Bron, France INSERM U1028, CNRS UMR5292, Université Claude Bernard Lyon 1, PSYR2 Team, Lyon Neuroscience Research Center, Lyon, France
*
Author for correspondence: Edouard Leaune, E-mail: [email protected]
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Abstract

Psychotic symptoms (PS) are experienced by a substantial proportion of the general population. When not reaching a threshold of clinical relevance, these symptoms are defined as psychotic experiences (PEs) and may exist on a continuum with psychotic disorders. Unfavorable socio-environmental conditions, such as ethnic minority position (EMP) and migrant status (MS), may increase the risk of developing PS and PEs. We conducted an electronic systematic review and a meta-analysis assessing the role of EMP and MS for the development and persistence of PS in the general population. Sub-group analyses were performed investigating the influence of ethnic groups, host countries, age, types of PS, and scales. Twenty-four studies met our inclusion criteria. EMP was a relevant risk factor for reporting PS [odds ratio (OR) 1.44, 95% confidence interval (CI) 1.22–1.70) and PEs (OR 1.36, 95% CI 1.16–1.60). The greatest risk was observed in people from the Maghreb and the Middle East ethnic groups in Europe (OR 3.30, 95% CI 2.09–5.21), in Hispanic in the USA (OR 1.98, 95% CI 1.43–2.73), and in the Black populations (OR 1.85, 95% CI 1.39–2.47). We found a significant association between MS and delusional symptoms (OR 1.47, 95% CI 1.33–1.62). We found no association between EMP and persistence of PEs.

EMP was associated with increased risk of reporting PS and PEs, and the risk was higher in ethnic groups facing deprivation and discrimination. We found an association between MS and delusional symptoms. These results raise questions about the precise role of socio-environmental factors along the psychosis continuum.

Keywords

Continuumdiscriminationethnicitymigrationpsychosispsychotic experiences
Type
Review Article
Information
Psychological Medicine , Volume 49 , Issue 4 , March 2019 , pp. 545 - 558
Copyright
Copyright © Cambridge University Press 2018 

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References

Adriaanse, M, van Domburgh, L, Hoek, HW, Susser, E, Doreleijers, TA and Veling, W (2015) Prevalence, impact and cultural context of psychotic experiences among ethnic minority youth. Psychological Medicine 45, 637–646.Google Scholar
Akdeniz, C, Tost, H, Streit, F, Haddad, L, Wüst, S, Schäfer, A, Schneider, M, Rietschel, M, Kirsch, P and Meyer-Lindenberg, A (2014) Neuroimaging evidence for a role of neural social stress processing in ethnic minority-associated environmental risk. JAMA Psychiatry 71, 672–680.Google Scholar
André, S and Dronckers, J (2016) Perceived in-group discrimination by first and second generation immigrants from different countries of origin in 27 EU member-states. International Sociology 32, 105–129.Google Scholar
Andrews, G and Peters, L (1998) The psychometric properties of the Composite International Diagnostic Interview. Social Psychiatry and Psychiatric Epidemiology 33, 80–88.Google Scholar
Anglin, DM, Greenspoon, M, Lighty, Q and Ellman, LM (2016 a) Race-based rejection sensitivity partially accounts for the relationship between racial discrimination and distressing attenuated positive psychotic symptoms. Early Intervention in Psychiatry 10, 411–418.Google Scholar
Anglin, DM, Lui, F, Espinosa, A, Tikhonov, A and Ellman, L (2016 b) Ethnic identity, racial discrimination and attenuated psychotic symptoms in an urban population of emerging adults. Early Intervention in Psychiatry 12, 380–390.Google Scholar
