Abstract
Geographic Information Systems (GIS) are considered essential tools to analyze spatially referenced health data. The purpose of this scoping review is to describe how GIS is used in pharmacy specific health research. During July 2020, the following databases were searched: EMBASE, MEDLINE (PubMed), Web of Science and Scopus. The search strategy included terms relating to spatial analysis and pharmacy. Studies were considered eligible if they involved the use of GIS and focused on pharmacies. A narrative and tabular synthesis of the results was carried out, structured around the spatial analysis methods utilized across studies, as well as the characteristics of pharmacies evaluated in studies. After a review of 6967 sources, 48 studies were included in this review. Twenty-nine studies were conducted in the United States (60.4%) and thirty-six focused on accessibility (75.0%; n=36). Twenty-two studies investigated the relationship between sociodemographic aspects of the population and the accessibility and availability of pharmacies (45.8%). Twelve studies (25.0%) performed distance analysis and six studies (12.5%) performed geostatistical analysis. Community pharmacies were the setting evaluated most frequently, with over-the-counter selling products being the most evaluated pharmacy variable (13.3%; n=6). Population density (58.3%; n=28), income indicators (43.8%; n=21) and minority community composition rates (41.7%; n=20) were the most used population variables. GIS have been increasingly used in pharmacy specific health research. Generally, research has sought to identify potential barriers to access and their effects on the population. Future research may benefit by utilizing robust spatial methods and applications across countries outside of the United States. Doing so could help to confirm the impact of sociodemographic characteristics on the availability and/or accessibility of pharmacies globally.
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