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Moore D, Eaton S, Polari A, McGorry P, Nelson B, O'Donoghue B. The association between social deprivation and the rate of identification of individuals at Ultra-High Risk for psychosis and transition to psychosis. Int J Soc Psychiatry 2023; 69:294-303. [PMID: 35470718 DOI: 10.1177/00207640221087608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND There is a higher incidence of psychotic disorders in neighbourhoods of greater social deprivation. However, it is not known whether this represents a causal relationship, as the stage at which social deprivation exerts its influence on the development of psychotic disorders is yet to be elucidated. We aimed to investigate the association between neighbourhood-level social deprivation and the rate of identification of individuals at Ultra-High Risk for psychosis (UHR), as well as the risk of transition to psychosis in UHR individuals. METHODS The cohort included all young people aged 15 to 24 identified as UHR attending an Early Intervention clinic in northwestern Melbourne over a 5-year period (2012-2016). Australian census data were used to obtain the at-risk population and social deprivation information according to the postcode of residence. Levels of social deprivation were arranged into quartiles. Poisson regression was used to calculate rate ratios and Cox regression analysis determined hazard ratios. RESULTS Of the 461 young people identified as UHR, 11.1% (n = 49) lived in the most affluent neighbourhoods (Quartile 1) compared to 36.7% (n = 162) in the most deprived neighbourhoods (Quartile 4). There was a 35% higher rate of identification of young people who were UHR from the most deprived neighbourhoods (aIRR = 1.35, 95% CI [0.98, 1.86]). Over a median follow-up of approximately 10 months (308 days (IQR: 188-557), 17.5% (n = 77) were known to have transitioned to a full-threshold psychotic disorder. Residing in a neighbourhood of above average deprivation had a hazard ratio of 2.05 (95% CI [0.88, 4.80]) for risk of transition, when controlling for age, sex and substance use. CONCLUSIONS These findings provide more support that EI services should be funded as per the expected incidence of psychotic disorders.
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Affiliation(s)
- Danielle Moore
- Orygen, Parkville, VIC, Australia.,Centre for Youth Mental Health, University of Melbourne, VIC, Australia
| | - Scott Eaton
- Orygen, Parkville, VIC, Australia.,Centre for Youth Mental Health, University of Melbourne, VIC, Australia
| | - Andrea Polari
- Orygen, Parkville, VIC, Australia.,Centre for Youth Mental Health, University of Melbourne, VIC, Australia
| | - Patrick McGorry
- Orygen, Parkville, VIC, Australia.,Centre for Youth Mental Health, University of Melbourne, VIC, Australia
| | - Barnaby Nelson
- Orygen, Parkville, VIC, Australia.,Centre for Youth Mental Health, University of Melbourne, VIC, Australia
| | - Brian O'Donoghue
- Orygen, Parkville, VIC, Australia.,Centre for Youth Mental Health, University of Melbourne, VIC, Australia
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2
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Barbato M, Liu L, Bearden CE, Cadenhead KS, Cornblatt BA, Keshavan M, Mathalon DH, McGlashan TH, Perkins DO, Seidman LJ, Stone W, Tsuang MT, Walker EF, Woods SW, Cannon TD, Addington J. Migrant status, clinical symptoms and functional outcome in youth at clinical high risk for psychosis: findings from the NAPLS-3 study. Soc Psychiatry Psychiatr Epidemiol 2022; 58:559-568. [PMID: 36348056 DOI: 10.1007/s00127-022-02383-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 10/28/2022] [Indexed: 11/09/2022]
Abstract
PURPOSE Migrant status is a known risk factor for psychosis, but the underlying causes of this vulnerability are poorly understood. Recently, studies have begun to explore whether migrant status predicts transition to psychosis in individuals at clinical high risk (CHR) for psychosis. Results, however, have been inconclusive. The present study assessed the impact of migrant status on clinical symptoms and functional outcome in individuals at CHR for psychosis who took part in the NAPLS-3 study. METHODS Participants' migrant status was classified as native-born, first-generation, or second-generation migrant. Clinical symptoms were assessed using the Structured Interview for Psychosis-Risk Syndromes (SIPS); functional outcome was measured using the Global Functioning Scales:Social and Role (GF:S; GF:R). Assessments were conducted at baseline, 12-months, 18-months, and 24-months follow-up. Generalized linear mixed models for repeated measures were used to examine changes over time and differences between groups. RESULTS The overall sample included 710 individuals at CHR for psychosis (54.2% males; Age: M = 18.19; SD = 4.04). A mixed model analysis was conducted, and no significant differences between groups in symptoms or functioning were observed at any time point. Over time, significant improvement in symptoms and functioning was observed within each group. Transition rates did not differ across groups. CONCLUSION We discuss potential factors that might explain the lack of group differences. Overall, migrants are a heterogeneous population. Discerning the impact of migration from that of neighborhood ethnic density, social disadvantage or socio-economic status of different ethnic groups could help better understand vulnerability and resilience to psychosis.
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Affiliation(s)
- Mariapaola Barbato
- Department of Psychology, College of Natural and Health Sciences, Zayed University, Dubai, UAE
| | - Lu Liu
- Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Carrie E Bearden
- Departments of Psychiatry and Biobehavioral Sciences and Psychology, Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, CA, USA
| | | | | | - Matcheri Keshavan
- Department of Psychiatry, Harvard Medical School at Beth Israel Deaconess Medical Center and Massachusetts General Hospital, Boston, MA, USA
| | - Daniel H Mathalon
- Department of Psychiatry, UCSF, and SFVA Medical Center, San Francisco, CA, USA
| | | | - Diana O Perkins
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
| | - Larry J Seidman
- Department of Psychiatry, Harvard Medical School at Beth Israel Deaconess Medical Center and Massachusetts General Hospital, Boston, MA, USA
| | - William Stone
- Department of Psychiatry, Harvard Medical School at Beth Israel Deaconess Medical Center and Massachusetts General Hospital, Boston, MA, USA
| | - Ming T Tsuang
- Department of Psychiatry, UCSD, San Diego, CA, USA
- Institute of Genomic Medicine, University of California, La Jolla, CA, USA
| | - Elaine F Walker
- Departments of Psychology and Psychiatry, Emory University, Atlanta, GA, USA
| | - Scott W Woods
- Department of Psychiatry, Yale University, New Haven, CT, USA
| | - Tyrone D Cannon
- Department of Psychiatry, Yale University, New Haven, CT, USA
- Department of Psychology, Yale University, New Haven, CT, USA
| | - Jean Addington
- Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
- Mathison Centre for Mental Health Research & Education, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.