Bebbington, P and Nayani, T (1995) The psychosis screening questionnaire. International Journal of Methods in Psychiatric Research 5, 11–19.Google Scholar
Bécares, L, Dewey, ME and Das-Munshi, J (2017) Ethnic density effects for adult mental health: systematic review and meta-analysis of international studies. Psychological Medicine 14, 1–19.Google Scholar
Bentall, RP and Fernyhough, C (2008) Social predictors of psychotic experiences: specificity and psychological mechanisms. Schizophrenia Bulletin 34, 1012–1020.Google Scholar
Bhavsar, V, Fusar-Poli, P and McGuire, P (2017 a) Neighbourhood deprivation is positively associated with detection of the ultra-high risk (UHR) state for psychosis in South East London. Schizophrenia Research 192, 371–376.Google Scholar
Bhavsar, V, Maccabe, JH, Hatch, SL, Hotopf, M, Boydell, J and McGuire, P (2017 b) Subclinical psychotic experiences and subsequent contact with mental health services. British Journal of Psychiatry 3, 64–70.Google Scholar
Binbay, T, Drukker, M, Elbi, H, Tanik, FA, Özkinay, F, Onay, H, Zagli, N, van Os, J and Alptekin, K (2012) Testing the psychosis continuum: differential impact of genetic and nongenetic risk factors and comorbid psychopathology across the entire spectrum of psychosis. Schizophrenia Bulletin 38, 992–1002.Google Scholar
Borenstein, M, Hedges, L, Higgins, J and Rothstein, H (2005) Comprehensive Meta-Analysis Version 2. Engelwood, NJ: Biostat.Google Scholar
Borrell, C, Palència, L, Bartoll, X, Ikram, U and Malmusi, D (2015) Perceived discrimination and health among immigrants in Europe according to national integration policies. International Journal of Environmental Research and Public Health 12, 10687–10699.Google Scholar
Bosqui, TJ, Hoy, K and Shannon, C (2014) A systematic review and meta-analysis of the ethnic density effect in psychotic disorders. Social Psychiatry and Psychiatric Epidemiology 49, 519–529.Google Scholar
Bourque, F, van der Ven, E and Malla, A (2011) A meta-analysis of the risk for psychotic disorders among first- and second-generation immigrants. Psychological Medicine 41, 897–910.Google Scholar
Boydell, J, Bebbington, P, Bhavsar, V, Kravariti, E, van Os, J, Murray, RM and Dutta, R (2013) Unemployment, ethnicity and psychosis. Acta Psychiatrica Scandinavica 127, 202–209.Google Scholar
Brucato, G, Masucci, MD, Arndt, LY, Ben-David, S, Colibazzi, T, Corcoran, CM, Crumbley, AH, Crump, FM, Gill, KE, Kimhy, D, Lister, A, Schobel, SA, Yang, LH, Lieberman, JA and Girgis, RR (2017) Baseline demographics, clinical features and predictors of conversion among 200 individuals in a longitudinal prospective psychosis-risk cohort. Psychological Medicine 47, 1923–1935.Google Scholar
Calkins, ME, Moore, TM, Merikangas, KR, Burstein, M, Satterthwaite, TD, Bilker, WB, Ruparel, K, Chiavacci, R, Wolf, DH, Mentch, F, Qiu, H, Connolly, JJ, Sleiman, PA, Hakonarson, H, Gur, RC and Gur, RE (2014) The psychosis spectrum in a young U.S. community sample: findings from the Philadelphia Neurodevelopmental Cohort. World Psychiatry 13, 296–305.Google Scholar
Calkins, ME, Moore, TM, Satterthwaite, TD, Wolf, DH, Turetsky, BI, Roalf, DR, Merikangas, KR, Ruparel, K, Kohler, CG, Gur, RC and Gur, RE (2017) Persistence of psychosis spectrum symptoms in the Philadelphia Neurodevelopmental Cohort: a prospective two-year follow-up. World Psychiatry 16, 62–76.Google Scholar
Cantor-Graae, E and Selten, JP (2005) Schizophrenia and migration: a meta-analysis and review. The American Journal of Psychiatry 162, 12–24.Google Scholar
Cederlöf, M, Kuja-Halkola, R, Larsson, H, Sjölander, A, Östberg, P, Lundström, S, Kelleher, I and Lichtenstein, P (2017) A longitudinal study of adolescent psychotic experiences and later development of substance use disorder and suicidal behavior. Schizophrenia Research 181, 13–16.Google Scholar
