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Coradduzza D, di Lorenzo B, Sedda S, Nivoli AM, Carru C, Mangoni AA, Zinellu A. Investigating bilirubin concentrations in schizophrenia: A systematic review and meta-analysis. Schizophr Res 2024; 271:228-236. [PMID: 39059246 DOI: 10.1016/j.schres.2024.07.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 07/16/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024]
Abstract
Schizophrenia, a severe mental disorder characterized by chronic disability and poor quality of life, has been shown to be associated with alterations in redox balance. Recent research has suggested a potential link between the antioxidant bilirubin and schizophrenia, although findings have been inconsistent. To address this gap, we conducted a systematic review and meta-analysis to evaluate possible alterations in bilirubin concentrations in schizophrenia. A comprehensive search of major databases was conducted to identify articles reporting total and unconjugated bilirubin in schizophrenic patients and healthy controls in case-control studies. Our meta-analysis included 18 studies investigating 16,245 participants. The pooled results did not reveal any significant association between schizophrenia and total bilirubin concentrations. Additionally, such effect was strongly influenced by the results of a single study in sensitivity analysis. Subgroup and meta-regression analyses based on various factors such as study design, sample size, and geographical region showed no significant associations with the effect size, nor they identified sources of heterogeneity. Furthermore, publication bias assessments were conducted to ensure the robustness of the findings. Overall, our findings summarize the available evidence regarding the possible role of bilirubin as a biomarker of schizophrenia and highlight the importance of conducting further research in this area.
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Affiliation(s)
| | - Biagio di Lorenzo
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Stefania Sedda
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Alessandra Matilde Nivoli
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Sassari, Italy; Unit of Urology, University Hospital of Sassari, Italy
| | - Ciriaco Carru
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; UO Oncologia AOU Sassari, Sassari, Italy
| | - Arduino A Mangoni
- Department of Clinical Pharmacology, Southern Adelaide Local Health Network, Australia; Discipline of Clinical Pharmacology, Flinders University, Adelaide, Australia
| | - Angelo Zinellu
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
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2
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Kouakou MR, Cabrera-Mendoza B, Pathak GA, Cannon TD, Polimanti R. Genetically Informed Study Highlights Income-Independent Effect of Schizophrenia Liability on Mental and Physical Health. Schizophr Bull 2024:sbae093. [PMID: 38848523 DOI: 10.1093/schbul/sbae093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
BACKGROUND AND HYPOTHESIS Individuals with schizophrenia (SCZ) suffer from comorbidities that substantially reduce their life expectancy. Socioeconomic inequalities could contribute to many of the negative health outcomes associated with SCZ. STUDY DESIGN We investigated genome-wide datasets related to SCZ (52 017 cases and 75 889 controls) from the Psychiatric Genomics Consortium, household income (HI; N = 361 687) from UK Biobank, and 2202 medical endpoints assessed in up to 342 499 FinnGen participants. A phenome-wide genetic correlation analysis of SCZ and HI was performed, also assessing whether SCZ genetic correlations were influenced by the HI effect on SCZ. Additionally, SCZ and HI direct effects on medical endpoints were estimated using multivariable Mendelian randomization (MR). STUDY RESULTS SCZ and HI showed overlapping genetic correlations with 70 traits (P < 2.89 × 10-5), including mental health, substance use, gastrointestinal illnesses, reproductive outcomes, liver diseases, respiratory problems, and musculoskeletal phenotypes. SCZ genetic correlations with these traits were not affected by the HI effect on SCZ. Considering Bonferroni multiple testing correction (P < 7.14 × 10-4), MR analysis indicated that SCZ and HI may affect medical abortion (SCZ OR = 1.07; HI OR = 0.78), panic disorder (SCZ OR = 1.20; HI OR = 0.60), personality disorders (SCZ OR = 1.31; HI OR = 0.67), substance use (SCZ OR = 1.2; HI OR = 0.68), and adjustment disorders (SCZ OR = 1.18; HI OR = 0.78). Multivariable MR analysis confirmed that SCZ effects on these outcomes were independent of HI. CONCLUSIONS The effect of SCZ genetic liability on mental and physical health may not be strongly affected by socioeconomic differences. This suggests that SCZ-specific strategies are needed to reduce negative health outcomes affecting patients and high-risk individuals.
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Affiliation(s)
- Manuela R Kouakou
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
| | - Brenda Cabrera-Mendoza
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Cooperative Studies Program Clinical Epidemiology Research Center (CSP-CERC), VA Connecticut Healthcare System, West Haven, CT, USA
| | - Gita A Pathak
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Cooperative Studies Program Clinical Epidemiology Research Center (CSP-CERC), VA Connecticut Healthcare System, West Haven, CT, USA
| | - Tyrone D Cannon
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Department of Psychology, Yale University, New Haven, CT, USA
- Wu Tsai Institute, Yale University, New Haven, CT, USA
| | - Renato Polimanti
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Cooperative Studies Program Clinical Epidemiology Research Center (CSP-CERC), VA Connecticut Healthcare System, West Haven, CT, USA
- Wu Tsai Institute, Yale University, New Haven, CT, USA
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3
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Xu Q, Li H, Zhu D. Socioeconomic status, personality, and major mental disorders: a bidirectional Mendelian randomization study. SCHIZOPHRENIA (HEIDELBERG, GERMANY) 2024; 10:49. [PMID: 38678036 PMCID: PMC11055884 DOI: 10.1038/s41537-024-00471-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 04/11/2024] [Indexed: 04/29/2024]
Abstract
Previous research has suggested a correlation between socioeconomic status (SES) and mental diseases, while personality traits may be associated with SES and the risk of mental disorders. However, the causal nature of these associations remains largely uncertain. Our Mendelian randomization (MR) study aims to explore the bidirectional causality between SES and mental disorders, as well as to evaluate the potential mediating role of personality in these associations. Using bidirectional MR approach, we assessed the causality between SES indicators and mental disorders. We then used a two-step MR method to further investigate whether and to what extent personality mediates the causal associations in Caucasians. The forward MR analyses identified that years of education, household income, age at first birth and the Townsend deprivation index had a causal association with at least one mental disorder. The reverse MR analyses identified causal effects of genetically predicted schizophrenia, bipolar disorder, and attention deficit/hyperactivity disorder on five SES indicators. Importantly, mediation analysis showed that neuroticism partly mediated the causality of household income and years of education on major depressive disorder, respectively. In brief, our study confirmed the bidirectional relationship between SES and mental disorders. We also revealed the role of neuroticism in mediating the association between SES and major depressive disorder, highlighting the importance of considering both socioeconomic and personality factors in mental health research and interventions.
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Affiliation(s)
- Qiang Xu
- Department of Radiology, Tianjin Key Lab of Functional Imaging & Tianjin Institute of Radiology, Tianjin Medical University General Hospital, Tianjin, China.
| | - Haonan Li
- Department of Radiology, Tianjin Key Lab of Functional Imaging & Tianjin Institute of Radiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Dan Zhu
- Department of Radiology, Tianjin Medical University General Hospital Airport Hospital, Tianjin, China.
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Singh D, Nasir S, Sharma J, Giménez-Llort L, Shahnawaz MG. Psychological Distress in Low-Income and Economically Marginalized Populations in India: Protective and Risk Factors. Behav Sci (Basel) 2024; 14:92. [PMID: 38392445 PMCID: PMC10886196 DOI: 10.3390/bs14020092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/24/2024] Open
Abstract
Studies at the juncture of development economics and public health take on considerable responsibility in addressing inequality and related mental health distress. Mental healthcare in economically marginalized populations requires depicting the linkages between socioeconomic status and psychological distress. In the present work, a sequential mixed-methods design was used to study 190 people in such communities in India. Gender-dependent psychological distress was found according to the Kessler Psychological Distress Scale (K-10) with moderate distress in women (M = 26.30, SD = 9.15) and mild distress in men (M = 21.04, SD = 8.35). Regression analysis indicated that gender significantly predicted psychological distress, followed by age, marital status, and the level of education of the head of the family. The Interpretative Phenomenological Analysis of semi-structured interviews of the six women who scored the highest on the distress scale unveiled three master themes: (1) manifestation of psychological distress, (2) contextual challenges, and (3) sources of strength and resilience. Overall, participants reported a lack of resources, community violence, gender discrimination, and widespread substance use as major contributors to the ongoing distress. These findings can pave the way for future studies to expand beyond independent economic indicators and curate clinical interventions for culturally competent mental healthcare.
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Affiliation(s)
- Dipti Singh
- Department of Psychology, Jamia Millia Islamia, New Delhi 110025, India
| | - Shagufta Nasir
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Juhi Sharma
- Light Up-Emotions Matter Foundation, New Delhi 110096, India
| | - Lydia Giménez-Llort
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
- Institut de Neurociències, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
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Vita A, Nibbio G, Barlati S. Pharmacological Treatment of Cognitive Impairment Associated With Schizophrenia: State of the Art and Future Perspectives. SCHIZOPHRENIA BULLETIN OPEN 2024; 5:sgae013. [PMID: 39144119 PMCID: PMC11207676 DOI: 10.1093/schizbullopen/sgae013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Cognitive Impairment Associated with Schizophrenia (CIAS) represents one of the core dimensions of Schizophrenia Spectrum Disorders (SSD), with an important negative impact on real-world functional outcomes of people living with SSD. Treatment of CIAS represents a therapeutic goal of considerable importance, and while cognition-oriented evidence-based psychosocial interventions are available, effective pharmacological treatment could represent a game-changer in the lives of people with SSD. The present critical review reports and discusses the evidence regarding the effects of several pharmacological agents that are available in clinical practice or are under study, commenting on both current and future perspectives of CIAS treatment. In particular, the effects on CIAS of antipsychotic medications, anticholinergic medications, benzodiazepines, which are currently commonly used in the treatment of SSD, and of iclepertin, d-serine, luvadaxistat, xanomeline-trospium, ulotaront, anti-inflammatory molecules, and oxytocin, which are undergoing regulatory trials or can be considered as experimental agents, will be reported and discussed. Currently, available pharmacological agents do not appear to provide substantial benefits on CIAS, but accurate management of antipsychotic medications and avoiding treatments that can further exacerbate CIAS represent important strategies. Some molecules that are currently being investigated in Phase 2 and Phase 3 trials have provided very promising preliminary results, but more information is currently required to assess their effectiveness in real-world contexts and to provide clear recommendations regarding their use in clinical practice. The results of ongoing and future studies will reveal whether any of these molecules represents the awaited pharmacological game-changer in the treatment of CIAS.
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Affiliation(s)
- Antonio Vita
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
- Department of Mental Health and Addiction Services, ASST Spedali Civili of Brescia, Brescia, Italy
| | - Gabriele Nibbio
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Stefano Barlati
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
- Department of Mental Health and Addiction Services, ASST Spedali Civili of Brescia, Brescia, Italy
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Wei Z, Wang Y, Hu L, Wang Y, Li C, Sun L. Incidence, prevalence, and mortality of schizophrenia from 2016 to 2020 in Shandong, China. Psychiatry Res 2024; 331:115612. [PMID: 38039652 DOI: 10.1016/j.psychres.2023.115612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/03/2023]
Abstract
The epidemiology of schizophrenia has been reported in many countries. However, due to the limitations of those studies, the findings cannot be generalized to other parts of the world, especially in China. In this study, the incidence, prevalence, and mortality of schizophrenia in Shandong, China were calculated using data from the National Severe Mental Disorder Registration System collected between 2016 and 2020 and census data from 2010 to 2020. The overall incidence decreased from 9.61 per 100,000 in 2016 to 4.40 per 100,000 in 2020, the aggregate prevalence was approximately 3.20 per 1000, and the overall mortality ranged from 6.17 per 100,000 to 7.71 per 100,000. The evidence from this study indicated that the incidence, prevalence, and mortality of schizophrenia were higher in rural areas than in urban areas. Females had higher incidence, prevalence, and mortality than males. This study provided epidemiological information on schizophrenia and opened avenues for future research.
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Affiliation(s)
- Zhen Wei
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; National Health Commission of China (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan 250012, China; Institute of Health and Elderly Care, Shandong University, Jinan 250012, China
| | - Yanhu Wang
- Department of Social Mental Health, Shandong Mental Health Center, Jinan 250014, China
| | - Lili Hu
- Department of Social Mental Health, Shandong Mental Health Center, Jinan 250014, China
| | - Yifan Wang
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; National Health Commission of China (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan 250012, China; Institute of Health and Elderly Care, Shandong University, Jinan 250012, China
| | - Caifeng Li
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; National Health Commission of China (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan 250012, China; Institute of Health and Elderly Care, Shandong University, Jinan 250012, China
| | - Long Sun
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; National Health Commission of China (NHC) Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan 250012, China; Institute of Health and Elderly Care, Shandong University, Jinan 250012, China.