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3
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Waszczuk K, Tyburski E, Rek-Owodziń K, Plichta P, Rudkowski K, Podwalski P, Bielecki M, Mak M, Bober A, Misiak B, Sagan L, Michalczyk A, Kucharska-Mazur J, Samochowiec J. Relationship between White Matter Alterations and Pathophysiological Symptoms in Patients with Ultra-High Risk of Psychosis, First-Episode, and Chronic Schizophrenia. Brain Sci 2022; 12:brainsci12030354. [PMID: 35326310 PMCID: PMC8946295 DOI: 10.3390/brainsci12030354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/20/2022] [Accepted: 03/03/2022] [Indexed: 12/03/2022] Open
Abstract
Some symptoms of schizophrenia might be present before full-blown psychosis, so white matter changes must be studied both in individuals with emerging psychosis and chronic schizophrenia. A total of 86 patients—12 ultra-high risk of psychosis (UHR), 20 first episode psychosis (FEP), 54 chronic schizophrenia (CS), and 33 healthy controls (HC)—underwent psychiatric examination and diffusion tensor imaging (DTI) in a 3-Tesla MRI scanner. We assessed fractional anisotropy (FA) and mean diffusivity (MD) of the superior longitudinal fasciculus (SLF) and inferior longitudinal fasciculus (ILS). We found that CS patients had lower FA than FEP patients (p = 0.025) and HC (p = 0.088), and higher MD than HC (p = 0.037) in the right SLF. In the CS group, we found positive correlations of MD in both right ILF (rho = 0.39, p < 0.05) and SLF (rho = 0.43, p < 0.01) with disorganization symptoms, as well as negative correlation of FA in the right ILF with disorganization symptoms (rho = −0.43, p < 0.05). Among UHR individuals, we found significant negative correlations between MD in the left ILF and negative (r = −0.74, p < 0.05) and general symptoms (r = −0.77, p < 0.05). However promising, these findings should be treated as preliminary, and further research must verify whether they can be treated as potential biomarkers of psychosis.
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Affiliation(s)
- Katarzyna Waszczuk
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Ernest Tyburski
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Katarzyna Rek-Owodziń
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Piotr Plichta
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Krzysztof Rudkowski
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Piotr Podwalski
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Maksymilian Bielecki
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Monika Mak
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Adrianna Bober
- Institute of Psychology, University of Szczecin, Krakowska 69 Street, 71-017 Szczecin, Poland
| | - Błażej Misiak
- Department of Psychiatry, Division of Consultation Psychiatry and Neuroscience, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Leszek Sagan
- Department of Neurosurgery, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1 Street, 71-252 Szczecin, Poland
| | - Anna Michalczyk
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Jolanta Kucharska-Mazur
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Jerzy Samochowiec
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
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4
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Moore D, Castagnini E, Mifsud N, Geros H, Sizer H, Addington J, van der Gaag M, Nelson B, McGorry P, O'Donoghue B. The associations between migrant status and ethnicity and the identification of individuals at ultra-high risk for psychosis and transition to psychosis: a systematic review. Soc Psychiatry Psychiatr Epidemiol 2021; 56:1923-1941. [PMID: 33641006 DOI: 10.1007/s00127-021-02047-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 02/12/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE Migrant and ethnic minority populations exhibit a higher incidence of psychotic disorders. The Ultra-High Risk for psychosis (UHR) paradigm provides an opportunity to explore the stage at which such factors influence the development of psychosis. In this systematic review, we collate and appraise the literature on the association between ethnicity and migrant status and the rate of identification of individuals at UHR, as well as their rate of transition to psychosis. METHODS We conducted a systematic review in the Ovid Medline, PsychINFO, Pubmed, CINAHL and EMBASE databases according to PRISMA guidelines. We included studies written in English that included an UHR cohort, provided a measure of ethnicity or migrant status, and examined the incidence, rate, or risk of UHR identification or transition to psychosis. RESULTS Of 2182 unique articles identified, seven fulfilled the criteria. One study found overrepresentation of UHR individuals from black ethnic groups, while another found underrepresentation. Two studies found increased rates of transition among certain ethnic groups and a further two found no association. Regarding migrant status, one study found that first-generation migrants were underrepresented in an UHR sample. Lastly, a lower transition rate in migrant populations was identified in one study, while two found no association. CONCLUSION Rates of UHR identification and transition according to ethnic and migrant status were inconsistent and insufficient to conclusively explain higher incidences of psychotic disorders among these groups. We discuss the clinical implications and avenues for future research, which is required to clarify the nature of the associations.
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Affiliation(s)
- Danielle Moore
- Orygen, 35 Poplar Rd, Parkville, Melbourne, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Emily Castagnini
- Orygen, 35 Poplar Rd, Parkville, Melbourne, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Nathan Mifsud
- Orygen, 35 Poplar Rd, Parkville, Melbourne, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Hellen Geros
- Orygen, 35 Poplar Rd, Parkville, Melbourne, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Holly Sizer
- Orygen, 35 Poplar Rd, Parkville, Melbourne, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Jean Addington
- Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Mark van der Gaag
- Department of Psychosis Research, Parnassia Psychiatric Institute, The Hague, The Netherlands
- Department of Clinical, Neuro and Developmental Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Barnaby Nelson
- Orygen, 35 Poplar Rd, Parkville, Melbourne, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Patrick McGorry
- Orygen, 35 Poplar Rd, Parkville, Melbourne, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Brian O'Donoghue
- Orygen, 35 Poplar Rd, Parkville, Melbourne, VIC, 3052, Australia.
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia.