Cicero, DC and Cohn, JR (2017) The role of ethnic identity, self-concept, and aberrant salience in psychotic-like experiences. Cultural Diversity and Ethnic Minority Psychology 24, 101–111.Google Scholar
Cohen, CI and Marino, L (2013) Racial and ethnic differences in the prevalence of psychotic symptoms in the general population. Psychiatric Services 64, 1103–1109.Google Scholar
Cooper, H, Hedges, LV and Valentine, JC (2009) The Handbook of Research Synthesis and Meta-Analysis. New York: Russell Sage Foundation.Google Scholar
Crager, M, Chu, T, Link, B and Rasmussen, A (2013) Forced migration and psychotic symptoms: an analysis of the National Latino and Asian American Study. Journal of Immigrant and Refugee Studies 11, 299–314.Google Scholar
Dealberto, MJ (2010) Ethnic origin and increased risk for schizophrenia in immigrants to countries of recent and longstanding immigration. Acta Psychiatrica Scandinavica 121, 325–339.Google Scholar
Demmin, DL, DeVylder, JE and Hilimire, MR (2017) Screening for sub-threshold psychotic experiences and perceived need for psychological services. Early Intervention in Psychiatry 11, 139–146.Google Scholar
Devylder, JE, Oh, HY, Yang, LH, Cabassa, LJ, Chen, FP and Lukens, EP (2013) Acculturative stress and psychotic-like experiences among Asian and Latino immigrants to the United States. Schizophrenia Research 150, 223–228.Google Scholar
DeVylder, JE, Burnette, D and Yang, LH (2014) Co-occurrence of psychotic experiences and common mental health conditions across four racially and ethnically diverse population samples. Psychological Medicine 44, 3503–3513.Google Scholar
DeVylder, JE, Lehmann, M and Chen, F (2015 a) Social and clinical correlates of the persistence of psychotic experiences in the general population. Schizophrenia Research 169, 286–291.Google Scholar
DeVylder, JE, Lukens, EP, Link, BG and Lieberman, JA (2015 b) Suicidal ideation and suicide attempts among adults with psychotic experiences: data from the Collaborative Psychiatric Epidemiology Surveys. JAMA Psychiatry 72, 219–225.Google Scholar
Dolphin, L, Dooley, B and Fitzgerald, A (2015) Prevalence and correlates of psychotic like experiences in a nationally representative community sample of adolescents in Ireland. Schizophrenia Research 169, 241–247.Google Scholar
Earl, T, Fortuna, LR, Gao, S, Williams, DR, Neighbors, HW, Takeuchi, D and Alegría, M (2015) An exploration of how psychotic-like symptoms are experienced, endorsed, and understood from the National Latino and Asian American Study and National Survey of American Life. Ethnicity and Health 20, 273–292.Google Scholar
Egerton, A, Howes, OD, Houle, S, McKenzie, K, Valmaggia, LR, Bagby, MR, Tseng, HH, Bloomfield, MA, Kenk, M, Bhattacharyya, S, Suridjan, I, Chaddock, CA, Winton-Brown, TT, Allen, P, Rusjan, P, Remington, G, Meyer-Lindenberg, A, McGuire, PK and Mizrahi, R (2017) Elevated striatal dopamine function in immigrants and their children: a risk mechanism for psychosis. Schizophrenia Bulletin 43, 293–301.Google Scholar
Egger, M, Davey Smith, G, Schneider, M and Minder, C (1997) Bias in meta-analysis detected by a simple, graphical test. British Medical Journal 315, 629–634.Google Scholar
Hamilton, TG (2015) The healthy immigrant (migrant) effect: in search of a better native-born comparison group. Social Science Research 54, 353–365.Google Scholar
Higgins, JPT, Thompson, SG, Deeks, JJ and Altman, DG (2003) Measuring inconsistency in meta-analyses. British Medical Journal 327, 557–560.Google Scholar