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7
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Baruth JM, Bateman DR, Kovacs RJ, Bateman PV, Pazdernik VM, Santivasi WL, Dunlay SM, Lapid MI. Cardiac healthcare disparities and electrocardiography (ECG) differences in schizophrenia at end of life. Schizophr Res 2023; 262:60-66. [PMID: 37925752 DOI: 10.1016/j.schres.2023.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 09/11/2023] [Accepted: 10/22/2023] [Indexed: 11/07/2023]
Abstract
Schizophrenia is associated with early mortality of 15 to 20 years, and 80 % of deaths are due to cardiovascular disease with a three-times greater risk of sudden-cardiac-death. While lifestyle, medications, genetics, and healthcare disparities are contributing factors, the etiology of this complex process is not fully understood. The aim of this study is to examine cardiac-related healthcare utilization and electrocardiogram (ECG) outcomes in schizophrenia at the end of life (EOL). A cohort of individuals with schizophrenia (SG) (n = 610, ≥50 years) were identified retrospectively from a unified clinical data platform and measures of cardiovascular healthcare utilization were evaluated within a 12-month period prior to death. Similarly, a control group (n = 610) was randomly identified and matched by gender (53 % females) and age of death (72.8 ± 12.4 years). Statistical methods included Cochran-Mantel-Haenszel and mixed-effects logistic & linear regression tests with adjustments for match strata and marital status, race, age, and gender as covariates. Results indicate that SG was more likely to be unmarried, unemployed, or from minority groups (all p < 0.001), and more likely to have diabetes and/or cardiovascular disease (p < 0.001). SG was less likely to receive an ECG (p = 0.001) or cardiac catheterization procedure (p < 0.001). SG had a greater mean QTc (447.2 ms vs. 434.6 ms; p = 0.001) and were twice as likely to have "prolonged QT" on ECG report (p = 0.006). In conclusion, SG had reduced likelihood of cardiac-related healthcare interventions, and despite greater likelihood of prolonged QTc, a recognized biomarker of cardiac risk, ECG was less likely at EOL. Given greater cardiac comorbidity and risk of sudden cardiac death in schizophrenia, improved practice guidelines are needed.
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Affiliation(s)
- Joshua M Baruth
- Dept. of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA.
| | - Daniel R Bateman
- Dept. of Behavioral Health, Indiana University, Indianapolis, IN, USA
| | | | | | | | - Wil L Santivasi
- Center for Palliative Care, Department of Medicine, Duke University, Durham, NC, USA
| | - Shannon M Dunlay
- Dept. of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Maria I Lapid
- Dept. of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
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Andreu-Bernabeu Á, González-Peñas J, Arango C, Díaz-Caneja CM. Socioeconomic status and severe mental disorders: a bidirectional multivariable Mendelian randomisation study. BMJ MENTAL HEALTH 2023; 26:e300821. [PMID: 38007229 PMCID: PMC10680010 DOI: 10.1136/bmjment-2023-300821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/18/2023] [Indexed: 11/27/2023]
Abstract
BACKGROUND Despite the evidence supporting the relationship between socioeconomic status (SES) and severe mental disorders (SMD), the directionality of the associations between income or education and mental disorders is still poorly understood. OBJECTIVE To investigate the potential bidirectional causal relationships between genetic liability to the two main components of SES (income and educational attainment (EA)) on three SMD: schizophrenia, bipolar disorder (BD) and depression. METHODS We performed a bidirectional, two-sample univariable Mendelian randomisation (UVMR) and multivariable Mendelian randomisation (MVMR) study using SES phenotypes (income, n=397 751 and EA, n=766 345) and SMD (schizophrenia, n=127 906; BD, n=51 710 and depression, n=500 119) genome-wide association studies summary-statistics to dissect the potential direct associations of income and EA with SMD. FINDINGS UVMR showed that genetic liability to higher income was associated with decreased risk of schizophrenia and depression, with a smaller reverse effect of schizophrenia and depression on income. Effects were comparable after adjusting for EA in the MVMR. UMVR showed bidirectional negative associations between genetic liability to EA and depression and positive associations between genetic liability to EA and BD, with no significant effects on schizophrenia. After accounting for income, MVMR showed a bidirectional positive direction between genetic liability to EA and BD and schizophrenia but not with depression. CONCLUSIONS Our results suggest a heterogeneous link pattern between SES and SMD. We found a negative bidirectional association between genetic liability to income and the risk of schizophrenia and depression. On the contrary, we found a positive bidirectional relationship of genetic liability to EA with schizophrenia and BD, which only becomes apparent after adjusting for income in the case of schizophrenia. CLINICAL IMPLICATIONS These findings shed light on the directional mechanisms between social determinants and mental disorders and suggest that income and EA should be studied separately in relation to mental illness.
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Affiliation(s)
- Álvaro Andreu-Bernabeu
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERSAM, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Javier González-Peñas
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERSAM, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Celso Arango
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERSAM, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Universidad Complutense de Madrid, Madrid, Spain
| | - Covadonga M Díaz-Caneja
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERSAM, Hospital General Universitario Gregorio Marañón, Madrid, Spain
- Universidad Complutense de Madrid, Madrid, Spain
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Kouakou MR, Cabrera-Mendoza B, Pathak GA, Cannon TD, Polimanti R. Household income does not affect the pleiotropy of schizophrenia genetic liability with mental and physical health outcomes. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.09.25.23296085. [PMID: 37808821 PMCID: PMC10557836 DOI: 10.1101/2023.09.25.23296085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Background and Hypothesis Individuals with schizophrenia (SCZ) suffer from comorbidities that substantially reduce their life expectancy. Socioeconomic inequalities could contribute to many of the negative health outcomes associated with SCZ. Study Design We investigated genome-wide datasets related to SCZ (52,017 cases and 75,889 controls) from the Psychiatric Genomics Consortium, household income (HI; N=361,687) from UK Biobank, and 2,202 medical endpoints assessed in up to 342,499 FinnGen participants. A phenome-wide genetic correlation analysis of SCZ and HI was performed, also assessing whether SCZ genetic correlations were influenced by HI effect on SCZ. Additionally, SCZ and HI direct effects on medical endpoints were estimated using multivariable Mendelian randomization (MR). Study Results SCZ and HI showed overlapping genetic correlations with 70 traits (p<2.89×10 -5 ), including mental health, substance use, gastrointestinal illnesses, reproductive outcomes, liver diseases, respiratory problems, and musculoskeletal phenotypes. SCZ genetic correlations with these traits were not affected by HI effect on SCZ. Considering Bonferroni multiple testing correction (p<7.14×10 -4 ), MR analysis indicated that SCZ and HI may affect medical abortion (SCZ odds ratio, OR=1.07; HI OR=0.78), panic disorder (SCZ OR=1.20; HI OR=0.60), personality disorders (SCZ OR=1.31; HI OR=0.67), substance use (SCZ OR=1.2; HI OR=0.68), and adjustment disorders (SCZ OR=1.18; HI OR=0.78). Multivariable MR analysis confirmed that SCZ effects on these outcomes were independent of HI. Conclusions The effect of SCZ genetic liability on mental and physical health may not be strongly affected by socioeconomic differences. This suggests that SCZ-specific strategies are needed to reduce negative health outcomes affecting patients and high-risk individuals.
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10
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Xu Q, Cai M, Ji Y, Ma J, Liu J, Zhao Q, Chen Y, Zhao Y, Zhang Y, Wang H, Guo L, Xue K, Wang Z, Liu M, Wang C, Zhu D, Liu F. Identifying the mediating role of socioeconomic status on the relationship between schizophrenia and major depressive disorder: a Mendelian randomisation analysis. SCHIZOPHRENIA (HEIDELBERG, GERMANY) 2023; 9:53. [PMID: 37644044 PMCID: PMC10465573 DOI: 10.1038/s41537-023-00389-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023]
Abstract
Depressive disorder prevalence in patients with schizophrenia has been reported to be 40%. People with low socioeconomic status (SES) are more likely to suffer from schizophrenia and major depressive disorder (MDD). However, the causal relationship between schizophrenia and depression and the potential mediating role of SES remains unclear. Two-sample Mendelian randomization (MR) analyses were conducted to explore the bidirectional causal relationship between schizophrenia and MDD with the largest sample size of European ancestry from public genome-wide association studies (sample size ranged from 130,644 to 480,359). Inverse variance weighted (IVW) method was used as the primary analysis, and several canonical MR methods were used as validation analyses. The mediating role of SES (educational years, household income, employment status, and Townsend deprivation index) was estimated by the two-step MR method. MR analyses showed that genetically predicted schizophrenia was associated with an increased risk of MDD (IVW odds ratio [OR] = 1.137 [95% CI 1.095, 1.181]). Reversely, MDD was also associated with an increased risk of schizophrenia (IVW OR = 1.323 [95% CI 1.118, 1.565]). The mediation analysis via the two-step MR method revealed that the causal effect of schizophrenia on MDD was partly mediated by the Townsend deprivation index with a proportion of 10.27%, but no significant mediation effect was found of SES on the causal effect of MDD on schizophrenia. These results suggest a robust bidirectional causal effect between schizophrenia and MDD. Patients with schizophrenia could benefit from the early and effective intervention of the Townsend deprivation index.
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Affiliation(s)
- Qiang Xu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Mengjing Cai
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Yuan Ji
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Juanwei Ma
- Department of Radiology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Jiawei Liu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Qiyu Zhao
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Yayuan Chen
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Yao Zhao
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Yijing Zhang
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - He Wang
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Lining Guo
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Kaizhong Xue
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Zirui Wang
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Mengge Liu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Chunyang Wang
- Department of Scientific Research, Tianjin Medical University General Hospital, Tianjin, China.
| | - Dan Zhu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China.
- Department of Radiology, Tianjin Medical University General Hospital Airport Hospital, Tianjin, China.
| | - Feng Liu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China.
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Kangarloo T, Mote J, Abplanalp S, Gold A, James P, Gard D, Fulford D. The Influence of Greenspace Exposure on Affect in People With and Those Without Schizophrenia: Exploratory Study. JMIR Form Res 2023; 7:e44323. [PMID: 37535418 PMCID: PMC10436123 DOI: 10.2196/44323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 05/12/2023] [Accepted: 06/05/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Exposure to natural vegetation (ie, "greenspace") is related to beneficial outcomes, including higher positive and lower negative affect, in individuals with and those without mental health concerns. Researchers have yet to examine dynamic associations between greenspace exposure and affect within individuals over time. Smartphone-based ecological momentary assessment (EMA) and passive sensors (eg, GPS, microphone) allow for frequent sampling of data that may reveal potential moment-to-moment mechanisms through which greenspace exposure impacts mental health. OBJECTIVE In this study, we examined associations between greenspace exposure and affect (both self-reported and inferred through speech) in people with and those without schizophrenia spectrum disorder (SSD) at the daily level using smartphones. METHODS Twenty people with SSD and 14 healthy controls reported on their current affect 3 times per day over 7 days using smartphone-based EMA. Affect expressed through speech was labeled from ambient audio data collected via the phone's microphone using Linguistic Inquiry and Word Count (LIWC). Greenspace exposure, defined as the normalized difference vegetation index (NDVI), was quantified based on continuous geo-location data collected from the phone's GPS. RESULTS Overall, people with SSD used significantly more positive affect words (P=.04) and fewer anger words (P=.04) than controls. Groups did not significantly differ in mean EMA-reported positive or negative affect, LIWC total word count, or NDVI exposure. Greater greenspace exposure showed small to moderate associations with lower EMA-reported negative affect across groups. In controls, greenspace exposure on a given day was associated with significantly lower EMA-reported anxiety on that day (b=-0.40, P=.03, 95% CI -0.76 to -0.04) but significantly higher use of negative affect words (b=0.66, P<.001, 95% CI 0.29-1.04). There were no significant associations between greenspace exposure and affect at the daily level among participants with SSD. CONCLUSIONS Our findings speak to the utility of passive and active smartphone assessments for identifying potential mechanisms through which greenspace exposure influences mental health. We identified preliminary evidence that greenspace exposure could be associated with improved mental health by reducing experiences of negative affect. Future directions will focus on furthering our understanding of the relationship between greenspace exposure and affect on individuals with and those without SSD.