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5
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Joaquim HPG, Costa AC, Pereira CAC, Talib LL, Bilt MMV, Loch AA, Gattaz WF. Plasmatic endocannabinoids are decreased in subjects with ultra-high risk of psychosis. Eur J Neurosci 2021; 55:1079-1087. [PMID: 34716624 DOI: 10.1111/ejn.15509] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/13/2021] [Accepted: 10/17/2021] [Indexed: 11/27/2022]
Abstract
The onset of frank psychosis is usually preceded by a prodromal phase characterized by attenuated psychotic symptoms. Currently, research on schizophrenia prodromal phase (ultra-high risk for psychosis [UHR]) has focused on the risk of developing psychosis, on the transition to full blown psychosis and on its prediction. Neurobiological differences between UHR individuals who fully recover (remitters) versus those who show persistent/progressive prodromal symptoms (nonremitters) have been little explored. The endocannabinoid system constitutes a neuromodulatory system that plays a major role in brain development, synaptic plasticity, emotional behaviours and cognition. It comprises two cannabinoid receptors (CB1/CB2), two endocannabinoid ligands, arachidonylethanolamide (AEA) and 2-arachidonoylglycerol (2AG) along with their inactivation enzymes. Despite much evidence that the endocannabinoid system is imbalanced during psychosis, very little is known about it in UHR. Therefore, we aimed to quantify the plasma endocannabinoid levels in UHR and healthy controls (HC) and verify if these metabolites could differentiate between remitters and nonremitters. Circulating concentrations of AEA (p = .003) and 2AG (p < .001) were lower in UHR when compared with HC, with no difference between remitters and nonremitters. Regarding clinical evolution, it was observed that out of 91 UHRs initially considered, 16 had psychiatric complaints (3 years of follow-up). Considering those subjects, there were weak correlations between clinical parameters and plasma concentrations of endocannabinoids. Our results suggest that the endocannabinoids are imbalanced before frank psychosis and that changes can be seen in plasma of UHR individuals. These molecules proved to be potential biomarkers to identify individuals in the prodromal phase of psychosis.
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Affiliation(s)
- Helena P G Joaquim
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBioN), Conselho Nacional de Desenvolvimento Científico e Tecnológico, São Paulo, Brazil
| | - Alana C Costa
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBioN), Conselho Nacional de Desenvolvimento Científico e Tecnológico, São Paulo, Brazil
| | - Cícero A C Pereira
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBioN), Conselho Nacional de Desenvolvimento Científico e Tecnológico, São Paulo, Brazil
| | - Leda L Talib
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBioN), Conselho Nacional de Desenvolvimento Científico e Tecnológico, São Paulo, Brazil
| | - Martinus M V Bilt
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBioN), Conselho Nacional de Desenvolvimento Científico e Tecnológico, São Paulo, Brazil
| | - Alexandre A Loch
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBioN), Conselho Nacional de Desenvolvimento Científico e Tecnológico, São Paulo, Brazil
| | - Wagner F Gattaz
- Laboratory of Neuroscience (LIM-27), Department and Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBioN), Conselho Nacional de Desenvolvimento Científico e Tecnológico, São Paulo, Brazil
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6
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Waszczuk K, Rek-Owodziń K, Tyburski E, Mak M, Misiak B, Samochowiec J. Disturbances in White Matter Integrity in the Ultra-High-Risk Psychosis State-A Systematic Review. J Clin Med 2021; 10:jcm10112515. [PMID: 34204171 PMCID: PMC8201371 DOI: 10.3390/jcm10112515] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/29/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022] Open
Abstract
Schizophrenia is a severe and disabling mental illness whose etiology still remains unclear. The available literature indicates that there exist white matter (WM) abnormalities in people with schizophrenia spectrum disorders. Recent developments in modern neuroimaging methods have enabled the identification of the structure, morphology, and function of the underlying WM fibers in vivo. The purpose of this paper is to review the existing evidence about WM abnormalities in individuals at ultra-high risk of psychosis (UHR) with the use of diffusion tensor imaging (DTI) available from the National Center for Biotechnology Information PubMed (Medline) and Health Source: Nursing/Academic Edition databases. Of 358 relevant articles identified, 25 papers published in the years 2008–2020 were ultimately included in the review. Most of them supported the presence of subtle aberrations in WM in UHR individuals, especially in the superior longitudinal fasciculus (SLF), the inferior longitudinal fasciculus (ILF), and the inferior fronto-occipital fasciculus (IFOF). These alterations may therefore be considered a promising neurobiological marker for the risk of psychosis. However, due to methodological discrepancies and the relative scarcity of evidence, further investigation is called for, especially into connectome analysis in UHR patients.
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Affiliation(s)
- Katarzyna Waszczuk
- Department of Psychiatry, Pomeranian Medical University, Broniewskiego 26 Street, 71-460 Szczecin, Poland;
- Correspondence: ; Tel./Fax: +48-91-35-11-358
| | - Katarzyna Rek-Owodziń
- Department of Health Psychology, Pomeranian Medical University, Broniewskiego 26 Street, 71-460 Szczecin, Poland; (K.R.-O.); (M.M.)
| | - Ernest Tyburski
- Institute of Psychology, SWPS University of Social Sciences and Humanities, Tadeusza Kutrzeby 10 Street, 61-719 Poznan, Poland;
| | - Monika Mak
- Department of Health Psychology, Pomeranian Medical University, Broniewskiego 26 Street, 71-460 Szczecin, Poland; (K.R.-O.); (M.M.)
| | - Błażej Misiak
- Department of Genetics, Wroclaw Medical University, K. Marcinkowskiego 1 Street, 50-368 Wroclaw, Poland;
| | - Jerzy Samochowiec
- Department of Psychiatry, Pomeranian Medical University, Broniewskiego 26 Street, 71-460 Szczecin, Poland;
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7
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O'Donoghue B, Geros H, Sizer H, Addington J, Amminger GP, Beaden CE, Cadenhead KS, Cannon TD, Cornblatt BA, Berger GE, Chen EYH, de Haan L, Hartmann JA, Hickie IB, Ising HK, Lavoie S, Lin A, Markulev C, Mathalon DH, McGlashan TH, Mifsud NG, Mossaheb N, Nieman DH, Nordentoft M, Perkins DO, Riecher-Rössler A, Schäfer MR, Schlögelhofer M, Seidman LJ, Smesny S, Thompson A, Tsuang MT, van der Gaag M, Verma S, Walker EF, Wood SJ, Woods SW, Yuen HP, Yung AR, McGorry PD, Nelson B. The association between migrant status and transition in an ultra-high risk for psychosis population. Soc Psychiatry Psychiatr Epidemiol 2021; 56:943-952. [PMID: 33399885 DOI: 10.1007/s00127-020-02012-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 12/08/2020] [Indexed: 12/30/2022]
Abstract
PURPOSE Migrant status is one of the most replicated and robust risk factors for developing a psychotic disorder. This study aimed to determine whether migrant status in people identified as Ultra-High Risk for Psychosis (UHR) was associated with risk of transitioning to a full-threshold psychotic disorder. METHODS Hazard ratios for the risk of transition were calculated from five large UHR cohorts (n = 2166) and were used to conduct a meta-analysis using the generic inverse-variance method using a random-effects model. RESULTS 2166 UHR young people, with a mean age of 19.1 years (SD ± 4.5) were included, of whom 221 (10.7%) were first-generation migrants. A total of 357 young people transitioned to psychosis over a median follow-up time of 417 days (I.Q.R.147-756 days), representing 17.0% of the cohort. The risk of transition to a full-threshold disorder was not increased for first-generation migrants, (HR = 1.08, 95% CI 0.62-1.89); however, there was a high level of heterogeneity between studies The hazard ratio for second-generation migrants to transition to a full-threshold psychotic disorder compared to the remainder of the native-born population was 1.03 (95% CI 0.70-1.51). CONCLUSIONS This meta-analysis did not find a statistically significant association between migrant status and an increased risk for transition to a full-threshold psychotic disorder; however, several methodological issues could explain this finding. Further research should focus on examining the risk of specific migrant groups and also ensuring that migrant populations are adequately represented within UHR clinics.