Honings, S, Drukker, M, Groen, R and van Os, J (2016) Psychotic experiences and risk of self-injurious behaviour in the general population: a systematic review and meta-analysis. Psychological Medicine 46, 237–251.Google Scholar
Janssen, I, Hanssen, M, Bak, M, Bijl, RV, de Graaf, R, Vollebergh, W, McKenzie, K and van Os, J (2003) Discrimination and delusional ideation. The British Journal of Psychiatry 182, 71–76.Google Scholar
Jenkins, R, Mbatia, J, Singleton, N and White, B (2010) Prevalence of psychotic symptoms and their risk factors in urban Tanzania. International Journal of Environmental Research and Public Health 7, 2514–2525.Google Scholar
Johns, LC (2005) Hallucinations in the general population. Current Psychiatry Reports 7, 162–167.Google Scholar
Johns, LC and van Os, J (2001) The continuity of psychotic experiences in the general population. Clinical Psychology Review 21, 1125–1141.Google Scholar
Johns, LC, Cannon, M, Singleton, N, Murray, RM, Farrell, M, Brugha, T, Bebbington, P, Jenkins, R and Meltzer, H (2004) Prevalence and correlates of self-reported psychotic symptoms in the British population. British Journal of Psychiatry 185, 298–305.Google Scholar
Kaymaz, N, Drukker, M, Lieb, R, Wittchen, HU, Werbeloff, N, Weiser, M, Lataster, T and van Os, J (2012) Do subthreshold psychotic experiences predict clinical outcomes in unselected non-help-seeking population-based samples? A systematic review and meta-analysis, enriched with new results. Psychological Medicine 42, 2239–2253.Google Scholar
Kelleher, I and Cannon, M (2011) Psychotic-like experiences in the general population: characterizing a high-risk group for psychosis. Psychological Medicine 41, 1–6.Google Scholar
Kelleher, I, Devlin, N, Wigman, JTW, Kehoe, A, Murtagh, A, Fitzpatrick, C and Cannon, M (2014) Psychotic experiences in a mental health clinic sample: implications for suicidality, multimorbidity and functioning. Psychological Medicine 44, 1615–1624.Google Scholar
Kelleher, I, Wigman, JTW, Harley, M, O'Hanlon, E, Coughlan, H, Rawdon, C, Murphy, J, Power, E, Higgins, NM and Cannon, M (2015) Psychotic experiences in the population: association with functioning and mental distress. Schizophrenia Research 165, 9–14.Google Scholar
Keraite, A, Sumathipala, A, Siriwardhana, C, Morgan, C and Reininghaus, U (2016) Exposure to conflict and disaster: a national survey on the prevalence of psychotic experiences in Sri Lanka. Schizophrenia Research 171, 79–85.Google Scholar
King, M, Nazroo, J, Weich, S, McKenzie, K, Bhui, K, Karlsen, S, Stansfeld, S, Tyrer, P, Blanchard, M, Lloyd, K, McManus, S, Sproston, K and Erens, B (2005) Psychotic symptoms in the general population of England—a comparison of ethnic groups (The EMPIRIC study). Social Psychiatry and Psychiatric Epidemiology 40, 375–381.Google Scholar
Kirkbride, JB (2017) Migration and psychosis: our smoking lung? World Psychiatry 16, 119–120.Google Scholar
Kirkbride, JB, Barker, D, Cowden, F, Stamps, R, Yang, M, Jones, PB and Coid, JW (2008) Psychoses, ethnicity and socio-economic status. The British Journal of Psychiatry 193, 18–24.Google Scholar
Kirkbride, JB, Errazuriz, A, Croudace, TJ, Morgan, C, Jackson, D, Boydell, J, Murray, RM and Jones, PB (2012) Incidence of schizophrenia and other psychoses in England, 1950–2009: a systematic review and meta-analyses. PLoS ONE 7, e31660.Google Scholar
Kirkbride, JB, Jones, PB, Ullrich, S and Coid, JW (2014) Social deprivation, inequality, and the neighborhood-level incidence of psychotic syndromes in East London. Schizophrenia Bulletin 40, 169–180.Google Scholar
Kirkbride, JB, Stochl, J, Zimbron, J, Crane, CM, Metastasio, A, Aguilar, E, Webster, R, Theegala, S, Kabacs, N, Jones, PB and Perez, J (2015) Social and spatial heterogeneity in psychosis proneness in a multilevel case-prodrome-control study. Acta Psychiatrica Scandinavica 132, 283–292.Google Scholar