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Affiliation(s)
- Tairmae Kangarloo
- Sargent College of Health and Rehabilitation Sciences, Boston University, Boston, MA, United States
| | - Jasmine Mote
- Sargent College of Health and Rehabilitation Sciences, Boston University, Boston, MA, United States
| | - Samuel Abplanalp
- Desert Pacific Mental Illness Research, Education and Clinical Center, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, United States
| | - Alisa Gold
- Sargent College of Health and Rehabilitation Sciences, Boston University, Boston, MA, United States
| | - Peter James
- Harvard Medical School and Harvard Pilgram Health Care Institute, Boston, MA, United States
- Harvard TH Chan School of Public Health, Boston, MA, United States
| | - David Gard
- Department of Psychology, San Francisco State University, San Francisco, CA, United States
| | - Daniel Fulford
- Sargent College of Health and Rehabilitation Sciences, Boston University, Boston, MA, United States
- Department of Psychological and Brain Sciences, Boston University, Boston, MA, United States
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12
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Loch AA, Lopes-Rocha AC, Fekih-Romdhane F, van de Bilt MT, Salazar de Pablo G, Fusar-Poli P. Inequality and barriers in psychosis prevention: A systematic review on clinical high-risk for psychosis studies from developing countries. Front Psychiatry 2023; 14:1148862. [PMID: 37113551 PMCID: PMC10126325 DOI: 10.3389/fpsyt.2023.1148862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
Background The clinical high-risk for psychosis (CHR) paradigm is one of the best studied preventive paradigms in psychiatry. However, most studies have been conducted in high-income countries. It is unclear if knowledge from such countries applies to low and middle-income countries (LAMIC), and if there are specific limitations hindering CHR research there. Our aim is to systematically review studies on CHR from LAMIC. Methods A multistep PRISMA-compliant literature search was performed in PubMed and Web of Science for articles published until 1/03/2022, conducted in LAMIC, addressing the concept and correlates of CHR. Study characteristics as well as limitations were reported. Corresponding authors of the included studies were invited to answer an online poll. Quality assessment was done with the MMAT. Results A total of 109 studies were included in the review: none from low-income countries, 8 from lower middle-income countries, and 101 from upper middle-income countries. The most frequent limitations were small sample size (47.9%), cross-sectional design (27.1%), and follow-up issues (20.8%). Mean quality of included studies was of 4.4. Out of the 43 corresponding authors, 12 (27.9%) completed the online poll. They cited further limitations as few financial resources (66.7%), no involvement of population (58.2%) and cultural barriers (41.7%). Seventy five percent researchers reported that CHR research should be conducted differently in LAMIC compared to high-income countries, due to structural and cultural issues. Stigma was mentioned in three out of five sections of the poll. Discussion Results show the discrepancy of available evidence on CHR in LAMIC, given the shortage of resources in such countries. Future directions should aim to increase the knowledge on individuals at CHR in such settings, and to address stigma and cultural factors that may play a role in the pathways toward care in psychosis. Systematic Review Registration https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=316816, CRD42022316816.
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Affiliation(s)
- Alexandre Andrade Loch
- Laboratorio de Neurociencias (LIM 27), Faculdade de Medicina, Instituto de Psiquiatria, Hospital das Clinicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
- Conselho Nacional de Desenvolvimento Cientifico e Tecnológico, Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), São Paulo, Brazil
| | - Ana Caroline Lopes-Rocha
- Laboratorio de Neurociencias (LIM 27), Faculdade de Medicina, Instituto de Psiquiatria, Hospital das Clinicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
| | - Feten Fekih-Romdhane
- Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
- Department of Psychiatry Ibn Omrane, The Tunisian Center of Early Intervention in Psychosis, Razi Hospital, Tunis, Tunisia
| | - Martinus Theodorus van de Bilt
- Laboratorio de Neurociencias (LIM 27), Faculdade de Medicina, Instituto de Psiquiatria, Hospital das Clinicas HCFMUSP, Universidade de São Paulo, São Paulo, Brazil
- Conselho Nacional de Desenvolvimento Cientifico e Tecnológico, Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION), São Paulo, Brazil
| | - Gonzalo Salazar de Pablo
- Early Psychosis - Interventions and Clinical-Detection (EPIC) Lab, Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- Child and Adolescent Mental Health Services, South London and Maudsley NHS Foundation Trust, London, United Kingdom
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón School of Medicine, IiSGM, CIBERSAM, Universidad Complutense, Madrid, Spain
| | - Paolo Fusar-Poli
- Early Psychosis - Interventions and Clinical-Detection (EPIC) Lab, Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
- Outreach and Support in South London (OASIS) Service, South London and Maudsley NHS Foundation Trust, London, United Kingdom
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13
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Matsunaga M, Li Y, He Y, Kishi T, Tanihara S, Iwata N, Tabuchi T, Ota A. Physical, Psychiatric, and Social Comorbidities of Individuals with Schizophrenia Living in the Community in Japan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4336. [PMID: 36901345 PMCID: PMC10001945 DOI: 10.3390/ijerph20054336] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The physical, psychiatric, and social comorbidities interfere with the everyday activities of community-dwelling individuals with schizophrenia and increase the risk of their readmission. However, these comorbidities have not been investigated comprehensively in Japan. We conducted a self-reported internet survey in February 2022 to identify individuals aged 20-75 years with and without schizophrenia using a prevalence case-control study. The survey compared physical comorbidities such as being overweight, hypertension, and diabetes; psychiatric comorbidities such as depressive symptoms and sleep disturbances; social comorbidities such as employment status, household income, and social support between participants with and without schizophrenia. A total of 223 participants with schizophrenia and 1776 participants without schizophrenia were identified. Participants with schizophrenia were more likely to be overweight and had a higher prevalence of hypertension, diabetes, and dyslipidemia than participants without schizophrenia. Additionally, depressive symptoms, unemployment, and non-regular employment were more prevalent in participants with schizophrenia than those without schizophrenia. These results highlight the necessity of comprehensive support and interventions addressing physical, psychiatric, and social comorbidities in individuals with schizophrenia in the community. In conclusion, effective interventions for managing comorbidities in individuals with schizophrenia are necessary to enable them to continue to live in the community.
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Affiliation(s)
- Masaaki Matsunaga
- Department of Public Health, Fujita Health University School of Medicine, Toyoake 470-1192, Japan
| | - Yuanying Li
- Department of Public Health and Health Systems, Graduate School of Medicine, Nagoya University, Nagoya 466-8550, Japan
| | - Yupeng He
- Department of Public Health, Fujita Health University School of Medicine, Toyoake 470-1192, Japan
| | - Taro Kishi
- Department of Psychiatry, School of Medicine, Fujita Health University, Toyoake 470-1192, Japan
| | - Shinichi Tanihara
- Department of Public Health, School of Medicine, Kurume University, Kurume 830-0011, Japan
| | - Nakao Iwata
- Department of Psychiatry, School of Medicine, Fujita Health University, Toyoake 470-1192, Japan
| | - Takahiro Tabuchi
- Cancer Control Center, Osaka International Cancer Institute, Osaka 541-8567, Japan
| | - Atsuhiko Ota
- Department of Public Health, Fujita Health University School of Medicine, Toyoake 470-1192, Japan
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14
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Kearns JC, Kittel JA, Schlagbaum P, Pigeon WR, Glenn CR. Worry-related sleep problems and suicidal thoughts and behaviors among adolescents in 88 low-, middle-, and high-income countries: an examination of individual- and country-level factors. Eur Child Adolesc Psychiatry 2022; 31:1995-2011. [PMID: 34213638 DOI: 10.1007/s00787-021-01838-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 06/25/2021] [Indexed: 01/26/2023]
Abstract
A strong association between sleep problems and suicidal thoughts and behaviors (STBs) has been demonstrated in high-income countries. The sleep-STB relationship, however, is minimally understood among youth in low and middle-incomes countries. There also is a limited understanding of how individual- (i.e., age, sex) and country-level (i.e., economic inequality, economic quality) factors may moderate the magnitude of the sleep-STB association among youth. Data were analyzed from the cross-national Global School-based Health Survey 2003-2017, which assessed a range of health behaviors among school-enrolled adolescents aged 11-18 years from 88 low-, lower-middle, upper-middle, and high-income countries. Multilevel models were used to examine the influence of individual- and country-level factors on the association between past-year worry-related sleep problems and past-year suicide ideation, suicide plans, and suicide attempts. Worry-related sleep problems were significantly associated with suicide ideation, plans, and attempts. Adolescent sex, country economic quality (income group designation), and country economic inequality moderated the sleep-STB association, but age did not. The sleep-STB relationship was stronger for males and across macroeconomic indices, the relationship was generally strongest among upper-middle income countries (economic quality) and countries with a big income gap (economic inequality). When examining how individual-level factors differentially affected the sleep-STB relationship within economic quality (income group designation), the effects were driven by older adolescents in high-income countries for suicide ideation and suicide plans. Study findings suggest an important role for global macroeconomic factors, for males, and older adolescents in high-income countries in the sleep-STB relationship. Future directions include expanding worldwide coverage of countries, assessing a wider range of sleep problems, and longitudinal work to understand potential mechanisms in the sleep-STB relationship.
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Affiliation(s)
- Jaclyn C Kearns
- Department of Psychology, University of Rochester, 180 Meliora Hall, Box 270266, Rochester, NY, 14627, USA.
| | - Julie A Kittel
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Paige Schlagbaum
- Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, USA
| | - Wilfred R Pigeon
- VA Center for Excellence for Suicide Prevention, Finger Lakes Healthcare System, Canandaigua, NY, USA.,Sleep and Neurophysiology Research Lab, University of Rochester Medical Center Rochester, Rochester, NY, USA
| | - Catherine R Glenn
- Department of Psychology, Old Dominion University, Norfolk, VA, USA.,Virginia Consortium Program in Clinical Psychology, Norfolk, VA, USA
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15
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Machlitt‐Northen S, Keers R, Munroe PB, Howard DM, Trubetskoy V, Pluess M. Polygenic scores for schizophrenia and major depression are associated with psychosocial risk factors in children: evidence of gene-environment correlation. J Child Psychol Psychiatry 2022; 63:1140-1152. [PMID: 35781881 PMCID: PMC9796489 DOI: 10.1111/jcpp.13657] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/20/2022] [Indexed: 01/02/2023]
Abstract
BACKGROUND Whilst genetic and environmental risk factors for schizophrenia (SCZ) and major depressive disorder (MDD) have been established, it is unclear whether exposure to environmental risk factors is genetically confounded by passive, evocative or active gene-environment correlation (rGE). STUDY OBJECTIVE This study aims to investigate: (a) whether the genetic risk for SCZ/MDD in children is correlated with established environmental and psychosocial risk factors in two British community samples, the 1958 National Child Development Study (NCDS) and the Millennium Cohort Study (MCS), (b) whether these associations vary between both psychopathologies, and (c) whether findings differ across the two cohorts which were born 42 years apart. METHODS Polygenic risk scores (PRS) from existing large genome-wide associations studies (GWAS) were applied to test the correlation between the child genetic risk for SCZ/MDD and known environmental risk factors. In addition, parental and child genetic data from MCS were used to distinguish between passive and evocative rGE. RESULTS The child polygenic risk for SCZ and MDD was correlated with single parenthood in MCS. Moreover, the lack of father's involvement in child care was associated with the genetic risk for SCZ in NCDS. However, we also found associations between several indicators of low socioeconomic status and heightened genetic risk for MDD in children in both cohorts. Further, the genetic risk for MDD was associated with parental lack of interest in the child's education in NCDS as well as more maternal smoking and less maternal alcohol consumption during childhood in MCS. According to sensitivity analyses in MCS (controlling for parental genotype), more than half of our significant correlations reflected passive rGE. CONCLUSIONS Findings suggest that several established environmental and psychosocial risk factors for SCZ and MDD are at least partially associated with children's genetic risk for these psychiatric disorders.
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Affiliation(s)
| | - Robert Keers
- Department of Biological and Experimental PsychologyQueen Mary University of LondonLondonUK
| | - Patricia B. Munroe
- Department of Clinical Pharmacology, William Harvey Research InstituteQueen Mary University of LondonLondonUK
| | - David M. Howard
- Social, Genetic and Developmental Psychiatry CentreKing's College LondonLondonUK
- Division of PsychiatryUniversity of Edinburgh, Royal Edinburgh HospitalEdinburghUK
| | - Vassily Trubetskoy
- Department of Psychiatry and PsychotherapyUniversitätsmedizin Berlin Campus Charité MitteBerlinGermany
| | - Michael Pluess
- Department of Biological and Experimental PsychologyQueen Mary University of LondonLondonUK
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16
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Marbin D, Gutwinski S, Schreiter S, Heinz A. Perspectives in poverty and mental health. Front Public Health 2022; 10:975482. [PMID: 35991010 PMCID: PMC9386343 DOI: 10.3389/fpubh.2022.975482] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 07/07/2022] [Indexed: 11/22/2022] Open
Abstract
In recent years, different forms of poverty and their interaction with mental illness have been in the focus of research, although the implementation of action in mental health care and policy making so far is scarce. This perspective article offers different perspectives of poverty and its reciprocal association with mental illness and outlines possible future research and policy implications. We will approach the topic of poverty from various levels: On a micro-level, focusing on absolute poverty with precarious housing and malnutrition. On a meso-level, on neighborhood-related poverty as a factor in individuals' mental illness. On a macro-level, on effects of income inequality on mental health. In several studies, it has been shown that on each level, poverty has a profound impact on mental health, though it must be noted that in some fields, research is still scarce. In the future, an inter- and transdisciplinary approach is of considerable importance, since poverty and its impact on mental health should be addressed from different perspectives, reaching from targeted programs for individual groups (e.g., homeless people) up to national policy measures.