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Affiliation(s)
- Brian O'Donoghue
- Orygen, Melbourne, Australia. .,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia.
| | - Hellen Geros
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Holly Sizer
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Jean Addington
- Department of Psychiatry, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - G Paul Amminger
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia.,Department of Psychiatry, Medical University of Vienna, Vienna, Austria
| | - Carrie E Beaden
- Department of Psychiatry and Biobehavioral Sciences, UCLA, Los Angeles, CA, USA
| | | | - Tyrone D Cannon
- Department of Psychology, Yale University, New Haven, CT, USA
| | | | - Gregor Emanuel Berger
- Child and Adolescent Psychiatric Service of the Canton of Zurich, Zürich, Switzerland
| | - Eric Y H Chen
- Department of Psychiatry, University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Lieuwe de Haan
- Department of Psychiatry, Academic Medical Center, Amsterdam, The Netherlands
| | - Jessica A Hartmann
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Ian B Hickie
- Brain and Mind Research Institute, University of Sydney, Sydney, Australia
| | - Helga K Ising
- Department of Psychosis Research, Parnassia Psychiatric Institute, The Hague, The Netherlands
| | - Suzie Lavoie
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | | | - Connie Markulev
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Daniel H Mathalon
- Department of Psychiatry, UCSF, San Francisco, CA, USA.,SFVA Medical Center, San Francisco, CA, USA
| | | | - Nathan G Mifsud
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Nilufar Mossaheb
- Department of Psychiatry, Medical University of Vienna, Vienna, Austria
| | - Dorien H Nieman
- Department of Psychiatry, Academic Medical Center, Amsterdam, The Netherlands
| | | | - Diana O Perkins
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
| | | | - Miriam R Schäfer
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | | | - Larry J Seidman
- Department of Psychiatry, Harvard Medical School at Beth Israel Deaconess Medical Center, Boston, MA, USA.,Massachusetts General Hospital, Boston, MA, USA
| | - Stephan Smesny
- Department of Psychiatry, University Hospital Jena, Jena, Germany
| | - Andrew Thompson
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | | | - Mark van der Gaag
- Department of Psychosis Research, Parnassia Psychiatric Institute, The Hague, The Netherlands.,Department of Clinical, Neuro and Developmental Psychology, Amsterdam Public Health Research Institute, Vrije Universiteit , Amsterdam, The Netherlands
| | - Swapna Verma
- Institute of Mental Health, Singapore, Singapore
| | - Elaine F Walker
- Department of Psychology, Emory University, Atlanta, GA, USA
| | - Stephen J Wood
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Scott W Woods
- Department of Psychiatry, Yale University, New Haven, CT, USA
| | - Hok Pan Yuen
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Alison Ruth Yung
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia.,Institute of Brain, Behaviour and Mental Health, University of Manchester, Manchester, England
| | - Patrick D McGorry
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - Barnaby Nelson
- Orygen, Melbourne, Australia.,Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
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8
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Nogueira AS, Andrade JC, Serpa MH, Alves TM, Freitas EL, Hortêncio L, van de Bilt MT, Rössler W, Gattaz WF, Loch AA. Influence of migration on the thought process of individuals at ultra-high risk for psychosis. BRAZILIAN JOURNAL OF PSYCHIATRY 2020; 43:285-288. [PMID: 32756811 PMCID: PMC8136387 DOI: 10.1590/1516-4446-2019-0685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 03/13/2020] [Indexed: 08/27/2023]
Abstract
Objective: To assess the influence of migration on the psychopathological presentation of individuals at ultra-high risk for psychosis (UHR) in São Paulo, Brazil. Methods: This study is part of the Subclinical Symptoms and Prodromal Psychosis (SSAPP) project, a cohort study in São Paulo, Brazil, designed to follow individuals at UHR. After screening with the Prodromal Questionnaire (PQ) and a clinical interview, the Global Assessment of Functioning (GAF) was administered, a neuropsychological assessment was performed, sociodemographic and migration data were obtained. We then analyzed UHR individuals who had migration data to see if migration had any effect on their cognition and psychopathology. Chi-square tests were used for categorical variables, and Student’s t test or analysis of variance (ANOVA) were used for nonparametric and parametric distributions, respectively. Results: The sample was composed of 42 at-risk subjects, of whom 5 had a migration history in the past two generations. Those with migration history showed significantly more formal thought disturbances (p = 0.012) and sleeping problems (p = 0.033) compared to those without. Conclusions: Our data reinforce migration as a risk factor for psychosis in developing countries as well, and highlights the importance of studying the specific effect of this factor in UHR psychopathology.
