期刊
RISK ANALYSIS
卷 42, 期 4, 页码 896-911出版社
WILEY
DOI: 10.1111/risa.13806
关键词
Enhanced 2-step floating catchment area (E2SFCA); GIS; hurricane; primary care physicians (PCP); spatial access
This study evaluates the impact of Hurricane Harvey on residents' spatial access to primary care physicians in Harris County, Texas. Despite an increase in PCPs, most areas experienced decreased access, with little variation among different socio-demographic groups. Therefore, it is recommended to consider users' needs, resource capacity, mobility options, and service quality in building a resilient and inclusive post-hurricane healthcare system.
Hurricanes can have a significant impact on the functioning and capacity of healthcare systems. However, little work has been done to understand the extent to which hurricanes influence local residents' spatial access to healthcare. Our study evaluates the change in spatial access to primary care physicians (PCPs) between 2016 and 2018 (i.e., before and after Hurricane Harvey) in Harris County, Texas. We used an enhanced 2-step floating catchment area (E2SFCA) method to measure spatial access to PCPs at the census tract level. The results show that, despite an increased supply of PCPs across the county, most census tracts, especially those in the northern and eastern fringe areas, experienced decreased access during this period as measured by the spatial access ratio (SPAR). We explain this decline in SPAR by the shift in the spatial distribution of PCPs to the central areas of Harris County from the fringe areas after Harvey. We also examined the socio-demographic impact in the SPAR change and found little variation in change among different socio-demographic groups. Therefore, public health professionals and disaster managers may use our spatial access measure to highlight the geographic disparities in healthcare systems. In addition, we recommend considering other social and institutional dimensions of access, such as users' needs, preferences, resource capacity, mobility options, and quality of healthcare services, in building a resilient and inclusive post-hurricane healthcare system.
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