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Affiliation(s)
- Derin Marbin
- Department of Psychiatry and Neurosciences, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Department of Psychiatry of University Hospital Charité in St. Hedwig Hospital Berlin, Germany
- *Correspondence: Derin Marbin
| | - Stefan Gutwinski
- Department of Psychiatry and Neurosciences, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Department of Psychiatry of University Hospital Charité in St. Hedwig Hospital Berlin, Germany
| | - Stefanie Schreiter
- Department of Psychiatry and Neurosciences, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Andreas Heinz
- Department of Psychiatry and Neurosciences, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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17
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Cai J, Wei Z, Chen M, He L, Wang H, Li M, Peng Y. Socioeconomic status, individual behaviors and risk for mental disorders: A Mendelian randomization study. Eur Psychiatry 2022; 65:e28. [PMID: 35431011 PMCID: PMC9158396 DOI: 10.1192/j.eurpsy.2022.18] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/11/2022] [Accepted: 03/25/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND There is increasing attention on the association of socioeconomic status and individual behaviors (SES/IB) with mental health. However, the impacts of SES/IB on mental disorders are still unclear. To provide evidence for establishing feasible strategies on disease screening and prevention, we implemented Mendelian randomization (MR) design to appraise causality between SES/IB and mental disorders. METHODS We conducted a two-sample MR study to assess the causal effects of SES and IB (dietary habits, habitual physical activity, smoking behaviors, drinking behaviors, sleeping behaviors, leisure sedentary behaviors, risky behaviors, and reproductive behaviors) on three mental disorders, including bipolar disorder, major depressive disorder and schizophrenia. A series of filtering steps were taken to select eligible genetic instruments robustly associated with each of the traits. Inverse variance weighted was used for primary analysis, with alternative MR methods including MR-Egger, weighted median, and weighted mode estimate. Complementary methods were further used to detect pleiotropic bias. RESULTS After Bonferroni correction and rigorous quality control, we identified that SES (educational attainment), smoking behaviors (smoking initiation, number of cigarettes per day), risky behaviors (adventurousness, number of sexual partners, automobile speeding propensity) and reproductive behavior (age at first birth) were causally associated with at least one of the mental disorders. CONCLUSIONS MR study provides robust evidence that SES/IB play broad impacts on mental disorders.
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Affiliation(s)
- Jiahao Cai
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zixin Wei
- Department of Pulmonary and Critical Care Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ming Chen
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lei He
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hongxuan Wang
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mei Li
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ying Peng
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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18
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González-Valderrama A, Jongsma HE, Mena C, Castañeda CP, Nachar R, Undurraga J, Crossley N, Aceituno D, Iruretagoyena B, Gallardo C, Mondaca P, Monje M, Irarrazaval M, Zavala C, Valmaggia L, Kirkbride JB. The incidence of non-affective psychotic disorders in Chile between 2005 and 2018: results from a national register of over 30 000 cases. Psychol Med 2022; 52:914-923. [PMID: 32758314 PMCID: PMC9005445 DOI: 10.1017/s0033291720002664] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/22/2020] [Accepted: 07/07/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Evidence suggests the incidence of non-affective psychotic disorders (NAPDs) varies across persons and places, but data from the Global South is scarce. We aimed to estimate the treated incidence of NAPD in Chile, and variance by person, place and time. METHODS We used national register data from Chile including all people, 10-65 years, with the first episode of NAPD (International Classification of Diseases, Tenth Revision: F20-F29) between 1 January 2005 and 29 August 2018. Denominators were estimated from Chilean National Census data. Our main outcome was treated incidence of NAPD and age group, sex, calendar year and regional-level population density, multidimensional poverty and latitude were exposures of interest. RESULTS We identified 32 358 NAPD cases [12 136 (39.5%) women; median age-at-first-contact: 24 years (interquartile range 18-39 years)] during 171.1 million person-years [crude incidence: 18.9 per 100 000 person-years; 95% confidence interval (CI) 18.7-19.1]. Multilevel Poisson regression identified a strong age-sex interaction in incidence, with rates peaking in men (57.6 per 100 000 person-years; 95% CI 56.0-59.2) and women (29.5 per 100 000 person-years; 95% CI 28.4-30.7) between 15 and 19 years old. Rates also decreased (non-linearly) over time for women, but not men. We observed a non-linear association with multidimensional poverty and latitude, with the highest rates in the poorest regions and those immediately south of Santiago; no association with regional population density was observed. CONCLUSION Our findings inform the aetiology of NAPDs, replicating typical associations with age, sex and multidimensional poverty in a Global South context. The absence of association with population density suggests this risk may be context-dependent.
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Affiliation(s)
- Alfonso González-Valderrama
- Early Intervention Program, Instituto Psiquiátrico Dr J Horwitz Barak, Santiago, Chile
- School of Medicine, Universidad Finis Terrae, Santiago, Chile
| | - Hannah E. Jongsma
- Psylife Group, Division of Psychiatry, University College London, London, UK
| | - Cristián Mena
- Early Intervention Program, Instituto Psiquiátrico Dr J Horwitz Barak, Santiago, Chile
| | - Carmen Paz Castañeda
- Early Intervention Program, Instituto Psiquiátrico Dr J Horwitz Barak, Santiago, Chile
| | - Rubén Nachar
- Early Intervention Program, Instituto Psiquiátrico Dr J Horwitz Barak, Santiago, Chile
- School of Medicine, Universidad Finis Terrae, Santiago, Chile
| | - Juan Undurraga
- Early Intervention Program, Instituto Psiquiátrico Dr J Horwitz Barak, Santiago, Chile
- Department of Neurology and Psychiatry, Faculty of Medicine, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Nicolás Crossley
- Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago Metropolitan Region, Chile
- Biomedical Imaging Center, Pontificia Universidad Católica de Chile, Santiago Metropolitan Region, Chile
- Department of Psychosis Studies, King's College London, Institute of Psychology, Psychiatry, and Neuroscience, London, UK
| | - David Aceituno
- Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago Metropolitan Region, Chile
- Department of Health Service and Population Research, King's College London, Institute of Psychology, Psychiatry, and Neuroscience, London, UK
| | - Barbara Iruretagoyena
- Early Intervention Program, Instituto Psiquiátrico Dr J Horwitz Barak, Santiago, Chile
- Department of Psychiatry, School of Medicine, Pontificia Universidad Católica de Chile, Santiago Metropolitan Region, Chile
| | - Carlos Gallardo
- Early Intervention Program, Instituto Psiquiátrico Dr J Horwitz Barak, Santiago, Chile
| | - Pilar Mondaca
- Early Intervention Program, Instituto Psiquiátrico Dr J Horwitz Barak, Santiago, Chile
| | - Matías Monje
- Early Intervention Program, Instituto Psiquiátrico Dr J Horwitz Barak, Santiago, Chile
| | - Matías Irarrazaval
- Department of Mental Health, Ministry of Health, Santiago, Chile
- Millennium Institute for Research in Depression and Personality, Santiago, Chile
- Faculty of Medicine, Clínica Psiquiátrica Universitaria, University of Chile, Santiago, Chile
| | - Cynthia Zavala
- Department of Mental Health, Ministry of Health, Santiago, Chile
| | - Lucia Valmaggia
- Department of Psychology, King's College London, Institute of Psychology, Psychiatry, and Neuroscience, London, UK
| | - James B. Kirkbride
- Psylife Group, Division of Psychiatry, University College London, London, UK
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Saxena A, Dodell-Feder D. Explaining the Association Between Urbanicity and Psychotic-Like Experiences in Pre-Adolescence: The Indirect Effect of Urban Exposures. Front Psychiatry 2022; 13:831089. [PMID: 35360125 PMCID: PMC8962621 DOI: 10.3389/fpsyt.2022.831089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/27/2022] [Indexed: 11/30/2022] Open
Abstract
Urban living is a growing worldwide phenomenon with more than two-thirds of people expected to live in cities by 2050. Although there are many benefits to living in an urban environment, urbanicity has also been associated with deleterious health outcomes, including increased risk for psychotic outcomes particularly when the urban exposure occurs in pre-adolescence. However, the mechanisms underlying this association is unclear. Here, we utilize one-year follow-up data from a large (N=7,979), nationwide study of pre-adolescence in the United States to clarify why urbanicity (i.e., census-tract population density) might impact psychotic-like experiences (PLE) by looking at the indirect effect of eight candidate urbanicity-related physical (e.g., pollution) and social (e.g., poverty) exposures. Consistent with other work, we found that of the evaluated exposures related to urbanicity, several were also related to increased number of PLE: PM2.5, proximity to roads, census-level homes at-risk for exposure to lead paint, census-level poverty, and census-level income-disparity. These same urban-related exposures were also related to the persistence of PLE after 1 year, but not new onset of PLE. Mediation analysis revealed that a substantial proportion the urbanicity-PLE association (number and persistence) could be explained by PM2.5 (23-44%), families in poverty (68-93%), and income disparity (67-80%). Together, these findings suggest that specific urban-related exposures contribute to the existence and maintenance, but not onset of PLE, which might help to explain why those in urban environments are disproportionately at-risk for psychosis and point toward areas for public health intervention.
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Affiliation(s)
- Abhishek Saxena
- Department of Psychology, University of Rochester, Rochester, NY, United States
| | - David Dodell-Feder
- Department of Psychology, University of Rochester, Rochester, NY, United States
- Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, United States
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DeLuca JS, Novacek DM, Adery LH, Herrera SN, Landa Y, Corcoran CM, Walker EF. Equity in Mental Health Services for Youth at Clinical High Risk for Psychosis: Considering Marginalized Identities and Stressors. EVIDENCE-BASED PRACTICE IN CHILD AND ADOLESCENT MENTAL HEALTH 2022; 7:176-197. [PMID: 35815004 PMCID: PMC9258423 DOI: 10.1080/23794925.2022.2042874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Prevention and early intervention programs have been initiated worldwide to serve youth at Clinical High Risk for Psychosis (CHR-P), who are adolescents and young adults experiencing subclinical psychosis and functional impairment. The primary goals of these efforts are to prevent or mitigate the onset of clinical psychosis, while also treating comorbid issues. It is important to consider issues of diversity, equity, and inclusion in CHR-P work, especially as these programs continue to proliferate around the world. Further, there is a long history in psychiatry of misdiagnosing and mistreating psychosis in individuals from racial and ethnic minority groups. Although there have been significant developments in early intervention psychosis work, there is evidence that marginalized groups are underserved by current CHR-P screening and intervention efforts. These issues are compounded by the contexts of continued social marginalization and significant mental health disparities in general child/adolescent services. Within this narrative review and call to action, we use an intersectional and minority stress lens to review and discuss current issues related to equity in CHR-P services, offer evidence-based recommendations, and propose next steps. In particular, our intersectional and minority stress lenses incorporate perspectives for a range of marginalized and underserved identities related to race, ethnicity, and culture; faith; immigration status; geography/residence; gender identity; sexual orientation; socioeconomic status/class; and ability status.
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Affiliation(s)
- Joseph S. DeLuca
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, , New York, NY, USA
| | - Derek M. Novacek
- Desert Pacific Mental Illness Research, Education, and Clinical Center, Veterans Affairs Greater Los Angeles Healthcare System, , Los Angeles, CA, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
| | - Laura H. Adery
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
| | - Shaynna N. Herrera
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, , New York, NY, USA
| | - Yulia Landa
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, , New York, NY, USA
- New York Mental Illness Research, Education and Clinical Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA
| | - Cheryl M. Corcoran
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, , New York, NY, USA
- New York Mental Illness Research, Education and Clinical Center, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA
| | - Elaine F. Walker
- Department of Psychology, Emory University, Atlanta, GA, USA
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
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21
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Mortality from coronavirus disease 2019 (Covid-19) in patients with schizophrenia: A systematic review, meta-analysis and meta-regression. Gen Hosp Psychiatry 2022; 75:61-67. [PMID: 35182908 PMCID: PMC8813760 DOI: 10.1016/j.genhosppsych.2022.01.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/30/2022] [Accepted: 01/31/2022] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Schizophrenia has been associated with patients' poor quality of life, disability, and hospitalization. As of today, evidence that highlights the association between schizophrenia and coronavirus disease (Covid-19) outcomes remains unclear. This study sought to analyze whether patients with pre-existing schizophrenia are at higher risk for Covid-19 mortality. METHODS Using specific keywords, we comprehensively searched PubMed, Scopus, OVID, and Cochrane Library sources until November 15th, 2021. All published studies on schizophrenia and Covid-19 were collected. We used Review Manager 5.4 and Comprehensive Meta-Analysis 3 software to conduct statistical analysis. RESULTS There were 10 studies with 263,207 Covid-19 patients included in the analysis. Evaluation of the data gathered yielded an association between schizophrenia and increased mortality from Covid-19 (RR 2.22; 95%CI: 1.54-3.20, p < 0.00001, I2 = 82% random-effect model). The increased risk of developing mortality from Covid-19 in patients with schizophrenia was significantly influenced by older age (p = 0.0004) and smoking (p = 0.0048). CONCLUSIONS This study proposes that patients with pre-existing schizophrenia are at risk of developing higher Covid-19 mortality. Patients with schizophrenia need special attention and should be prioritized to receive the SARS-CoV-2 vaccine. REGISTRATION DETAILS CRD42021293997.
