Geographic Information Systems (GIS) captures, stores, analyses and manages data that is geographically related. The system is capable of integrating, storing, analyzing, and sharing geographically-referenced information. GIS allows users to create queries that are interactive, analyze spatial information, data, and maps, and allows for the presentation of the results of these operations. Thus, GIS is used as a platform for information integration and as an analytical tool supporting detailed data analysis (Barnard & Hu, 2005). As Barnard and Hu (2005) note, traditional epidemiological constructs, such as disease rates and distributions, and utilization-based reporting, such as numbers and costs of services, alone cannot support the integrated view, which is needed for a population health approach. The Health GIS (HGIS) system enables data assets to be turned into person and population-based perspective. With a HGIS, the theory of the population health approach can be transformed......
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