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Affiliation(s)
- Arthur S Nogueira
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Julio C Andrade
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Mauricio H Serpa
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), São Paulo, SP, Brazil.,Laboratório de Neuroimagem (LIM-21), Departamento e Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, USP, São Paulo, SP, Brazil
| | - Tania M Alves
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Elder L Freitas
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Lucas Hortêncio
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Martinus T van de Bilt
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), São Paulo, SP, Brazil
| | - Wulf Rössler
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), São Paulo, SP, Brazil.,Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland.,Department of Psychiatry and Psychotherapy, Charité University of Medicine, Berlin, Germany
| | - Wagner F Gattaz
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), São Paulo, SP, Brazil
| | - Alexandre A Loch
- Laboratório de Neurociências (LIM 27), Instituto de Psiquiatria, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil.,Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), São Paulo, SP, Brazil
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9
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Geros H, Sizer H, Mifsud N, Reynolds S, Kim DJ, Eaton S, McGorry P, Nelson B, O'Donoghue B. Migrant status and identification as ultra-high risk for psychosis and transitioning to a psychotic disorder. Acta Psychiatr Scand 2020; 141:52-59. [PMID: 31520527 DOI: 10.1111/acps.13099] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/04/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND Certain migrant groups are more likely to develop a psychotic disorder compared to the native-born populations, and a younger age at migration is associated with greater risk. However, it is not known at which stage migration has an effect on the development of psychotic disorders. We examined whether migrants were more likely to be identified as ultra-high risk for psychosis (UHR) compared to native-born young people and whether migrant status was associated with the risk of transition to a full-threshold psychotic disorder. METHODS The cohort included all young people aged 15-24 who were identified as UHR at a specialist clinic over a five-year period (2012-16). Australian census data were used to obtain the at-risk population. Poisson regression was used to calculate rate ratios and Cox regression analysis determined hazard ratios. RESULTS 467 young people were identified as UHR, of which 13.5% (n = 63) were born overseas. First-generation migrants were 2.6-fold less likely to be identified as UHR compared to Australian-born young people (IRR = 0.39, 95% CI [0.30, 0.51], P < 0.001). There was no difference between migrant and native-born young people in their risk of transitioning to a psychotic disorder (HR = 0.90, 95% CI [0.39, 2.08], P = 0.81). CONCLUSIONS UHR first-generation migrants may be under-accessing mental health services.
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Affiliation(s)
- H Geros
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Vic., Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Vic., Australia
| | - H Sizer
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Vic., Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Vic., Australia
| | - N Mifsud
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Vic., Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Vic., Australia
| | - S Reynolds
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Vic., Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Vic., Australia
| | - D J Kim
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Vic., Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Vic., Australia
| | - S Eaton
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Vic., Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Vic., Australia
| | - P McGorry
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Vic., Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Vic., Australia
| | - B Nelson
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Vic., Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Vic., Australia
| | - B O'Donoghue
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, Vic., Australia.,Centre for Youth Mental Health, The University of Melbourne, Parkville, Vic., Australia.,Orygen Youth Health, Parkville, Vic., Australia
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10
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Addington J, Farris M, Stowkowy J, Santesteban-Echarri O, Metzak P, Kalathil MS. Predictors of Transition to Psychosis in Individuals at Clinical High Risk. Curr Psychiatry Rep 2019; 21:39. [PMID: 31037392 DOI: 10.1007/s11920-019-1027-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
PURPOSE OF REVIEW Current research is examining predictors of the transition to psychosis in youth who are at clinical high risk based on attenuated psychotic symptoms (APS). Determining predictors of the development of psychosis is important for an improved understanding of mechanisms as well as the development of preventative strategies. The purpose is to review the most recent literature identifying predictors of the transition to psychosis in those who are already assessed as being at risk. RECENT FINDINGS Multidomain models, in particular, integrated models of symptoms, social functioning, and cognition variables, achieve better predictive performance than individual factors. There are many methodological issues; however, several solutions have now been described in the literature. For youth who already have APS, predicting who may go on to later develop psychosis is possible. Several studies are underway in large consortiums that may overcome some of the methodological concerns and develop improved means of prediction.
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Affiliation(s)
- Jean Addington
- Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada.
| | - Megan Farris
- Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
| | - Jacqueline Stowkowy
- Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
| | - Olga Santesteban-Echarri
- Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
| | - Paul Metzak
- Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
| | - Mohammed Shakeel Kalathil
- Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
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11
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Rice S, Polari A, Thompson A, Hartmann J, McGorry P, Nelson B. Does reason for referral to an ultra-high risk clinic predict transition to psychosis? Early Interv Psychiatry 2019; 13:318-321. [PMID: 29873447 DOI: 10.1111/eip.12679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 04/02/2018] [Accepted: 04/26/2018] [Indexed: 01/27/2023]
Abstract
AIM To examine reasons for referral to a specialist ultra-high risk (UHR) for psychosis clinic and whether these reasons are associated with risk for subsequent transition to psychosis. METHODS Data for 127 patients referred to the Personal Assessment and Crisis Evaluation clinic were collected by medical record audit. Time to transition to psychosis was calculated from date of referral to time at which the young person was judged by their treating team to be experiencing onset of first episode psychosis. RESULTS Patients were primarily referred due to attenuated psychotic symptoms and depression (40.2%). There was an association with transition, with those in the attenuated psychotic-symptom-only category being more likely to transition. CONCLUSION As well as attenuated psychotic symptoms, depression and anxiety were also important reasons for referral indicating that there is a broad clinical phenotype of young people presenting to UHR clinics. Clinical reason for referral may index level of risk for subsequent transition to psychosis.
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Affiliation(s)
- Simon Rice
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia.,Youth Mood Clinic, Orygen Youth Health, Northwestern Mental Health, Melbourne, Australia
| | - Andrea Polari
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia.,Personal Assessment and Crisis Evaluation (PACE) Clinic, Orygen Youth Health, Northwestern Mental Health, Melbourne, Australia
| | - Andrew Thompson
- Division of Mental Health and Wellbeing, The University of Warwick, Coventry, UK
| | - Jessica Hartmann
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Patrick McGorry
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia.,Personal Assessment and Crisis Evaluation (PACE) Clinic, Orygen Youth Health, Northwestern Mental Health, Melbourne, Australia
| | - Barnaby Nelson
- Orygen, The National Centre of Excellence in Youth Mental Health, Melbourne, Australia.,Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia.,Personal Assessment and Crisis Evaluation (PACE) Clinic, Orygen Youth Health, Northwestern Mental Health, Melbourne, Australia
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12
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Leaune E, Dealberto MJ, Luck D, Grot S, Zeroug-Vial H, Poulet E, Brunelin J. Ethnic minority position and migrant status as risk factors for psychotic symptoms in the general population: a meta-analysis. Psychol Med 2019; 49:545-558. [PMID: 30178719 DOI: 10.1017/s0033291718002271] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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.
