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Original Article

A system dynamics model to simulate sustainable interventions on chronic disease outcomes in an urban community

, , &
Pages 140-155 | Received 29 Aug 2013, Accepted 09 Jun 2014, Published online: 19 Dec 2017
 

Abstract

Socio-demographics of urban US populations have been associated with poor health status and chronic disease. Patterns of rising chronic disease prevalence have persisted in populations with lower socio-economic status despite substantial and costly public health efforts to the contrary. In this paper, we used a system dynamics model to simulate chronic disease prevalence, along with potential interventions, for a low-income urban community in Chicago, Illinois. We hypothesized that the ‘triple bottom line’ of sustainability—addressing economic, social, and environmental issues—would be key to mitigation and reduction of chronic disease over time in such a community. The aim was to inform decision making about urban design and public health programme planning towards formulation of approaches—some beyond the traditional boundaries of health interventions—to improve community chronic disease outcomes over time. We found that single interventions on the constructs of Income and Employment, Neighbourhood Attractiveness, and Social Cohesion were most impactful in reducing or reversing the rise of chronic disease prevalence. Increasing Housing Capacity allowed the Neighbourhood Attractiveness intervention to have a greater impact. In addition, interventions in Neighbourhood Attractiveness and Chronic Disease Prevention produced a greater combined mitigating effect on chronic disease prevalence than the sum of the individual intervention effects. Findings suggest that socio-environmental conditions should be addressed, with consideration of population migration dynamics, in formulating viable and sustainable solutions to improve community-level health outcomes such as chronic disease prevalence.

Acknowledgements

We thank the anonymous reviewers who provided substantive feedback that improved the paper. In addition, we acknowledge Sheila Elijah-Barnwell, PhD, AIA, EDAC, and HDR Architecture, who initiated collaborative needs assessment research in Chicago that spurred our thinking about the potential impacts of interventions to impact health sustainably in such currently underserved communities.

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