期刊
BRITISH JOURNAL OF PSYCHIATRY
卷 219, 期 6, 页码 686-694出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1192/bjp.2021.142
关键词
Psychosis; syndemic; inflammation; adversity; social deprivation
类别
资金
- Lankelly Chase grant
- Centre for Psychiatry, Queen Mary, University of London
This study investigated the clustering and interactions of childhood and contemporary adversities in relation to psychotic disorders, finding that interactions between these adversities are crucial in preventive and therapeutic interventions, especially among ethnic minorities. The findings highlight the importance of understanding the syndemic nature of multiple adversities in the development of psychoses.
Background Psychosis is associated with many forms of adversity, deprivation and living in urban areas. Aims To investigate whether psychosis is part of a syndemic of multiple adversities. Method Drawing on UK Biobank (UKBB) data (Project ID: 57601), we sought to understand mechanisms by which childhood, recent/contemporary and place-based adversities might cluster and interact to be implicated in pathways by which psychoses evolve. We investigated the associations between adversities, potential mediating inflammatory markers and ICD-10 diagnoses (F20-F31) of psychotic disorders. We fitted logistic regression models initially including all relevant candidate variables and used backwards deletion to retain theoretically plausible and statistically significant (P < 0.05) associations with psychotic disorders. The candidate variables were entered in a partial least squares structural equation model (PLS-SEM) to test for syndemic interactions between risk factors. We tested whether the findings were sensitive to demographics, gender and ethnicity. Results We fitted a PLS-SEM including psychosis as a syndemic outcome, and identified three latent constructs: lifetime adversity, current adversity and biomarkers. Factor loadings were above 0.30, and all structural paths were significant (P < 0.05). There were moderate associations between lifetime adversity and current adversity (standardised coefficient s.c. = 0.178) and between current adversity and biomarkers (s.c. = 0.227). All three latent constructs showed small but significant associations with psychosis (s.c. < 0.04). Lifetime adversity and current adversity were more strongly associated among ethnic minorities (combined) than White British people. Conclusions Our findings stress the importance of interactions between childhood and contemporary adversities in preventive and therapeutic interventions for psychotic disorders, especially among ethnic minorities.
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