Spatial Accessibility to Primary Care Facilities in Texas

Authors: Mei Yang*, Texas State University, F. Benjamin Zhan, Texas State University, Edwin Chow, Texas State University
Topics: Medical and Health Geography
Keywords: Spatial Accessibility, Primary Care, Texas, GIS, Urbanization, Disability
Session Type: Virtual Poster
Day: 4/7/2021
Start / End Time: 11:10 AM / 12:25 PM
Room: Virtual 52
Presentation File: No File Uploaded


Access to primary care has been recognized as one of the most important factors contributing to the health and wellness of general population. This study attempts to first identify the variations of spatial accessibility to primary care facilities at the census tract level in Texas. And then explore the relationships between spatial accessibility and socioeconomic and demographic factors. These factors include insurance, disability, education, and urbanization. The integrated Floating Catchment Area (iFCA) Method was used to calculate an index reflecting spatial accessibility at a location. Spearman’s correlations were used to quantify the correlations of spatial accessibility with neighborhood socioeconomic and demographic factors. The results show that higher Primary Care (PC) accessibility are found in or around major metropolitan areas such as Dallas, Austin, San Antonio, and Houston. West Texas and rural areas in Texas have significant lower PC accessibility than east Texas, central Texas, and urban areas in Texas. Only 4.34% areas in Texas have high PC accessibility and 4.37% of Texans live in these high PC accessibility areas. A high ratio of urbanization and low ratio of disability are associated with a high ratio of PC accessibility at the census tract level.

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