Kirkbride, JB, Hameed, Y, Ioannidis, K, Ankireddypalli, G, Crane, CM, Nasir, M, Kabacs, N, Metastasio, A, Jenkins, O, Espandian, A, Spyridi, S, Ralevic, D, Siddabattuni, S, Walden, B, Adeoye, A, Perez, J and Jones, PB (2017) Ethnic minority status, age-at-immigration and psychosis risk in rural environments: evidence from the SEPEA Study. Schizophrenia Bulletin 43, 1251–1261.Google Scholar
Kounali, D, Zammit, S, Wiles, N, Sullivan, S, Cannon, M, Stochl, , Jones, P, Mahedy, L, Gage, SH, Heron, J and Lewis, G (2014). Common versus psychopathology-specific risk factors for psychotic experiences and depression during adolescence. Psychological Medicine 44, 2557–2566.Google Scholar
Laurens, KR, Hodgins, S, Maughan, B, Murray, RM, Rutter, ML and Taylor, EA (2007) Community screening for psychotic-like experiences and other putative antecedents of schizophrenia in children aged 9–12 years. Schizophrenia Research 90, 130–146.Google Scholar
Laurens, KR, West, SA, Murray, RM and Hodgins, S (2008) Psychotic-like experiences and other antecedents of schizophrenia in children aged 9–12 years: a comparison of ethnic and migrant groups in the United Kingdom. Psychological Medicine 38, 1103–1111.Google Scholar
Lee, KW, Chan, KW, Chang, WC, Lee, EHM, Hui, CLM and Chen, EYH (2016) A systematic review on definitions and assessments of psychotic-like experiences. Early Intervention in Psychiatry 10, 3–16.Google Scholar
Liberati, A, Altman, DG, Tetzlaff, J, Mulrow, C, Gøtzsche, PC, Ioannidis, JPA, Clarke, M, Devereaux, PJ, Kleijnen, J and Moher, D (2009) The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate healthcare interventions: explanation and elaboration. British Medical Journal 339, b2700.Google Scholar
Lim, CS, Subramaniam, M, Poon, LY, Chong, SA and Verma, S (2011) Cross-ethnic differences in severity of symptomatology of individuals with first-episode schizophrenia spectrum disorder. Early Intervention in Psychiatry 5, 242–248.Google Scholar
Linscott, RJ and van Os, J (2013) An updated and conservative systematic review and meta-analysis of epidemiological evidence on psychotic experiences in children and adults: on the pathway from proneness to persistence to dimensional expression across mental disorders. Psychological Medicine 43, 1133–1149.Google Scholar
McGrath, JJ, Saha, S, Al-Hamzawi, A, Alonso, J, Bromet, EJ, Bruffaerts, R, Caldas-de-Almeida, JM, Chiu, WT, de Jonge, P, Fayyad, J, Florescu, S, Gureje, O, Haro, JM, Hu, C, Kovess-Masfety, V, Lepine, JP, Lim, CC, Mora, ME, Navarro-Mateu, F, Ochoa, S, Sampson, N, Scott, K, Viana, MC and Kessler, RC (2015) Psychotic experiences in the general population: a cross-national analysis based on 31,261 respondents from 18 countries. JAMA Psychiatry 72, 697–705.Google Scholar
McGrath, JJ, Saha, S, Al-Hamzawi, A, Andrade, L, Benjet, C, Bromet, EJ, Browne, MO, Caldas de Almeida, JM, Chiu, WT, Demyttenaere, K, Fayyad, J, Florescu, S, de Girolamo, G, Gureje, O, Haro, JM, Ten Have, M, Hu, C, Kovess-Masfety, V, Lim, CC, Navarro-Mateu, F, Sampson, N, Posada-Villa, J, Kendler, KS and Kessler, RC (2016) The bidirectional associations between psychotic experiences and DSM-IV mental disorders. The American Journal of Psychiatry 173, 997–1006.Google Scholar
Mewes, R, Reich, H, Skoluda, N, Seele, F and Nater, UM (2017) Elevated hair cortisol concentrations in recently fled asylum seekers in comparison to permanently settled immigrants and non-immigrants. Translational Psychiatry 7, e1051.Google Scholar
Morgan, C and Bhugra, D (2010) Principles of Social Psychiatry. Chichester: Wiley-Blackwell.Google Scholar