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22
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Tibber MS, Walji F, Kirkbride JB, Huddy V. The association between income inequality and adult mental health at the subnational level-a systematic review. Soc Psychiatry Psychiatr Epidemiol 2022; 57:1-24. [PMID: 34386869 PMCID: PMC8761134 DOI: 10.1007/s00127-021-02159-w] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 07/30/2021] [Indexed: 02/08/2023]
Abstract
PURPOSE A systematic review was undertaken to determine whether research supports: (i) an association between income inequality and adult mental health when measured at the subnational level, and if so, (ii) in a way that supports the Income Inequality Hypothesis (i.e. between higher inequality and poorer mental health) or the Mixed Neighbourhood Hypothesis (higher inequality and better mental health). METHODS Systematic searches of PsycINFO, Medline and Web of Science databases were undertaken from database inception to September 2020. Included studies appeared in English-language, peer-reviewed journals and incorporated measure/s of objective income inequality and adult mental illness. Papers were excluded if they focused on highly specialised population samples. Study quality was assessed using a custom-developed tool and data synthesised using the vote-count method. RESULTS Forty-two studies met criteria for inclusion representing nearly eight million participants and more than 110,000 geographical units. Of these, 54.76% supported the Income Inequality Hypothesis and 11.9% supported the Mixed Neighbourhood Hypothesis. This held for highest quality studies and after controlling for absolute deprivation. The results were consistent across mental health conditions, size of geographical units, and held for low/middle and high income countries. CONCLUSIONS A number of limitations in the literature were identified, including a lack of appropriate (multi-level) analyses and modelling of relevant confounders (deprivation) in many studies. Nonetheless, the findings suggest that area-level income inequality is associated with poorer mental health, and provides support for the introduction of social, economic and public health policies that ameliorate the deleterious effects of income inequality. CLINICAL REGISTRATION NUMBER PROSPERO 2020 CRD42020181507.
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Affiliation(s)
- Marc S Tibber
- Department of Clinical, Educational and Health Psychology, UCL, London, UK.
| | - Fahreen Walji
- Department of Clinical, Educational and Health Psychology, UCL, London, UK
| | | | - Vyv Huddy
- Clinical and Applied Psychology Unit, Department of Psychology, University of Sheffield, Sheffield, UK
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23
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Peritogiannis V, Samakouri M. Research on psychotic disorders in rural areas: Recent advances and ongoing challenges. Int J Soc Psychiatry 2021; 67:1046-1057. [PMID: 34024174 DOI: 10.1177/00207640211019456] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Research on patients with chronic psychotic disorders in rural areas is scarce. Those patients may not receive adequate mental health care. Mental health disparities among rural and urban areas have been recognized. AIMS This review aims to present the most recent research on psychotic disorders in rural areas. METHOD We conducted a search in the PubMed and Scopus databases. The search involved articles published over the last decade (2011-2020). All types of research design were included, if studies had used a controlled group of urban patients and reported on the differences among rural/urban residents with psychotic disorders. The focus of the review was on outcome and treatment. RESULTS A total of 12 studies were included in this review. Most have been conducted in China or India. Reports from Western countries are rare. Outcome studies showed that employment rates are significantly higher in rural patients, as well as rates of marriage in women. It is not clear what is the impact of those outcomes on patients' lives. The finding of lower cost of psychotic disorders in some rural areas, should be viewed with scepticism. Studies on treatment aspects suggested that rural patients were less likely to receive antipsychotics, antipsychotic combination or clozapine. Those results were attributed to limited access to specialized treatment. When rural patients receive specialized community care they seem to have better outcomes than urban patients. CONCLUSION There is an ongoing, but still scarce research on patients with chronic psychotic disorders in rural areas. Researchers pointed out the impact of socioeconomic inequalities on outcome and treatment, and stressed the importance of minimizing mental health disparities. These findings may have potential implications for future research; for the introduction of accessible, locally based mental health services in rural areas; and for political initiatives that would address poverty and social inequalities.
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Affiliation(s)
- Vaios Peritogiannis
- Mobile Mental Health Unit of the Prefectures of Ioannina and Thesprotia, Society for the Promotion of Mental Health in Epirus, Ioannina, Greece
| | - Maria Samakouri
- Medical School, Democritus University of Thrace, Alexandroupolis, Greece.,Department of Psychiatry, University General Hospital of Alexandroupolis, Alexandroupolis, Greece
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24
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Izquierdo A, Cabello M, Leal I, Ayora M, Rodriguez-Jimenez R, Ibáñez Á, Díaz-Marsá M, Bravo-Ortiz MF, Baca-García E, Madrigal JLM, Fares-Otero NE, Díaz-Caneja CM, Arango C, Ayuso Mateos JL. How does neighbourhood socio-economic status affect the interrelationships between functioning dimensions in first episode of psychosis? A network analysis approach. Health Place 2021; 69:102555. [PMID: 33744489 DOI: 10.1016/j.healthplace.2021.102555] [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] [Received: 11/24/2020] [Revised: 03/01/2021] [Accepted: 03/01/2021] [Indexed: 10/21/2022]
Abstract
The links between psychosis and socio-economic disadvantage have been widely studied. No previous study has analysed the interrelationships and mutual influences between functioning dimensions in first episode of psychosis (FEP) according to their neighbourhood household income, using a multidimensional and transdiagnostic perspective. 170 patients and 129 controls, participants in an observational study (AGES-CM), comprised the study sample. The WHO Disability Assessment Schedule (WHODAS 2.0) was used to assess functioning, whereas participants' postcodes were used to obtain the average household income for each neighbourhood, collected by the Spanish National Statistics Institute (INE). Network analyses were conducted with the aim of defining the interrelationships between the different dimensions of functioning according to the neighbourhood household income. Our results show that lower neighbourhood socioeconomic level is associated with lower functioning in patients with FEP. Moreover, our findings suggest that "household responsibilities" plays a central role in the disability of patients who live in low-income neighbourhoods, whereas "dealing with strangers" is the most important node in the network of patients who live in high-income neighbourhoods. These results could help to personalize treatments, by allowing the identification of potential functioning areas to be prioritized in the treatment of FEP according to the patient's neighbourhood characteristics.
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Affiliation(s)
- Ana Izquierdo
- Department of Psychiatry, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Del Hospital Universitario de La Princesa, IIS Princesa, CIBERSAM, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - María Cabello
- Department of Psychiatry, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Del Hospital Universitario de La Princesa, IIS Princesa, CIBERSAM, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - Itziar Leal
- Department of Psychiatry, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Del Hospital Universitario de La Princesa, IIS Princesa, CIBERSAM, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - Miriam Ayora
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Roberto Rodriguez-Jimenez
- Department of Psychiatry, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), CIBERSAM, CogPsy Group, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Ángela Ibáñez
- Department of Psychiatry, Hospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, CIBERSAM, School of Medicine, Universidad de Alcalá, Madrid, Spain
| | - Marina Díaz-Marsá
- Institute of Psychiatry and Mental Health, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria Del Hospital Clínico San Carlos (IdISSC), CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - María-Fé Bravo-Ortiz
- Department of Psychiatry, Clinical Psychology and Mental Health, Hospital Universitario de La Paz, Hospital La Paz Institute for Health Research (IdiPAZ), School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - Enrique Baca-García
- Department of Psychiatry, Hospital Universitario Fundación Jiménez Diaz, Hospital Universitario Rey Juan Carlos, Hospital General de Villalba, Hospital Universitario Infanta Elena, CIBERSAM, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain; Universidad Católica Del Maule, Talca, Chile
| | - José L M Madrigal
- Department of Pharmacology and Toxicology (FarmaMED), School of Medicine, Universidad Complutense de Madrid, CIBERSAM, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), IUIN-UCM, Madrid, Spain
| | - Natalia E Fares-Otero
- Department of Psychiatry, Hospital Universitario 12 de Octubre, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), CIBERSAM, CogPsy Group, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Covadonga M Díaz-Caneja
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Celso Arango
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Jose Luis Ayuso Mateos
- Department of Psychiatry, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Del Hospital Universitario de La Princesa, IIS Princesa, CIBERSAM, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.
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Moreno-Küstner B, Guzman-Parra J, Pardo Y, Sanchidrián Y, Díaz-Ruiz S, Mayoral-Cleries F. Excess mortality in patients with schizophrenia spectrum disorders in Malaga (Spain): A cohort study. Epidemiol Psychiatr Sci 2021; 30:e11. [PMID: 33536113 PMCID: PMC8057505 DOI: 10.1017/s2045796020001146] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 12/01/2020] [Accepted: 12/08/2020] [Indexed: 11/07/2022] Open
Abstract
AIMS There is evidence that patients with schizophrenia spectrum disorders present higher mortality in comparison with the general population. The aim of this study was to analyse the causes of mortality and sociodemographic factors associated with mortality, standardised mortality ratios (SMRs), life expectancy and potential years of life lost (YLL) in patients with schizophrenia spectrum disorders in Spain. METHODS The study included a cohort of patients from the Malaga Schizophrenia Case Register (1418 patients; 907 males; average age 42.31 years) who were followed up for a minimum of 10 years (median = 13.43). The factors associated with mortality were analysed with a survival analysis using Cox's proportional hazards regression model. RESULTS The main causes of mortality in the cohort were circulatory disease (21.45%), cancer (17.09%) and suicide (13.09%). The SMR of the cohort was more than threefold that of the population of Malaga (3.19). The life expectancy at birth was 67.11 years old, which is more than 13 years shorter than that of the population of Malaga. The YLL was 20.74. The variables associated with a higher risk of mortality were age [adjusted hazard ratio (AHR) = 1.069, p < 0.001], male gender (AHR = 1.751, p < 0.001) and type of area of residence (p = 0.028; deprived urban zone v. non-deprived urban area, AHR = 1.460, p = 0.028). In addition, receiving welfare benefit status in comparison with employed status (AHR = 1.940, p = 0.008) was associated with increased mortality. CONCLUSIONS There is excess mortality in patients with schizophrenia spectrum disorders and also an association with age, gender, socioeconomic inequalities and receiving welfare benefits. Efforts directed towards improved living conditions could have a positive effect on reducing mortality.
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Affiliation(s)
- Berta Moreno-Küstner
- Departamento de Personalidad, Evaluación y Tratamiento Psicológico, Grupo GAP, Facultad de Psicología, Universidad de Málaga, Spain
| | - Jose Guzman-Parra
- Department of Mental Health, University General Hospital of Malaga. Biomedical Research Institute of Malaga (IBIMA), Spain
| | - Yolanda Pardo
- Department of Mental Health, University General Hospital of Malaga. Biomedical Research Institute of Malaga (IBIMA), Spain
| | - Yolanda Sanchidrián
- Departamento de Personalidad, Evaluación y Tratamiento Psicológico, Grupo GAP, Facultad de Psicología, Universidad de Málaga, Spain
| | | | - Fermin Mayoral-Cleries
- Department of Mental Health, University General Hospital of Malaga. Biomedical Research Institute of Malaga (IBIMA), Spain
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26
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Nagendra A, Orleans-Pobee M, Spahnn R, Monette M, Sosoo EE, Pinkham AE, Penn DL. How often do US-based schizophrenia papers published in high-impact psychiatric journals report on race and ethnicity?: A 20-year update of Lewine and Caudle (1999). J Ment Health 2020; 31:649-656. [PMID: 33166190 DOI: 10.1080/09638237.2020.1837356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Racial and ethnic disparities have been clearly documented in schizophrenia studies, but it is unclear how much research attention they receive among US-based studies published in high-impact journals. AIMS The current paper updates Lewine and Caudle's (1999) and Chakraborty and Steinhauer's (2010) works, which quantified how frequently schizophrenia studies included information on race and ethnicity in their analyses. METHOD We examined all US-based papers on schizophrenia-spectrum, first-episode psychosis, and clinical high-risk groups, published between 2014 to 2016 in four major psychiatric journals: American Journal of Psychiatry, Journal of the American Medical Association - Psychiatry, Schizophrenia Bulletin, and Schizophrenia Research. RESULTS Of 474 US-based studies, 62% (n = 295) reported analyses by race or ethnicity as compared to 20% in Lewine and Caudle's (1999) study. The majority of papers (59%) reported sample descriptions, a 42% increase from Lewine and Caudle's (1999) study. Additionally, 47% matched or compared the racial/ethnic composition of primary study groups and 12% adjusted for race (e.g., as a covariate). However, only 9% directly analyzed racial and/or ethnic identity in relation to the primary topic of the paper. CONCLUSIONS While schizophrenia studies report analyses by race and ethnicity more frequently than 20 years ago, there remains a strong need for systematic, nuanced research on this topic. The authors offer recommendations for how to conceptualize and report upon race and ethnicity in schizophrenia research.