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Affiliation(s)
| | | | - David Luck
- Centre de recherche, Institut Universitaire en Santé Mentale de Montréal,Canada
| | - Stéphanie Grot
- Centre de recherche, Institut Universitaire en Santé Mentale de Montréal,Canada
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13
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Loch AA, Freitas EL, Hortêncio L, Chianca C, Alves TM, Serpa MH, Andrade JC, van de Bilt MT, Gattaz WF, Rössler W. Hearing spirits? Religiosity in individuals at risk for psychosis-Results from the Brazilian SSAPP cohort. Schizophr Res 2019; 204:353-359. [PMID: 30266512 DOI: 10.1016/j.schres.2018.09.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/06/2018] [Accepted: 09/17/2018] [Indexed: 12/15/2022]
Abstract
In the last decades, biological and environmental factors related to psychosis were investigated in individuals at ultra-risk for psychosis (UHR) to predict conversion. Although religion relates to psychosis in a variety of ways, it is understudied in subclinical samples. Therefore, we assessed the interplay between religion and prodromal symptoms in 79 UHR and 110 control individuals. They were interviewed with the Duke University Religion Index and the Structured Interview for Prodromal Syndromes (SIPS). Organizational religious activity, a measure of how often someone attends churches/temples, was positively related to perceptual abnormalities/hallucinations (Spearman's rho = 0.262, p = 0.02). This relationship was replicated in a path analysis model (β = 0.342, SE = 0.108, p = 0.002), as well as a link between organizational religious activity and lower ideational richness (β = 0.401, SE = 0.105, p = 0.000) with no influence of sex, age, religious denomination, or socioeconomic class. Intrinsic religious activity was negatively correlated with suspiciousness (SIPS P2) (β = -0.028, SE = 0.009, p = 0.002), and non-organizational religious activity was correlated with higher ideational richness (N5) (β = -0.220, SE = 0.097, p = 0.023). We hypothesize that subjects with subclinical psychosis may possibly use churches and other religious organizations to cope with hallucinations. Indeed, Brazil is characterized by a religious syncretism and a strong influence of Spiritism in the popular culture. The mediumistic idea that some might be able to hear and/or see spirits is probably employed to explain subclinical hallucinations in the lay knowledge. Our results emphasize the importance of assessing religion and other region-specific aspects of various cultures when studying UHR individuals. This sort of assessment would enhance understanding of differences in conversion rates, and would help to transpose prevention programs from high-income countries to other settings.
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Affiliation(s)
- Alexandre Andrade Loch
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Cientifico e Tecnológico, Brazil.
| | - Elder Lanzani Freitas
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil
| | - Lucas Hortêncio
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil
| | - Camille Chianca
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil
| | - Tania Maria Alves
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil
| | - Maurício Henriques Serpa
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Cientifico e Tecnológico, Brazil
| | - Julio Cesar Andrade
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil
| | - Martinus Theodorus van de Bilt
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Cientifico e Tecnológico, Brazil
| | - Wagner Farid Gattaz
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Cientifico e Tecnológico, Brazil
| | - Wulf Rössler
- Laboratory of Neuroscience (LIM 27), Institute of Psychiatry, University of São Paulo, Brazil; Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), Conselho Nacional de Desenvolvimento Cientifico e Tecnológico, Brazil; Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland; Department of Psychiatry and Psychotherapy, Charité University of Medicine, Berlin, Germany
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14
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Deriu V, Moro MR, Benoit L. Early intervention for everyone? A review of cross-cultural issues and their treatment in ultra-high-risk (UHR) cohorts. Early Interv Psychiatry 2018; 12:796-810. [PMID: 29708310 DOI: 10.1111/eip.12671] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 02/06/2018] [Accepted: 03/13/2018] [Indexed: 12/15/2022]
Abstract
AIM Over the past 20 years, early management of psychosis has become both a research and policy priority. In Western countries, psychotic disorders appear more prevalent in migrant and minority ethnic groups than in native or dominant groups. Moreover, disparities exist in health conditions and access to care among immigrants and minority ethnic groups, compared with native-born and majority groups. Appropriate early detection tools are necessary for the different groups. METHODS This systematic review provides a synthesis of the assessment and discussion of transcultural issues in ultra-high-risk (UHR) cohorts. The Medline database was searched via PubMed for peer-reviewed articles published in English from 1995 to 2017. All 79 studies included are prospective UHR cohort studies that used the Comprehensive Assessment of At-Risk Mental States (CAARMS). RESULTS In UHR cohort studies that used the CAARMS, transcultural data (native language, ethnicity, place of birth, migration) are rarely collected, and inadequate ability to speak the dominant language is a common exclusion criterion. When they are included, the CAARMS scores differ between some minorities and the native-born majority group. CONCLUSIONS This systematic review demonstrates barriers to the access to participation in early intervention research for migrants and ethnic minorities. This selection bias may result in lower validity for the CAARMS among these populations and thus in inadequate intervention programmes. Along with targeted studies, minorities' access to participation in UHR cohorts should be improved through 3 tools: interpreters at recruitment and for administration of CAARMS, a guide to cultural formulation and transcultural data collection.
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Affiliation(s)
| | - Marie Rose Moro
- Head of department at Maison de Solenn, Hôpital Cochin (AP-HP), Paris, France.,Professor of Child and Adolescent Psychiatry, Faculty of Medicine, Université Paris Descartes, Paris, France
| | - Laelia Benoit
- Maison de Solenn, Hôpital Cochin (AP-HP), Unité INSERM/CESP, Paris, France
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15
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Hunter SA, Lawrie SM. Imaging and Genetic Biomarkers Predicting Transition to Psychosis. Curr Top Behav Neurosci 2018; 40:353-388. [PMID: 29626338 DOI: 10.1007/7854_2018_46] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The search for diagnostic and prognostic biomarkers in schizophrenia care and treatment is the focus of many within the research community. Longitudinal cohorts of patients presenting at elevated genetic and clinical risk have provided a wealth of data that has informed our understanding of the development of schizophrenia and related psychotic disorders.Imaging follow-up of high-risk cohorts has demonstrated changes in cerebral grey matter of those that eventually transition to schizophrenia that predate the onset of symptoms and evolve over the course of illness. Longitudinal follow-up studies demonstrate that observed grey matter changes can be employed to differentiate those who will transition to schizophrenia from those who will not prior to the onset of the disorder.In recent years our understanding of the genetic makeup of schizophrenia has advanced significantly. The development of modern analysis techniques offers researchers the ability to objectively quantify genetic risk; these have been successfully applied within a high-risk paradigm to assist in differentiating between high-risk individuals who will subsequently become unwell and those who will not.This chapter will discuss the application of imaging and genetic biomarkers within high-risk groups to predict future transition to schizophrenia and related psychotic disorders. We aim to provide an overview of current approaches focussing on grey matter changes that are predictive of future transition to illness, the developing field of genetic risk scores and other methods being developed to aid clinicians in diagnosis and prognosis.