Morgan, C, Fisher, H, Hutchinson, G, Kirkbride, J, Craig, TK, Morgan, K, Dazzan, P, Boydell, J, Doody, GA, Jones, PB, Murray, RM, Leff, J and Fearon, P (2009) Ethnicity, social disadvantage and psychotic-like experiences in a healthy population based sample. Acta Psychiatrica Scandinavica 119, 226–235.Google Scholar
Morgan, C, Charalambides, M, Hutchinson, G and Murray, RM (2010) Migration, ethnicity, and psychosis: toward a sociodevelopmental model. Schizophrenia Bulletin 36, 655–664.Google Scholar
Murphy, J, Shevlin, M, Houston, J and Adamson, G (2012) A population based analysis of subclinical psychosis and help-seeking behavior. Schizophrenia Bulletin 38, 360–367.Google Scholar
O'Donoghue, B, Nelson, B, Yuen, HP, Lane, A, Wood, S, Thompson, A, Lin, A, McGorry, P and Yung, AR (2015) Social environmental risk factors for transition to psychosis in an Ultra-High Risk population. Schizophrenia Research 161, 150–155.Google Scholar
Oh, H, Yang, LH, Anglin, DM and DeVylder, JE (2014) Perceived discrimination and psychotic experiences across multiple ethnic groups in the United States. Schizophrenia Research 157, 259–265.Google Scholar
Oh, H, Abe, J, Negi, N and DeVylder, J (2015) Immigration and psychotic experiences in the United States: another example of the epidemiological paradox? Psychiatry Research 229, 784–790.Google Scholar
Oh, H, Cogburn, CD, Anglin, D, Lukens, E and DeVylder, J (2016) Major discriminatory events and risk for psychotic experiences among Black Americans. The American Journal of Orthopsychiatry 86, 277–285.Google Scholar
Omer, S, Kirkbride, JB, Pringle, DG, Russell, V, O'Callaghan, E and Waddington, JL (2014) Neighbourhood-level socio-environmental factors and incidence of first episode psychosis by place at onset in rural Ireland: the Cavan-Monaghan First Episode Psychosis Study [CAMFEPS]. Schizophrenia Research 152, 152–157.Google Scholar
Paksarian, D, Merikangas, KR, Calkins, ME and Gur, RE (2016) Racial-ethnic disparities in empirically-derived subtypes of subclinical psychosis among a U.S. Sample of youths. Schizophrenia Research 170, 205–210.Google Scholar
Pechey, R and Halligan, P (2011) The prevalence of delusion-like beliefs relative to sociocultural beliefs in the general population. Psychopathology 44, 106–115.Google Scholar
Pedersen, CB and Cantor-Graae, E (2012) Age at migration and risk of schizophrenia among immigrants in Denmark: a 25-year incidence study. The American Journal of Psychiatry 169, 1117–1118.Google Scholar
Pignon, B, Schürhoff, F, Szöke, A, Geoffroy, PA, Jardri, R, Roelandt, JL, Rolland, B, Thomas, P, Vaiva, G and Amad, A (2017) Sociodemographic and clinical correlates of psychotic symptoms in the general population: findings from the MHGP survey. Schizophrenia Research 193, 336–342.Google Scholar
Poulton, R, Caspi, A, Moffitt, TE, Cannon, M, Murray, R and Harrington, H (2000) Children's self-reported psychotic symptoms and adult schizophreniform disorder: a 15-year longitudinal study. Archives of General Psychiatry 57, 1053–1058.Google Scholar
Radua, J, Ramella-Cravaro, V, Ioannidis, JPA, Reichenberg, A, Phiphopthatsanee, N, Amir, T, Amir, T, Yenn Thoo, H, Oliver, D, Davies, C, Morgan, C, McGuire, P, Murray, RM and Fusar-Poli, P (2018) What causes psychosis? An umbrella review of risk and protective factors. World Psychiatry 17, 49–66.Google Scholar
Reeves, S, Hudson, S, Fletcher, H, Sauer, J, Stewart, R and Howard, R (2003) Are Black Caribbean patients more likely to receive an incorrect diagnosis of very-late-onset schizophrenia-like psychosis than their white British counterparts? The American Journal of Geriatric Psychiatry 11, 674–677.Google Scholar