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Affiliation(s)
- Arundati Nagendra
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Center of Excellence for Psychosocial and Systemic Research / Disparities Research Unit, Massachusetts General Hospital, Boston, MA, USA
| | - Maku Orleans-Pobee
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Rachel Spahnn
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Mahogany Monette
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Effua E Sosoo
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Amy E Pinkham
- School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX, USA.,Department of Psychiatry, University of Texas Southwestern Medical School, Dallas, TX, USA
| | - David L Penn
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, VIC, Australia
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27
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Association between paternal age and risk of schizophrenia: a nationwide population-based study. J Assist Reprod Genet 2020; 38:85-93. [PMID: 32862335 DOI: 10.1007/s10815-020-01936-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 08/26/2020] [Indexed: 12/13/2022] Open
Abstract
PURPOSE To study the association between paternal age and schizophrenia in offspring. METHODS This report describes a nationwide population-based cohort study from 1997 to 2013. Data from Taiwan's National Health Insurance Research Database were utilized to answer the research question. A total of 17,649 offspring with schizophrenia were selected from 11 million offspring in the general population. Additionally, we established the offspring without schizophrenia as the comparison group by matching the study cohort by age, gender in a 1:4 ratio (n = 70,596). RESULTS The median age at first presentation with schizophrenia was 20 years (interquartile range (IQR), 17 to 24). Comparison of the schizophrenia and non-schizophrenia groups indicated that father's age at birth (30.0 (IQR), 27 to 33 vs. 29.0 (IQR), 26 to 32 years), mother's age at birth (26.0 (IQR), 24 to 29 vs. 26.0 (IQR), 23 to 29 years), paternal schizophrenia (2.6% vs. 0.6%), and maternal schizophrenia (4.4% vs. 0.7%) were all significantly greater in the schizophrenia group. In addition, each 5-year increase in father's age increased the odds of being diagnosed with schizophrenia (model 1: aOR = 1.22; 95% CI 1.20, 1.24; model 2: aOR = 1.20; 95% CI 1.18, 1.23). Subgroup analysis showed that each 5-year increase in father's age increased the odds of being diagnosed with schizophrenia in male and female offspring, as well as in offspring of mothers and fathers with or without schizophrenia (aOR = 1.20 to 2.20, all p values < 0.01). CONCLUSION This study indicated that advanced paternal age increased the risk of schizophrenia in offspring. Offspring born to fathers older by 5-year increments were at heightened risk of schizophrenia.
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Adverse childhood experiences and psychotic-like experiences are associated above and beyond shared correlates: Findings from the adolescent brain cognitive development study. Schizophr Res 2020; 222:235-242. [PMID: 32522466 PMCID: PMC7572890 DOI: 10.1016/j.schres.2020.05.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/17/2020] [Accepted: 05/18/2020] [Indexed: 12/17/2022]
Abstract
Adverse childhood experiences (ACEs) are associated with increased risk for psychotic-like experiences (PLEs). However, ACEs and PLEs are also both associated with several shared factors (e.g., internalizing symptoms, suicidality). Few studies have explicitly examined whether the association between ACEs and PLEs remains over and above shared correlates. To address this question, using 10,800 9-11-year-olds, we examined whether ACEs and school-aged PLEs were associated when accounting for shared correlates, and whether there was evidence of mediation in associations between PLEs, ACEs, and these shared factors. Greater number of ACEs were associated with greater PLEs, including several specific ACEs (e.g., bullying). Importantly, ACEs and PLEs were related even when accounting for shared correlates. Further, PLEs partially mediated the relationships between ACEs and both internalizing symptoms and suicidality, including suicidal behavior. The current study helps clarify the nature of the associations between PLEs and ACE and has important clinical implications for addressing PLEs.
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29
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Lee SC, DelPozo-Banos M, Lloyd K, Jones I, Walters JTR, Owen MJ, O'Donovan M, John A. Area deprivation, urbanicity, severe mental illness and social drift - A population-based linkage study using routinely collected primary and secondary care data. Schizophr Res 2020; 220:130-140. [PMID: 32249120 DOI: 10.1016/j.schres.2020.03.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 01/20/2020] [Accepted: 03/21/2020] [Indexed: 10/24/2022]
Abstract
We investigated whether associations between area deprivation, urbanicity and elevated risk of severe mental illnesses (SMIs, including schizophrenia and bipolar disorder) is accounted for by social drift or social causation. We extracted primary and secondary care electronic health records from 2004 to 2015 from a population of 3.9 million. We identified prevalent and incident individuals with SMIs and their level of deprivation and urbanicity using the Welsh Index of Multiple Deprivation (WIMD) and urban/rural indicator. The presence of social drift was determined by whether odds ratios (ORs) from logistic regression is greater than the incidence rate ratios (IRRs) from Poisson regression. Additionally, we performed longitudinal analysis to measure the proportion of change in deprivation level and rural/urban residence 10 years after an incident diagnosis of SMI and compared it to the general population using standardised rate ratios (SRRs). Prevalence and incidence of SMIs were significantly associated with deprivation and urbanicity (all ORs and IRRs significantly >1). ORs and IRRs were similar across all conditions and cohorts (ranging from 1.1 to 1.4). Results from the longitudinal analysis showed individuals with SMIs are more likely to move compared to the general population. However, they did not preferentially move to more deprived or urban areas. There was little evidence of downward social drift over a 10-year period. These findings have implications for the allocation of resources, service configuration and access to services in deprived communities, as well as, for broader public health interventions addressing poverty, and social and environmental contexts.
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Affiliation(s)
- Sze Chim Lee
- HDRUK, Swansea University Medical School, Singleton Park, Swansea SA2 8PP, UK; National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Marcos DelPozo-Banos
- HDRUK, Swansea University Medical School, Singleton Park, Swansea SA2 8PP, UK; National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Keith Lloyd
- HDRUK, Swansea University Medical School, Singleton Park, Swansea SA2 8PP, UK; National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK
| | - Ian Jones
- National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK; MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cathays, Cardiff CF24 4HQ, UK
| | - James T R Walters
- National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK; MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cathays, Cardiff CF24 4HQ, UK
| | - Michael J Owen
- National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK; MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cathays, Cardiff CF24 4HQ, UK
| | - Michael O'Donovan
- National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK; MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Hadyn Ellis Building, Maindy Road, Cathays, Cardiff CF24 4HQ, UK
| | - Ann John
- HDRUK, Swansea University Medical School, Singleton Park, Swansea SA2 8PP, UK; National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff CF24 4HQ, UK.
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Ding R, Zhang L, He P, Song X, Zheng X. Income, income inequality and schizophrenia in China: a population-based multilevel analysis. J Epidemiol Community Health 2020; 74:719-725. [PMID: 32434862 DOI: 10.1136/jech-2019-213049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 04/14/2020] [Accepted: 04/21/2020] [Indexed: 11/04/2022]
Abstract
BACKGROUND Previous studies have suggested that socio-environmental factors interact with genetic risk in the genesis of schizophrenia. This study aimed to investigate the relationship between income, income inequality and schizophrenia and its heterogeneity among different geographic scales and subgroups. METHODS We used data from the Second China National Sample Survey on Disability (2006). The sample consisted of 1 909 205 participants aged 18 years or older. Individuals who were suspected to be psychiatrically disabled were administered the WHO Disability Assessment Schedule, Version II and the International Statistical Classification of Diseases, Tenth Revision Symptom Checklist for Mental Disorders by trained clinical psychiatrists to diagnose schizophrenia. Gross household income per capita was used to calculate the Gini coefficient to measure income inequality. Multilevel logistic regression with cross-level interaction was applied to examine the association of income, income inequality and schizophrenia. RESULTS A total of 7 628 persons (0.40%) were identified as having schizophrenia. Income was independently associated with schizophrenia. At the province level, greater income inequality was significantly associated with a higher risk of schizophrenia (OR, 1.03; 95% CI 1.00 to 1.06), and no significant association was observed at the county level. The analysis with cross-level interaction showed that the association at the province level was most pronounced in the highest income quartile (OR, 1.02; 95% CI 1.00 to 1.03). CONCLUSION The significant association between income and schizophrenia was consistent with the absolute income hypothesis. The adverse effect of income inequality on the risk of schizophrenia starts to operate at a larger area level, and it is more pronounced for the affluent population in China. This finding further supports the relative income hypothesis and social causation pathway for schizophrenia and calls attention to the vulnerability of high-income groups.
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Affiliation(s)
- Ruoxi Ding
- Institute of Population Research, Peking University, Beijing, China
| | - Lei Zhang
- Institute of Population Research, Peking University, Beijing, China
| | - Ping He
- China Center for Health Development Studies, Peking University, Beijing, China
| | - Xinming Song
- Institute of Population Research, Peking University, Beijing, China
| | - Xiaoying Zheng
- Institute of Population Research, Peking University, Beijing, China
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31
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The Impact of Income Inequality on Carbon Emissions in China: A Household-Level Analysis. SUSTAINABILITY 2020. [DOI: 10.3390/su12072715] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study investigates the impact of income inequality on household carbon emissions in China using nationwide micro panel data. The effect is positive—households in counties with greater income inequality emit more—and remarkably robust to a battery of robustness checks. We also explore the roles that consumption patterns, time preference, and mental health play in the relationship between income inequality and household carbon emissions. The findings suggest that the change in consumption patterns caused by income inequality may be an important reason for the positive effect of inequality on household carbon emissions and that a lower time preference for consumption and improved mental health can mitigate the positive effect of income inequality on household carbon emissions. Furthermore, substantial differences are found among households at different income levels and households with heads of different ages. The findings of this study provide important insights for policy makers to reduce both inequality and emissions.
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Setlaba NNC, Mosotho NL, Joubert G. Demographic, clinical and social characteristics of forensic patients diagnosed with schizophrenia at the Free State Psychiatric Complex, Bloemfontein, South Africa. PSYCHIATRY, PSYCHOLOGY, AND LAW : AN INTERDISCIPLINARY JOURNAL OF THE AUSTRALIAN AND NEW ZEALAND ASSOCIATION OF PSYCHIATRY, PSYCHOLOGY AND LAW 2020; 27:192-201. [PMID: 32944121 PMCID: PMC7476627 DOI: 10.1080/13218719.2019.1618751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Schizophrenia, prevalent in forensic mental health settings, is chronic and devastating, with a generally unfavourable course and prognosis. The aim of this study was to determine the demographic, clinical and social characteristics of forensic patients diagnosed with schizophrenia at the Free State Psychiatric Complex. A data collection form was used to gather information from the clinical records of patients diagnosed with schizophrenia between 1 January 2011 and 31 December 2015. The majority of the 110 participants were young male adults aged between 18 and 35 years with a low educational level. Cognitive impairment and positive symptoms were the most prominent clinical features. Aggressive and violent behaviour was notably prevalent. The majority of our sample had committed crimes against humans, while fewer had committed other types of crimes. It was concluded that causal factors included young adulthood, male gender, substance abuse, a poor social support system and lower educational level.
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Affiliation(s)
| | | | - Gina Joubert
- Department of Biostatistics, University of the Free State, Bloemfontein, South Africa
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Patel V. Income Inequality and Psychiatric Admission in a Rich Country: Happiness Does Not Guarantee Mental Health Equity. JAMA Psychiatry 2020; 77:233-234. [PMID: 31851324 DOI: 10.1001/jamapsychiatry.2019.3638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Vikram Patel
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts.,Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
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Glenn CR, Kleiman EM, Kellerman J, Pollak O, Cha CB, Esposito EC, Porter AC, Wyman PA, Boatman AE. Annual Research Review: A meta-analytic review of worldwide suicide rates in adolescents. J Child Psychol Psychiatry 2020; 61:294-308. [PMID: 31373003 DOI: 10.1111/jcpp.13106] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/02/2019] [Indexed: 12/01/2022]
Abstract
Suicide is a leading cause of death among youth worldwide. The purpose of the current review was to examine recent cross-national trends in suicide mortality rates among 10- to 19-year-olds. This study extracted suicide mortality data from the World Health Organization's (WHO) Mortality Database for the most recent year (since 2010) from any country with available high-quality data (as defined by the WHO's guidelines). Data on access to lethal means (firearms, railways) and measures of economic quality (World Bank Income Group) and inequality (Gini coefficients) were obtained from publicly available data sources. Cross-national suicide mortality rates in youth were heterogeneous. The pooled estimate across all ages, sexes, and countries was 3.77/100,000 people. The highest suicide rates were found in Estonia, New Zealand, and Uzbekistan. Suicide rates were higher among older compared with younger adolescents and higher among males than females. The most common suicide methods were hanging/suffocation and jumping/lying in front of a moving object or jumping from a height. Firearm and railway access were related to suicide deaths by firearms and jumping/lying, respectively. Economic quality and inequality were not related to overall suicide mortality rates. However, economic inequality was correlated with a higher ratio of male:female suicides. This study provides a recent update of cross-national suicide trends in adolescents. Findings replicate prior patterns related to age, sex, geographic region, and common suicide methods. New to this review are findings relating suicide method accessibility to suicide mortality rates and the significant association between income inequality and the ratio of male:female suicide. Future research directions include expanding the worldwide coverage to more low- and middle-income countries, examining demographic groupings beyond binary sex and to race/ethnicity within countries, and clarifying factors that account for cross-national differences in suicide trends.
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Affiliation(s)
- Catherine R Glenn
- Department of Psychology, University of Rochester, Rochester, NY, USA.,Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, USA
| | - Evan M Kleiman
- Department of Psychology, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - John Kellerman
- Department of Psychology, University of Rochester, Rochester, NY, USA
| | - Olivia Pollak
- Department of Psychology, Teachers College, Columbia University, New York, NY, USA
| | - Christine B Cha
- Department of Psychology, Teachers College, Columbia University, New York, NY, USA
| | - Erika C Esposito
- Department of Psychology, University of Rochester, Rochester, NY, USA
| | - Andrew C Porter
- Department of Psychology, University of Rochester, Rochester, NY, USA
| | - Peter A Wyman
- Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, USA
| | - Anne E Boatman
- Department of Psychology, University of Rochester, Rochester, NY, USA
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Chow JC, Chien TW, Lin CH, Chou W. Income inequality and schizophrenia: Increased schizophrenia prevalence in countries with low levels of income inequality. Asian J Psychiatr 2020; 48:101910. [PMID: 31896436 DOI: 10.1016/j.ajp.2019.101910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 12/17/2019] [Accepted: 12/17/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Julie Chi Chow
- Department of Paediatrics, Chi Mei Medical Center, Tainan, Taiwan.
| | - Tsair-Wei Chien
- Research Department, Chi-Mei Medical Center, Tainan, Taiwan.
| | - Chien-Ho Lin
- Department of Psychiatry, Chi-Mei Medical Center, Taiwan.
| | - Willy Chou
- Department of Physical Medicine and Rehabilitation, Chi Mei Medical Center, Tainan, Taiwan; Department of Recreation and Health-Care Management & Institute of Recreation, Industry Management, Chia Nan University of Pharmacy, Tainan, Taiwan.