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Affiliation(s)
- Stuart A Hunter
- Division of Psychiatry, Royal Edinburgh Hospital, University of Edinburgh, Edinburgh, UK.
| | - Stephen M Lawrie
- Division of Psychiatry, Royal Edinburgh Hospital, University of Edinburgh, Edinburgh, UK
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16
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Studerus E, Ramyead A, Riecher-Rössler A. Prediction of transition to psychosis in patients with a clinical high risk for psychosis: a systematic review of methodology and reporting. Psychol Med 2017; 47:1163-1178. [PMID: 28091343 DOI: 10.1017/s0033291716003494] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND To enhance indicated prevention in patients with a clinical high risk (CHR) for psychosis, recent research efforts have been increasingly directed towards estimating the risk of developing psychosis on an individual level using multivariable clinical prediction models. The aim of this study was to systematically review the methodological quality and reporting of studies developing or validating such models. METHOD A systematic literature search was carried out (up to 14 March 2016) to find all studies that developed or validated a clinical prediction model predicting the transition to psychosis in CHR patients. Data were extracted using a comprehensive item list which was based on current methodological recommendations. RESULTS A total of 91 studies met the inclusion criteria. None of the retrieved studies performed a true external validation of an existing model. Only three studies (3.5%) had an event per variable ratio of at least 10, which is the recommended minimum to avoid overfitting. Internal validation was performed in only 14 studies (15%) and seven of these used biased internal validation strategies. Other frequently observed modeling approaches not recommended by methodologists included univariable screening of candidate predictors, stepwise variable selection, categorization of continuous variables, and poor handling and reporting of missing data. CONCLUSIONS Our systematic review revealed that poor methods and reporting are widespread in prediction of psychosis research. Since most studies relied on small sample sizes, did not perform internal or external cross-validation, and used poor model development strategies, most published models are probably overfitted and their reported predictive accuracy is likely to be overoptimistic.
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Affiliation(s)
- E Studerus
- University of Basel Psychiatric Hospital,Center for Gender Research and Early Detection,Basel,Switzerland
| | - A Ramyead
- Department of Psychiatry,Weill Institute for Neurosciences,University of California (UCSF),San Francisco,CA,USA
| | - A Riecher-Rössler
- University of Basel Psychiatric Hospital,Center for Gender Research and Early Detection,Basel,Switzerland
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17
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McHugh MJ, McGorry PD, Yung AR, Lin A, Wood SJ, Hartmann JA, Nelson B. Cannabis-induced attenuated psychotic symptoms: implications for prognosis in young people at ultra-high risk for psychosis. Psychol Med 2017; 47:616-626. [PMID: 27821204 DOI: 10.1017/s0033291716002671] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Cannabis use shows a robust dose-dependent relationship with psychosis risk among the general population. Despite this, it has been difficult to link cannabis use with risk for transitioning to a psychotic disorder among individuals at ultra-high risk (UHR) for psychosis. The present study examined UHR transition risk as a function of cannabis use characteristics which vary substantially between individuals including age of first use, cannabis abuse severity and a history of cannabis-induced attenuated psychotic symptoms (APS). METHOD Participants were 190 UHR individuals (76 males) recruited at entry to treatment between 2000 and 2006. They completed a comprehensive baseline assessment including a survey of cannabis use characteristics during the period of heaviest use. Outcome was transition to a psychotic disorder, with mean time to follow-up of 5.0 years (range 2.4-8.7 years). RESULTS A history of cannabis abuse was reported in 58% of the sample. Of these, 26% reported a history of cannabis-induced APS. These individuals were 4.90 (95% confidence interval 1.93-12.44) times more likely to transition to a psychotic disorder (p = 0.001). Greater severity of cannabis abuse also predicted transition to psychosis (p = 0.036). However, this effect was mediated by higher abuse severity among individuals with a history of cannabis-induced APS. CONCLUSIONS Findings suggest that cannabis use poses risk in a subpopulation of UHR individuals who manifest cannabis-induced APS. Whether this reflects underlying genetic vulnerability requires further study. Nevertheless, findings reveal an important early marker of risk with potentially significant prognostic utility for UHR individuals.
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Affiliation(s)
- M J McHugh
- Orygen,The National Centre for Excellence in Youth Mental Health,35 Poplar Road,Parkville,VIC 3052,Australia
| | - P D McGorry
- Orygen,The National Centre for Excellence in Youth Mental Health,35 Poplar Road,Parkville,VIC 3052,Australia
| | - A R Yung
- Institute of Brain, Behaviour and Mental Health,University of Manchester,Manchester,UK
| | - A Lin
- Telethon Kids Institute,University of Western Australia,WA 6008,Australia
| | - S J Wood
- Orygen,The National Centre for Excellence in Youth Mental Health,35 Poplar Road,Parkville,VIC 3052,Australia
| | - J A Hartmann
- Orygen,The National Centre for Excellence in Youth Mental Health,35 Poplar Road,Parkville,VIC 3052,Australia
| | - B Nelson
- Orygen,The National Centre for Excellence in Youth Mental Health,35 Poplar Road,Parkville,VIC 3052,Australia
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O'Donoghue B, Roche E, Lane A. Neighbourhood level social deprivation and the risk of psychotic disorders: a systematic review. Soc Psychiatry Psychiatr Epidemiol 2016; 51:941-50. [PMID: 27178430 DOI: 10.1007/s00127-016-1233-4] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 05/04/2016] [Indexed: 11/24/2022]
Abstract
PURPOSE The incidence of psychotic disorders varies according to the geographical area, and it has been investigated whether neighbourhood level factors may be associated with this variation. The aim of this systematic review is to collate and appraise the literature on the association between social deprivation and the incidence or risk for psychotic disorders. METHOD A systematic review was conducted, and studies were included if they were in English, provided a measure of social deprivation for more than one geographically defined area and examined either the correlation, rate ratio or risk of psychotic disorder. A defined search strategy was undertaken with Medline, CINAHL Plus and PsychInfo databases. RESULTS A total of 409 studies were identified in the search, of which 28 fulfilled the inclusion criteria. Of these, four examined the association between social deprivation at the time of birth, three examined the putative prodrome of psychosis or those at ultra-high risk (UHR) for psychosis, and 23 examined the time at presentation with a first episode of psychosis (FEP) (one study examined two time points and one study included both UHR and FEP). Three of the studies that examined the level of social deprivation at birth found an association with a higher risk for psychotic disorders and increased social deprivation. Seventeen of the 23 studies found that there was a higher risk or rate of psychotic disorders in more deprived neighbourhoods at the time of presentation; however, adjusting for individual factors tended to weaken this association. Limited research has been conducted in the putative prodromal stage and has resulted in conflicting findings. CONCLUSIONS Research conducted to date has not definitively identified whether the association is a result of social causation or social drift; however, the findings do have significant implications for service provision, such as the location and access of services.