Rivera, B, Casal, B and Currais, L (2016) The healthy immigrant effect on mental health: determinants and implications for mental health policy in Spain. Administration and Policy in Mental Health and Mental Health Services Research 3, 616–627.Google Scholar
Robins, LN, Wing, J, Wittchen, HU, Helzer, JE, Babor, TF, Burke, J, Farmer, A, Jablenski, A, Pickens, R, Regier, DA, Sartorius, N and Towle, LH (1988) The Composite International Diagnostic Interview. An epidemiologic instrument suitable for use in conjunction with different diagnostic systems and in different cultures. Archives of General Psychiatry 45, 1069–1077.Google Scholar
Saha, S, Scott, JG, Varghese, D and McGrath, JJ (2013) Socio-economic disadvantage and delusional-like experiences: a nationwide population-based study. European Psychiatry 28, 59–63.Google Scholar
Schofield, P, Das-Munshi, J, Becares, L, Morgan, C, Bhavsar, V, Hotopf, M and Hatch, SL (2016) Minority status and mental distress: a comparison of group density effects. Psychological Medicine 46, 3051–3059.Google Scholar
Schwartz, SJ, Unger, JB, Zamboanga, BL and Szapocznik, J (2010) Rethinking the concept of acculturation. The American Psychologist 65, 237–251.Google Scholar
Scott, J, Chant, D, Andrews, G and McGrath, J (2006) Psychotic-like experiences in the general community: the correlates of CIDI psychosis screen items in an Australian sample. Psychological Medicine 36, 231–238.Google Scholar
Selten, JP, Booij, J, Buwalda, B and Meyer-Lindenberg, A (2017) Biological mechanisms whereby social exclusion may contribute to the etiology of psychosis: a narrative review. Schizophrenia Bulletin 43, 287–292.Google Scholar
Selten, JP and Cantor-Graae, E (2007) Hypothesis: social defeat is a risk factor for schizophrenia? The British Journal of Psychiatry 51, s9–12.Google Scholar
Selten, JP, van der Ven, E, Rutten, BPF and Cantor-Graae, E (2013) The social defeat hypothesis of schizophrenia: an update. Schizophrenia Bulletin 39, 1180–1186.Google Scholar
Shevlin, M, Murphy, J, Read, J, Mallett, J, Adamson, G and Houston, JE (2011) Childhood adversity and hallucinations: a community-based study using the National Comorbidity Survey Replication. Social Psychiatry and Psychiatric Epidemiology 46, 1203–1210.Google Scholar
Singh, SP, Winsper, C, Wolke, D and Bryson, A (2014) School mobility and prospective pathways to psychotic-like symptoms in early adolescence: a prospective birth cohort study. Journal of the American Academy of Child 53, 518–527.Google Scholar
Stouten, LH, Veling, W, van der Helm, M, Laan, W and van der Gaag, M (2013) Cognitive deficits and ethnicity: a cohort study of early psychosis patients in The Netherlands. Social Psychiatry and Psychiatric Epidemiology 48, 37–47.Google Scholar
Sun, M, Hu, X, Zhang, W, Guo, R, Hu, A, Mwansisya, TE, Zhou, L, Liu, C, Chen, X, Huang, X, Shi, J, Chiu, HF and Liu, Z (2015) Psychotic-like experiences and associated socio-demographic factors among adolescents in China. Schizophrenia Research 166, 49–54.Google Scholar
Van de Beek, MH, van der Krieke, L, Schoevers, RA and Veling, W (2017) Social exclusion and psychopathology in an online cohort of Moroccan-Dutch migrants: results of the MEDINA-study. PLoS ONE 12, e0179827.Google Scholar
Vanheusden, K, Mulder, CL, van der Ende, J, Selten, JP, van Lenthe, FJ, Verhulst, FC and Mackenbach, JP (2008) Associations between ethnicity and self-reported hallucinations in a population sample of young adults in The Netherlands. Psychological Medicine 38, 1095–1102.Google Scholar
Van Os, J (2003) Is there a continuum of psychotic experiences in the general population? Epidemiologia E Psichiatria Sociale 12, 242–252.Google Scholar
