Mapping the invisible barriers to healthy living
In short: In North Carolina's Piedmont Triad, your health might be determined by more than just personal choice. Researchers are uncovering how the physical layout of a region—the distance between where you live and where nutritious food is sold—creates hidden disparities in chronic diseases like obesity and diabetes.
Researchers are developing new ways to quantify 'food deserts' by combining two different types of measurements. Traditionally, scientists have used either straight-line distances (which are easy to calculate but ignore roads) or map-based driving routes (which are accurate but computationally heavy). By using a multiple imputation approach, researchers can now leverage the speed of straight-line data while maintaining the accuracy of real-world driving paths for specific subsets of neighborhoods. This measurement error framework allows for the creation of informative placeholders where map-based data is missing. It provides a more balanced estimate than using only one method alone.
The Piedmont Triad—a metropolitan region anchored by Greensboro, Winston-Salem, and High Point—served as a primary testing ground for this methodology. By applying these models to the Triad's geography, scientists were able to quantify the direct associations between neighborhood-level access to healthy foods and two specific health outcomes: diabetes and obesity. The region's population was estimated at over 1.6 million people in 2012. This area functions as a major hub for manufacturing, transportation, and healthcare services.
This research matters because it allows public health officials to identify high-risk, low-access communities more efficiently. Instead of needing perfect map data for every single street corner, this method predicts a full landscape of food access across an entire region. It provides a tool for targeted interventions in areas where the physical environment makes healthy living a structural challenge rather than just a personal one. This approach helps researchers predict food access landscapes without requiring map measurements for every neighborhood. It offers improved efficiency compared to models that only use complete cases.
Opens the Intellect+ feed with this card first. Swipe up for the next one.
Sources
- Summary by Intellect · source: Piedmont Triad
- Also: Combining Straight-Line and Map-Based Distances to Investigate the Connection Between Proximity to Healthy Foods and Disease.
To cite this card, link to https://intellectplus.co.uk/app/health-piedmont-triad.
How we source, check and correct cards: Editorial standards.
General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.
Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?
Related
More in Nutrition · More in Health · Latest · A–Z · All topics