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Affiliation(s)
- Brian O'Donoghue
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia.
- Orygen, The National Centre for Excellence in Youth Mental Health, 35 Poplar rd, Parkville, VIC, 3052, Australia.
- University College Dublin, Belfield, Dublin 4, Ireland.
| | - Eric Roche
- University College Dublin, Belfield, Dublin 4, Ireland
- DETECT Early Intervention for Psychosis Service, Dublin, Ireland
| | - Abbie Lane
- University College Dublin, Belfield, Dublin 4, Ireland
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O'Donoghue B, Lyne JP, Renwick L, Lane A, Madigan K, Staines A, O'Callaghan E, Clarke M. Neighbourhood characteristics and the incidence of first-episode psychosis and duration of untreated psychosis. Psychol Med 2016; 46:1367-1378. [PMID: 27032697 DOI: 10.1017/s003329171500286x] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The incidence of psychotic disorders varies between geographical areas and it has been hypothesized that neighbourhood-level factors may influence this variation. It is also plausible that the duration of untreated psychosis (DUP) is associated with neighbourhood characteristics. The aims of this study were to determine whether the incidence of first-episode psychosis (FEP) and the DUP are associated with the level of social deprivation, fragmentation, social capital and population density. METHOD All individuals with a FEP from a geographical defined catchment area over a 5-year period were included. Age-standardized incidence rates were calculated for each neighbourhood factor. RESULTS A total of 292 cases of FEP were included in the study and 45% had a diagnosis of a schizophrenia-spectrum disorder. The age standardized incidence rate of FEP in the most deprived area was 72.4 [95% confidence interval (CI) 26.4-162.7] per 100 000 person-years compared with 21.5 (95% CI 17.6-26.0) per 100 000 person-years in the most affluent areas. This represents a 3.4-fold increase in FEP incidence in the most deprived areas. The incidence of FEP was also increased in neighbourhoods that were more socially fragmented [incidence rate ratio (IRR) = 2.40, 95% CI 1.05-5.51, p = 0.04] and there was a trend for the incidence to be increased in neighbourhoods with lower social capital (IRR = 1.43, 95% CI 0.99-2.06, p = 0.05). The median DUP was 4 months and was higher in more socially fragmented neighbourhoods. CONCLUSIONS The incidence of psychotic disorders is related to neighbourhood factors and it may be useful to consider neighbourhood factors when allocating resources for early intervention services.
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Affiliation(s)
- B O'Donoghue
- The Centre for Youth Mental Health,University of Melbourne,Melbourne,VIC,Australia
| | - J P Lyne
- Department of Psychiatry,Royal College of Surgeons in Ireland,Dublin,Republic of Ireland
| | - L Renwick
- School of Nursing, Midwifery and Social Work,University of Manchester,Manchester,UK
| | - A Lane
- Department of Psychiatry,School of Medicine,University College Dublin,Belfield,Dublin 4,Republic of Ireland
| | - K Madigan
- DETECT,Early Intervention for Psychosis Service,Blackrock,Dublin,Republic of Ireland
| | - A Staines
- School of Nursing and Human Services,Dublin City University,Dublin,Republic of Ireland
| | - E O'Callaghan
- Department of Psychiatry,School of Medicine,University College Dublin,Belfield,Dublin 4,Republic of Ireland
| | - M Clarke
- Department of Psychiatry,School of Medicine,University College Dublin,Belfield,Dublin 4,Republic of Ireland
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Nordgaard J, Henriksen MG. Self-disorders: A promising Candidate for Early Detection. Scand J Child Adolesc Psychiatr Psychol 2016. [DOI: 10.21307/sjcapp-2016-003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Neighbourhood characteristics and the rate of identification of young people at ultra-high risk for psychosis. Schizophr Res 2015; 169:214-216. [PMID: 26391282 DOI: 10.1016/j.schres.2015.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 08/29/2015] [Accepted: 09/01/2015] [Indexed: 11/22/2022]
Abstract
There is a higher incidence of psychotic disorders in more socially deprived neighbourhoods and a higher risk in migrants living in neighbourhoods of low ethnic density. Yet it is unclear at what stage these neighbourhood environmental factors exert an influence on the risk for psychosis. 166 Ultra high risk for psychosis young people were included in this study. Neighbourhood data were obtained from the Australian Bureau of Statistics. There was a trend for UHR individuals to reside in relatively more deprived areas and there was no association between the rate of identification of UHR migrants and neighbourhood ethnic density.
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Stigma as a stressor and transition to schizophrenia after one year among young people at risk of psychosis. Schizophr Res 2015; 166:43-8. [PMID: 26036814 DOI: 10.1016/j.schres.2015.05.027] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 05/05/2015] [Accepted: 05/14/2015] [Indexed: 01/13/2023]
Abstract
According to stress-vulnerability models, social stressors contribute to the onset of schizophrenia. Stigma and discrimination associated with mental illness may be a stressor for young people at risk of psychosis even prior to illness onset, but quantitative longitudinal data on this issue are lacking. We examined the cognitive appraisal of stigma-related stress as predictor of transition to schizophrenia among young people at risk of psychosis. In Zürich, Switzerland, 172 participants between 13 and 35years old and with either high or ultra-high risk of psychosis or risk of bipolar disorder were included. With 71 dropouts, transition was assessed during 12months among 101 participants of whom 13 converted to schizophrenia. At baseline, the cognitive appraisal of stigma as a stressor was measured by self-report, based on the primary appraisal of stigma as harmful and the secondary appraisal of resources to cope with stigma. Positive and negative symptoms were examined using the Positive and Negative Syndrome Scale. Compared with participants who did not convert to schizophrenia, converters had significantly more positive (p<.001) and negative (p<.001) symptoms and reported higher levels of stigma-related harm (p=.003) and stress (p=.009) at baseline. More perceived harm due to stigma at baseline predicted transition to schizophrenia (odds ratio 2.34, 95%-CI 1.19-4.60) after adjusting for age, gender, symptoms and functioning. Stigma stress may increase the risk of transition to schizophrenia. Research is needed on interventions that reduce public negative attitudes towards young people at risk and that support individuals at risk to cope with stigma-related stress.
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