Van Os, J, Hanssen, M, Bijl, RV and Vollebergh, W (2001) Prevalence of psychotic disorder and community level of psychotic symptoms: an urban-rural comparison. Archives of General Psychiatry 58, 663–668.Google Scholar
Van Os, J, Kenis, G and Rutten, BPF (2010) The environment and schizophrenia. Nature 468, 203–212.Google Scholar
Veling, W (2013) Ethnic minority position and risk for psychotic disorders. Current Opinion in Psychiatry 26, 166–171.Google Scholar
Veling, W, Selten, JP, Mackenbach, JP and Hoek, HW (2007 a) Symptoms at first contact for psychotic disorder: comparison between native Dutch and ethnic minorities. Schizophrenia Research 95, 30–38.Google Scholar
Veling, W, Selten, JP, Susser, E, Laan, W, Mackenbach, JP and Hoek, HW (2007 b) Discrimination and the incidence of psychotic disorders among ethnic minorities in The Netherlands. International Journal of Epidemiology 36, 761–768.Google Scholar
Veling, W, Hoek, HW, Selten, JP and Susser, E (2011) Age at migration and future risk of psychotic disorders among immigrants in the Netherlands: a 7-year incidence study. The American Journal of Psychiatry 168, 1278–1285.Google Scholar
Veling, W, Susser, E, Selten, JP and Hoek, HW (2015) Social disorganization of neighborhoods and incidence of psychotic disorders: a 7-year first-contact incidence study. Psychological Medicine 45, 1789–1798.Google Scholar
Verdoux, H and van Os, J (2002) Psychotic symptoms in non-clinical populations and the continuum of psychosis. Schizophrenia Research 54, 59–65.Google Scholar
Von Elm, E, Altman, DG, Egger, M, Pocock, SJ, Gøtzsche, PC and Vandenbroucke, JP and STROBE Initiative (2007) The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies. The Lancet 370, 1453–1457.Google Scholar
Waters, MC (1994) Ethnic and racial identities of second generation black immigrants in New York City. International Migration Review 28, 795–820.Google Scholar
Welham, J, Isohanni, M, Jones, P and McGrath, J (2009) The antecedents of schizophrenia: a review of birth cohort studies. Schizophrenia Bulletin 35, 603–623.Google Scholar
Wigman, JTW, van Winkel, R, Raaijmakers, QAW, Ormel, J, Verhulst, FC, Reijneveld, SA, van Os, J and Vollebergh, WA (2011) Evidence for a persistent, environment-dependent and deteriorating subtype of subclinical psychotic experiences: a 6-year longitudinal general population study. Psychological Medicine 41, 2317–2329.Google Scholar
World Bank Group (2017) World Development Indicators 2017. S.l.: WORLD BANK.Google Scholar
Zammit, S, Kounali, D, Cannon, M, David, AS, Gunnell, D, Heron, J, Jones, PB, Lewis, S, Sullivan, S, Wolke, D and Lewis, G (2013) Psychotic experiences and psychotic disorders at age 18 in relation to psychotic experiences at age 12 in a longitudinal population-based cohort study. The American Journal of Psychiatry 170, 742–750.Google Scholar
Zandi, T, Havenaar, JM, Limburg-Okken, AG, van Es, H, Sidali, S, Kadri, N, van den Brink, W and Kahn, RS (2008) The need for culture sensitive diagnostic procedures: a study among psychotic patients in Morocco. Social Psychiatry and Psychiatric Epidemiology 43, 244–250.Google Scholar
Zandi, T, Havenaar, JM, Smits, M, Limburg-Okken, AG, van Es, H, Cahn, W, Algra, A, Kahn, RS and van den Brink, W (2010) First contact incidence of psychotic disorders among native Dutch and Moroccan immigrants in the Netherlands: influence of diagnostic bias. Schizophrenia Research 119, 27–33.Google Scholar
Zandi, T, Havenaar, JM, Laan, W, Kahn, RS and van den Brink, W (2011) Predictive validity of a culturally informed diagnosis of schizophrenia: a 30 month follow-up study with first episode psychosis. Schizophrenia Research 133, 29–35.Google Scholar
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