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36
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Vargas T, Rakhshan Rouhakhtar PJ, Schiffman J, Zou DS, Rydland KJ, Mittal VA. Neighborhood crime, socioeconomic status, and suspiciousness in adolescents and young adults at Clinical High Risk (CHR) for psychosis. Schizophr Res 2020; 215:74-80. [PMID: 31759810 PMCID: PMC7036021 DOI: 10.1016/j.schres.2019.11.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 07/09/2019] [Accepted: 11/13/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Contextual factors representing chronic stressors, such as neighborhood crime characteristics, have been repeatedly linked to compromised mental and physical health, and may contribute to the pathologizing of normative/non-clinical experiences. However, the impact of such structural factors has seldom been incorporated in Clinical High Risk (CHR) for psychosis research. Understanding how context can influence the presence or severity of symptoms such as suspiciousness/paranoia may have important relevance for promoting valid and reliable assessment, as well as for understanding ways in which environment may be related to illness development and expression. METHODS A total of 126 adolescents and young adults (nCHR = 63, ncontrol = 63) underwent clinical interviews for Clinical High-Risk syndromes. Neighborhood crime indices and socioeconomic status were calculated through geocoding and extracting of publicly available Census and Federal Bureau of Investigation (FBI) data. Analyses examined presence of associations between neighborhood crime indices, socioeconomic status, suspiciousness and total symptoms. RESULTS Greater neighborhood crime was related to increased suspiciousness in CHR individuals, even after controlling for neighborhood socioeconomic status, r = 0.27, p = .03. Neighborhood crime was not related to total symptoms, and neither was neighborhood socioeconomic status. DISCUSSION Results suggest neighborhood crime uniquely related to suspiciousness symptoms in CHR individuals, while this was not the case for healthy volunteers (HV). Future work will be critical for determining the extent to which assessors are pathologizing experiences that are normative for a particular context, or rather, if a stressful context is serving as a sufficient environmental stressor to unmask emerging psychosis.
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Affiliation(s)
- Teresa Vargas
- Northwestern University, Department of Psychology, USA.
| | | | | | - Denise S Zou
- Northwestern University, Department of Psychology, USA
| | | | - Vijay A Mittal
- Northwestern University, Department of Psychology, Department of Psychiatry, Department of Medical Social Sciences, Institute for Policy Research, Institute for Innovations in Developmental Sciences, USA
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Chronic stress, structural exposures and neurobiological mechanisms: A stimulation, discrepancy and deprivation model of psychosis. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2019; 152:41-69. [PMID: 32451000 DOI: 10.1016/bs.irn.2019.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chronic stress exposure has been established as a key vulnerability factor for developing psychotic disorders, including schizophrenia. A structural, or systems level perspective, has often been lacking in conceptualizations of chronic stress for psychotic disorders. The current review thus identified three subtypes of structural exposures. Stimulation exposures included urban environments, population density and crime exposure, with intermediary mechanisms of lack of safety and high attentional demands. Underlying neural mechanisms included threat neural circuits. Discrepancy exposures included environmental ethnic density, income inequality, and social fragmentation, with intermediary mechanisms of lack of belonging and social exclusion, and neural mechanisms including the oxytocin system. Deprivation exposures included environments lacking socioeconomic, educational, or material resources, with intermediary mechanisms of lack of needed environmental enrichment, and underlying neural mechanisms of over-pruning and protracted PFC development. Delineating stressor etiology at the systems level is a necessary step in reducing barriers to effective interventions and health policy.
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Abstract
Social inequality refers to the inequitable distribution of social prosperity including the resource of health. The relationship between social inequality and mental health can be established by means of indicators of social inequality throughout all age groups in Germany. There are social gradients of mental health on the population level, i.e. the linear relationship between social classes or status and state of health. Fundamental determinants of health disparity are cultural, social, political, and geographical conditions, which interact with the genetic make-up and epigenetic processes. These determinants also influence the management of developmental tasks during the life course and are of utmost importance for the development of mental disorders. The maladaptation to chronic stress is at the core of health disparity. Interventions at the individual behavioral level should comprise the development of stress management and coping strategies.
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Affiliation(s)
- A Hoell
- Arbeitsgruppe Versorgungsforschung, Klinik für Psychiatrie und Psychotherapie, Zentralinstitut für Seelische Gesundheit, Medizinische Fakultät Mannheim/Universität Heidelberg, 68159, Mannheim, Deutschland.
| | - H J Salize
- Arbeitsgruppe Versorgungsforschung, Klinik für Psychiatrie und Psychotherapie, Zentralinstitut für Seelische Gesundheit, Medizinische Fakultät Mannheim/Universität Heidelberg, 68159, Mannheim, Deutschland
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Tibber MS, Kirkbride JB, Mutsatsa S, Harrison I, Barnes TRE, Joyce EM, Huddy V. Are socioenvironmental factors associated with psychotic symptoms in people with first-episode psychosis? A cross-sectional study of a West London clinical sample. BMJ Open 2019; 9:e030448. [PMID: 31537571 PMCID: PMC6756588 DOI: 10.1136/bmjopen-2019-030448] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 08/06/2019] [Accepted: 08/19/2019] [Indexed: 01/23/2023] Open
Abstract
OBJECTIVES To determine whether neighbourhood-level socioenvironmental factors including deprivation and inequality predict variance in psychotic symptoms after controlling for individual-level demographics. DESIGN A cross-sectional design was employed. SETTING Data were originally collected from secondary care services within the UK boroughs of Ealing, Hammersmith and Fulham, Wandsworth, Kingston, Richmond, Merton, Sutton and Hounslow as part of the West London First-Episode Psychosis study. PARTICIPANTS Complete case analyses were undertaken on 319 participants who met the following inclusion criteria: aged 16 years or over, resident in the study's catchment area, experiencing a first psychotic episode, with fewer than 12 weeks' exposure to antipsychotic medication and sufficient command of English to facilitate assessment. OUTCOME MEASURES Symptom dimension scores, derived from principal component analyses of the Scale for the Assessment of Positive Symptoms and Scale for the Assessment of Negative Symptoms, were regressed on neighbourhood-level predictors, including population density, income deprivation, income inequality, social fragmentation, social cohesion, ethnic density and ethnic fragmentation, using multilevel regression. While age, gender and socioeconomic status were included as individual-level covariates, data on participant ethnicity were not available. RESULTS Higher income inequality was associated with lower negative symptom scores (coefficient=-1.66, 95% CI -2.86 to -0.46, p<0.01) and higher levels of ethnic segregation were associated with lower positive symptom scores (coefficient=-2.32, 95% CI -4.17 to -0.48, p=0.01) after adjustment for covariates. CONCLUSIONS These findings provide further evidence that particular characteristics of the environment may be linked to specific symptom clusters in psychosis. Longitudinal studies are required to begin to tease apart the underlying mechanisms involved as well as the causal direction of such associations.
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Affiliation(s)
- Marc S Tibber
- Department of Clinical, Educational and Health Psychology, University College London, London, UK
| | | | - Stanley Mutsatsa
- School of Health Sciences, City, University of London, London, UK
| | - Isobel Harrison
- Division of Psychiatry, University College London, London, UK
| | | | - Eileen M Joyce
- UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Vyv Huddy
- Clinical Psychology Unit, Department of Psychology, University of Sheffield, Sheffield, UK
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Pearce J, Rafiq S, Simpson J, Varese F. Perceived discrimination and psychosis: a systematic review of the literature. Soc Psychiatry Psychiatr Epidemiol 2019; 54:1023-1044. [PMID: 31236631 DOI: 10.1007/s00127-019-01729-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 05/13/2019] [Indexed: 11/25/2022]
Abstract
PURPOSE Higher rates of psychosis have been reported in minority groups. Since individuals belonging to such groups are vulnerable to the experiences of discrimination, and in line with models proposing that social and life adversity may play a causal role in development and maintenance of psychotic experiences, it has been proposed that perceived discrimination may represent an important determinant of psychotic experiences. This paper reviews the literature examining the relationship between perceived discrimination and psychosis, examining whether discrimination is associated with an increased risk of psychosis, the severity of psychotic symptoms and whether there is an association with specific psychotic symptoms. METHODS A systematic database search of PsycINFO, Embase and PubMed was conducted to identify quantitative cross-sectional and prospective studies that examined the association between discrimination and psychosis. RESULTS Twenty-four studies met the inclusion criteria, four of which used prospective designs and twenty used cross-sectional designs. The main findings indicated that discrimination may be associated with an increased risk of psychosis (too few studies to determine whether discrimination is associated with severity). Some studies found associations between discrimination and positive psychotic experiences and/or specific psychotic experiences such as paranoia. A small number of studies found that greater exposure to discrimination was associated with a greater likelihood of reporting psychotic experiences, tentatively indicating a dose-response relationship. CONCLUSIONS This review indicates that discrimination plays an important role in the experience of psychosis; however, future research is required to clarify the nature of this relationship. Avenues for further research and clinical implications are proposed.
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Affiliation(s)
- Josie Pearce
- Division of Health Research, Faculty of Health and Medicine, Lancaster University, Lancaster, UK
| | - Sonya Rafiq
- Division of Psychology and Mental Health, School of Health Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
| | - Jane Simpson
- Division of Health Research, Faculty of Health and Medicine, Lancaster University, Lancaster, UK
| | - Filippo Varese
- Division of Psychology and Mental Health, School of Health Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK. .,Complex Trauma and Resilience Research Unit, Greater Manchester Mental Health NHS Foundation Trust, Manchester, UK.
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Du H, Chi P, King RB. Economic Inequality is Associated with Long-Term Harm on Adolescent Well-Being in China. Child Dev 2019; 90:1016-1026. [PMID: 31074053 DOI: 10.1111/cdev.13253] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Economic inequality has been found to be detrimental to psychological well-being. However, previous studies were mostly based on cross-sectional data, drew exclusively on adults, and confined to Western developed countries. To address these shortcomings, the current study investigated the longitudinal association of income inequality with adolescent psychological well-being in a non-Western developing economy (i.e., China). We used the China Family Panel Studies data set with a representative sample of 3,042 adolescents (Mage = 12.59) from 20 provinces in China. Analyses showed that adolescents in more unequal provinces had lower happiness and more psychological distress. The associations between economic inequality and well-being varied across adolescents from different socioeconomic strata.
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DeVylder JE, Koyanagi A. Evaluating the Clinical Relevance of Psychotic Experiences in Low- and Middle-Income Countries. Schizophr Bull 2018; 44:1167-1169. [PMID: 30137553 PMCID: PMC6192499 DOI: 10.1093/schbul/sby120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Jordan E DeVylder
- Graduate School of Social Service, Fordham University, New York, NY,To whom correspondence should be addressed; Graduate School of Social Service, Fordham University, 113 West 60th Street, New York, NY 10023, USA; tel: 212-636-6638, fax: 212-636-7623, e-mail:
| | - Ai Koyanagi
- Research and Development Unit, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Fundació Sant Joan de Déu, Barcelona, Spain,Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Madrid, Spain
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43
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Castillejos MC, Martín-Pérez C, Moreno-Küstner B. A systematic review and meta-analysis of the incidence of psychotic disorders: the distribution of rates and the influence of gender, urbanicity, immigration and socio-economic level. Psychol Med 2018; 48:2101-2115. [PMID: 29467052 DOI: 10.1017/s0033291718000235] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Considering existing knowledge on the relationship between certain environmental factors and incidence rates of psychosis, we carried out a systematic review to provide a broad and updated picture of the incidences of different psychotic disorder subgroups worldwide and how some environmental factors influence these rates. METHODS Studies with original data related to the incidence of psychosis (published between 2000 and 2015) were identified via searching electronic databases (CINAHL, MEDLINE, PSYCINFO, PUBMED, and SCOPUS). Data on the following risk factors were extracted: gender, urbanicity, immigration and socio-economic level. Descriptive appraisals of variation in incidence rates (IR) and incidence rate ratios (IRR), with a 95% confidence interval were calculated. In addition, a meta-analysis was performed to calculate IR pooled by diagnosis group and IRR pooled by diagnosis and gender, urbanity, immigration and socio-economic level, using a random effects model. RESULTS We identified 33 reports to analyse. Overall IR per 100 000 persons for non-affective psychoses (IR pooled = 22.53 (16.51-28.54)) were higher than affective psychoses (IR pooled = 7.12 (5.03-9.22)). There was an increase in rates of psychosis in men v. women (IRR pooled = 1.54 (1.37-1.72)), in urban v. rural areas (IRR pooled = 1.64 (1.38-1.95)), in immigrants v. natives (IRR pooled = 3.09 (2.74-3.49)), and in lower socio-economic level areas (IRR pooled = 1.78 (1.43-2.22)). CONCLUSIONS IR among different psychotic disorders was found to vary depending on gender, urbanicity, and immigration (as most of the previous literature focuses on non-affective psychosis or schizophrenia).
