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Using a systems thinking approach to explore the complex relationships between schizophrenia and premature mortality

Author

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  • Suhailah Ali
  • Eryn Wright
  • Fiona Charlson
Abstract
Background: People with schizophrenia have a higher risk of mortality compared to the general population, which has not improved over time. The majority of premature deaths are due to comorbid physical diseases, driven by interrelated factors operating at the individual level, through health systems and influenced by social determinants of health. A holistic understanding of this problem and the causal pathways linking these factors together is lacking. Aims: This study aims to understand why the mortality gap between people with schizophrenia and the general population is not improving by developing a causal loop diagram (CLD), a systems thinking approach which enables empirical research and theoretical knowledge to be combined into a visual representation of causal relationships and feedback loops. Method: The CLD was constructed using published literature, including both quantitative and qualitative studies, to identify key variables and relationships, and refined through consultation with experts in the topic area. Results: A total of 21 variables and 68 connections were included in the CLD, with 23 distinct feedback loops identified. Stigma and social support had the most connections, while unemployment was involved in the greatest number of feedback loops. Most feedback mechanisms served to reinforce behavioural risk factors, inadequate healthcare and social disadvantage. Conclusions: The CLD has created a holistic and dynamic understanding of the causal pathways driving the mortality gap between people with schizophrenia and the general population, providing insights into why it has persisted over time. One of the key findings was the critical role of social determinants in shaping health outcomes, highlighting the need for person-centred models of care and multisectoral government action.

Suggested Citation

  • Suhailah Ali & Eryn Wright & Fiona Charlson, 2024. "Using a systems thinking approach to explore the complex relationships between schizophrenia and premature mortality," International Journal of Social Psychiatry, , vol. 70(1), pages 70-79, February.
    • Handle: RePEc:sae:socpsy:v:70:y:2024:i:1:p:70-79
    DOI: 10.1177/00207640231194477
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    References listed on IDEAS

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    1. Young-Wolff, K.C. & Henriksen, L. & Delucchi, K. & Prochaska, J.J., 2014. "Tobacco retailer proximity and density and nicotine dependence among smokers with serious mental illness," American Journal of Public Health, American Public Health Association, vol. 104(8), pages 1454-1463.
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