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. 2013 Nov 4;10(11):5750-80.
doi: 10.3390/ijerph10115750.

Simulation models for socioeconomic inequalities in health: a systematic review

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Simulation models for socioeconomic inequalities in health: a systematic review

Niko Speybroeck et al. Int J Environ Res Public Health. .

Abstract

Background: The emergence and evolution of socioeconomic inequalities in health involves multiple factors interacting with each other at different levels. Simulation models are suitable for studying such complex and dynamic systems and have the ability to test the impact of policy interventions in silico.

Objective: To explore how simulation models were used in the field of socioeconomic inequalities in health.

Methods: An electronic search of studies assessing socioeconomic inequalities in health using a simulation model was conducted. Characteristics of the simulation models were extracted and distinct simulation approaches were identified. As an illustration, a simple agent-based model of the emergence of socioeconomic differences in alcohol abuse was developed.

Results: We found 61 studies published between 1989 and 2013. Ten different simulation approaches were identified. The agent-based model illustration showed that multilevel, reciprocal and indirect effects of social determinants on health can be modeled flexibly.

Discussion and conclusions: Based on the review, we discuss the utility of using simulation models for studying health inequalities, and refer to good modeling practices for developing such models. The review and the simulation model example suggest that the use of simulation models may enhance the understanding and debate about existing and new socioeconomic inequalities of health frameworks.

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Figures

Figure 1
Figure 1
Schematic representation of the agent-based simulation model of alcohol abuse in two neighborhoods with distinct socioeconomic levels.
Figure 2
Figure 2
Flow of information through the different phases of the review.
Figure 3
Figure 3
Structural determinants included in the selected studies.
Figure 4
Figure 4
Health outcomes included in the selected studies.
Figure 5
Figure 5
Simulated prevalence of alcohol abuse in two neighborhoods (“nbhA” and “nbhB”, with high, respectively, low, socioeconomic status), assuming no education-dependent mobility between neighborhoods; the thin lines (highly variable) represent the output of 100 individual model runs, while the thick lines represent the averages of all individual model runs.
Figure 6
Figure 6
Simulated prevalence of alcohol abuse in two neighborhoods (“nbhA” and “nbhB”, with low, respectively, high, socioeconomic status), assuming education-dependent moving between neighborhoods; the thin lines represent the output of 100 individual model runs, while the thick lines represent the averages of all individual model runs.
Algorithm A1
Algorithm A1
R code for the agent-based model example.

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