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Affiliation(s)
- M C Castillejos
- Departament of Personality, Assessment and Psychological Treatment, University of Málaga, Campus Teatinos, Málaga, Spain
- Andalusian Group of Psychosocial Research (GAP), Research group of the Ministry of Innovation, Science and Business of the Junta de Andalucía, code CTS-945. Andalucía, Spain
| | - C Martín-Pérez
- Andalusian Health Service, North East Granada Sanitary District, Clinical Management Unit at Marquesado, Alquife, Granada, Spain
| | - B Moreno-Küstner
- Departament of Personality, Assessment and Psychological Treatment, University of Málaga, Campus Teatinos, Málaga, Spain
- Andalusian Group of Psychosocial Research (GAP), Research group of the Ministry of Innovation, Science and Business of the Junta de Andalucía, code CTS-945. Andalucía, Spain
- Biomedical Research Institute of Malaga (IBIMA)
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Abstract
Schizophrenia and other types of psychosis incur suffering, high health care costs and loss of human potential, due to the combination of early onset and poor response to treatment. Our ability to prevent or cure psychosis depends on knowledge of causal mechanisms. Molecular genetic studies show that thousands of common and rare variants contribute to the genetic risk for psychosis. Epidemiological studies have identified many environmental factors associated with increased risk of psychosis. However, no single genetic or environmental factor is sufficient to cause psychosis on its own. The risk of developing psychosis increases with the accumulation of many genetic risk variants and exposures to multiple adverse environmental factors. Additionally, the impact of environmental exposures likely depends on genetic factors, through gene-environment interactions. Only a few specific gene-environment combinations that lead to increased risk of psychosis have been identified to date. An example of replicable gene-environment interaction is a common polymorphism in the AKT1 gene that makes its carriers sensitive to developing psychosis with regular cannabis use. A synthesis of results from twin studies, molecular genetics, and epidemiological research outlines the many genetic and environmental factors contributing to psychosis. The interplay between these factors needs to be considered to draw a complete picture of etiology. To reach a more complete explanation of psychosis that can inform preventive strategies, future research should focus on longitudinal assessments of multiple environmental exposures within large, genotyped cohorts beginning early in life.
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Affiliation(s)
- Alyson Zwicker
- Department of Pathology,Dalhousie University,Halifax,NS,Canada
| | | | - Rudolf Uher
- Department of Pathology,Dalhousie University,Halifax,NS,Canada
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45
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Amis JM, Munir KA, Lawrence TB, Hirsch P, McGahan A. Inequality, Institutions and Organizations. ORGANIZATION STUDIES 2018. [DOI: 10.1177/0170840618792596] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The organizations and institutions with which we interact in our everyday lives are heavily implicated in the rising levels of global inequality. We develop understanding of the ways in which a preference in social structures for the free market over other forms of economic organization has made inequality almost inevitable. This has been accompanied by organizational practices such as hiring, promotion and reward allocation, that maintain and enhance societal inequalities. The mutually constitutive relationship between organizations and institutions in the reproduction of inequality are exposed throughout.
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Stephenson J, Nutma E, van der Valk P, Amor S. Inflammation in CNS neurodegenerative diseases. Immunology 2018; 154:204-219. [PMID: 29513402 PMCID: PMC5980185 DOI: 10.1111/imm.12922] [Citation(s) in RCA: 591] [Impact Index Per Article: 98.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 02/22/2018] [Accepted: 02/28/2018] [Indexed: 12/11/2022] Open
Abstract
Neurodegenerative diseases, the leading cause of morbidity and disability, are gaining increased attention as they impose a considerable socioeconomic impact, due in part to the ageing community. Neuronal damage is a pathological hallmark of Alzheimer's and Parkinson's diseases, amyotrophic lateral sclerosis, Huntington's disease, spinocerebellar ataxia and multiple sclerosis, although such damage is also observed following neurotropic viral infections, stroke, genetic white matter diseases and paraneoplastic disorders. Despite the different aetiologies, for example, infections, genetic mutations, trauma and protein aggregations, neuronal damage is frequently associated with chronic activation of an innate immune response in the CNS. The growing awareness that the immune system is inextricably involved in shaping the brain during development as well as mediating damage, but also regeneration and repair, has stimulated therapeutic approaches to modulate the immune system in neurodegenerative diseases. Here, we review the current understanding of how astrocytes and microglia, as well as neurons and oligodendrocytes, shape the neuroimmune response during development, and how aberrant responses that arise due to genetic or environmental triggers may predispose the CNS to neurodegenerative diseases. We discuss the known interactions between the peripheral immune system and the brain, and review the current concepts on how immune cells enter and leave the CNS. A better understanding of neuroimmune interactions during development and disease will be key to further manipulating these responses and the development of effective therapies to improve quality of life, and reduce the impact of neuroinflammatory and degenerative diseases.
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Affiliation(s)
- Jodie Stephenson
- Centre for Neuroscience and TraumaBarts and the Blizard Institute, LondonSchool of Medicine and DentistryQueen Mary University of LondonLondonUK
- Department of PathologyVU University Medical CentreAmsterdamthe Netherlands
| | - Erik Nutma
- Department of PathologyVU University Medical CentreAmsterdamthe Netherlands
| | - Paul van der Valk
- Department of PathologyVU University Medical CentreAmsterdamthe Netherlands
| | - Sandra Amor
- Centre for Neuroscience and TraumaBarts and the Blizard Institute, LondonSchool of Medicine and DentistryQueen Mary University of LondonLondonUK
- Department of PathologyVU University Medical CentreAmsterdamthe Netherlands
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Lund C, Brooke-Sumner C, Baingana F, Baron EC, Breuer E, Chandra P, Haushofer J, Herrman H, Jordans M, Kieling C, Medina-Mora ME, Morgan E, Omigbodun O, Tol W, Patel V, Saxena S. Social determinants of mental disorders and the Sustainable Development Goals: a systematic review of reviews. Lancet Psychiatry 2018; 5:357-369. [PMID: 29580610 DOI: 10.1016/s2215-0366(18)30060-9] [Citation(s) in RCA: 453] [Impact Index Per Article: 75.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 10/12/2017] [Accepted: 10/13/2017] [Indexed: 01/08/2023]
Abstract
Mental health has been included in the UN Sustainable Development Goals. However, uncertainty exists about the extent to which the major social determinants of mental disorders are addressed by these goals. The aim of this study was to develop a conceptual framework for the social determinants of mental disorders that is aligned with the Sustainable Development Goals, to use this framework to systematically review evidence regarding these social determinants, and to identify potential mechanisms and targets for interventions. We did a systematic review of reviews using a conceptual framework comprising demographic, economic, neighbourhood, environmental events, and social and culture domains. We included 289 articles in the final Review. This study sheds new light on how the Sustainable Development Goals are relevant for addressing the social determinants of mental disorders, and how these goals could be optimised to prevent mental disorders.
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Affiliation(s)
- Crick Lund
- Alan J Flisher Centre for Public Mental Health, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa; Centre for Global Mental Health, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
| | - Carrie Brooke-Sumner
- Alan J Flisher Centre for Public Mental Health, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa; Alcohol, Tobacco and Other Drug Research Unit, Medical Research Council of South Africa, Cape Town, South Africa
| | - Florence Baingana
- World Health Organization Sierra Leone Country Office, Freetown, Sierra Leone
| | - Emily Claire Baron
- Alan J Flisher Centre for Public Mental Health, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Erica Breuer
- Alan J Flisher Centre for Public Mental Health, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Prabha Chandra
- Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Johannes Haushofer
- Princeton University, Princeton, NJ, USA; Busara Center for Behavioral Economics, Nairobi, Kenya
| | - Helen Herrman
- Orygen, The National Centre of Excellence in Youth Mental Health, and Centre for Youth Mental Health, The University of Melbourne, Melbourne, Australia
| | - Mark Jordans
- Centre for Global Mental Health, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Research and Development Department, War Child, Amsterdam, Netherlands
| | - Christian Kieling
- Department of Psychiatry, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Child & Adolescent Psychiatry Division, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | | | | | - Olayinka Omigbodun
- Centre for Child and Adolescent Mental Health and Department of Psychiatry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Wietse Tol
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Peter C Alderman Foundation, Bedford, NY, USA
| | - Vikram Patel
- Department of Global Health and Social Medicine, Harvard Medical School, Cambridge, MA, USA; London School of Hygiene & Tropical Medicine, London, UK; Sangath, Porvorim, Goa, India; Centre for Chronic Conditions and Injuries, Public Health Foundation of India, Delhi, India
| | - Shekhar Saxena
- Department of Mental Health and Substance Abuse, World Health Organization, Geneva, Switzerland
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Examining the Association Between Different Aspects of Socioeconomic Status, Race, and Disability in Hawaii. J Racial Ethn Health Disparities 2018; 5:1247-1253. [DOI: 10.1007/s40615-018-0471-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 02/07/2018] [Accepted: 02/07/2018] [Indexed: 10/18/2022]
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49
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Ribeiro WS, Bauer A, Andrade MCR, York-Smith M, Pan PM, Pingani L, Knapp M, Coutinho ESF, Evans-Lacko S. Income inequality and mental illness-related morbidity and resilience: a systematic review and meta-analysis. Lancet Psychiatry 2017; 4:554-562. [PMID: 28552501 DOI: 10.1016/s2215-0366(17)30159-1] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 03/24/2017] [Accepted: 04/03/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Studies of the association between income inequality and mental health have shown mixed results, probably due to methodological heterogeneity. By dealing with such heterogeneity through a systematic review and meta-analysis, we examine the association between income inequality, mental health problems, use of mental health services, and resilience (defined as the ability to cope with adversity). METHODS We searched the Global Health, PsychARTICLES, PsycINFO, Social Policy and Practice, Embase and MEDLINE databases up to July 6, 2016, for quantitative studies of the association of income inequality with prevalence or incidence of mental disorders or mental health problems, use of mental health services, and resilience. Eligible studies used standardised instruments at the individual level, and income inequality at the aggregated, contextual, and ecological level. We extracted study characteristics, sampling, exposure, outcomes, statistical modelling, and parameters from articles. Because several studies did not provide enough statistical information to be included in a meta-analysis, we did a narrative synthesis to summarise results with studies categorised as showing either a positive association, mixed results, or no association. The primary outcome in the random-effects meta-analysis was mental health-related morbidity, defined as the prevalence or incidence of any mental health problem. This study is registered with PROSPERO, number CRD42016036377. FINDINGS Our search identified 15 615 non-duplicate references, of which 113 were deemed potentially relevant and were assessed for eligibility, leading to the inclusion of 27 studies in the qualitative synthesis. Nine articles found a positive association between income inequality and the prevalence or incidence of mental health problems; ten articles found mixed results, with positive association in some subgroups and non-significant or negative association in other subgroups; and eight articles found no association between income inequality and mental health problems. Of the nine articles included in our meta-analysis, one reported a positive association between income inequality and mental health problems, six reported mixed results, and two reported no association. Pooled Cohen's d effect sizes for the association between income inequality and any mental disorder or mental health problems were 0·06 (95% CI 0·01-0·11) for any mental disorder, and 0·12 (0·05-0·20) for depressive disorders. Our meta-regression analysis showed that none of the factors considered (sample size, contextual level at which income inequality was assessed, quality assessment, type of instruments, and individual income as control variable) explained heterogeneity between studies (I2 89·3%; p<0·0001). Only one study investigated the association between income inequality and resilience; it found greater income inequality was associated with higher prevalence of depression only among individuals with low income. The only study of the role of income inequality as a determinant of the use of mental health services reported no association. INTERPRETATION Income inequality negatively affects mental health but the effect sizes are small and there is marked heterogeneity among studies. If this association is causal and growing income inequality does lead to an increase in the prevalence of mental health problems, then its reduction could result in a significant improvement in population wellbeing. FUNDING None.
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Affiliation(s)
- Wagner Silva Ribeiro
- Personal Social Service Research Unity, London School of Economics and Political Science, London, UK.
| | - Annette Bauer
- Personal Social Service Research Unity, London School of Economics and Political Science, London, UK
| | | | | | - Pedro Mario Pan
- Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Luca Pingani
- Università degli studi di Modena e Reggio Emilia, Italy
| | - Martin Knapp
- Personal Social Service Research Unity, London School of Economics and Political Science, London, UK
| | | | - Sara Evans-Lacko
- Personal Social Service Research Unity, London School of Economics and Political Science, London, UK
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50
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Wilkinson RG, Pickett KE. The enemy between us: The psychological and social costs of inequality. EUROPEAN JOURNAL OF SOCIAL PSYCHOLOGY 2017. [DOI: 10.1002/ejsp.2275] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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