A Comparative Study on Statistical Models for Evaluating the Spatial Accessibility to Healthcare Services
10.11783/j.issn.1002-3674.2024.01.007
- VernacularTitle:卫生服务空间可及性评估模型的比较研究
- Author:
Qinglian QIN
1
;
Bin XU
;
Xue WEI
Author Information
1. 广西医科大学公共卫生学院流行病与生物统计学系(530021)
- Keywords:
Spatial accessibility to healthcare services;
Provider-to-population ratios method;
Gravity-based model;
Two-step floating catchment area method(2SFCA);
Improved 2SFCA
- From:
Chinese Journal of Health Statistics
2024;41(1):35-40,44
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the principles,methods and applications of provider-to-population ratios method,gravity-based model,two-step floating catchment area(2SFCA)method and improved two-step floating catchment area method for evaluating the spatial accessibility to healthcare services.Methods Taking the spatial accessibility to maternal and child healthcare services in Nanning prefecture for example,we collected data on vector map,transportation network,population size,and the number of health professionals in maternal and child health institutions.Provider-to-population ratios method,gravity-based model,2SFCA method and improved 2SFCA method were applied to evaluate the spatial accessibility to maternal and child healthcare services,on the scales of county level,township level and village level,respectively.Results The four models showed that the spatial heterogeneity of spatial accessibility to maternal and child health services was significant,and the spatial accessibility was gradually decreased from urban areas of Nanning to rural areas.However,regions with high spatial accessibility and regions with low spatial accessibility,decreasing trend in spatial accessibility across regions,the median and inter quartile range of spatial accessibility were different across the four models.Conclusion The practical significance in evaluating spatial accessibility to healthcare services for provider-to-population ratios method,gravity-based model,2SFCA method and improved 2SFCA method was different,yet the spatial accessibility varied somewhat across the four models.Thus,integrating findings of the four models based on multi space scales is strongly recommended to evaluate the spatial accessibility to healthcare services comprehensively and robustly.
