Abstract
The aim of this article is to promote the use of knowledge visualization frameworks in the creation and transfer of complex public health knowledge. The accessibility to healthy food items is an example of complex public health knowledge. The United States Department of Agriculture Food Access Research Atlas (FARA) dataset contains 147 variables for 72,864 census tracts and includes 16 food accessibility variables with binary values (0 or 1). Using four-digit and 16-digit binary patterns, we have developed data analytical procedures to group the 72,684 U.S. census tracts into eight and forty groups respectively. This value-added FARA dataset facilitated the design and production of interactive knowledge visualizations that have a collective purpose of knowledge transfer and specific functions including new insights on food accessibility and obesity rates in the United States. The knowledge visualizations of the binary patterns could serve as an integrated explanation and prediction system to help answer why and what-if questions on food accessibility, nutritional inequality and nutrition therapy for diabetic care at varying geographic units. In conclusion, the approach of knowledge visualizations could inform coordinated multi-level decision making for improving food accessibility and reducing chronic diseases in locations defined by patterns of food access measures.
Highlights
In the context of a community-based food system, research on food access is in the dimensions of availability, accessibility, affordability, acceptability, and accommodation [1,2,3]
We developed a knowledge visualization to provide an overview of the absence (0) or presence (1) of the 16 variables in the 72,684 census tracts (Figure 2)
This multi-level approach could inform coordinated multi-level decision making for improving food accessibility and reducing chronic diseases in locations defined by food access measures
Summary
In the context of a community-based food system, research on food access is in the dimensions of availability, accessibility, affordability, acceptability, and accommodation [1,2,3]. Food accessibility is the geographic location of the food supply and ease of getting to that location [2,3]. Measures for food access within geographic units are provided at the individual and area levels [4]. Res. Public Health 2020, 17, 1263; doi:10.3390/ijerph17041263 www.mdpi.com/journal/ijerph
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