Spatial distribution characteristics and accessibility of vaccination clinics in Guiyang
Objective To explore the rationality of the spatial distribution structure of vaccination clinics in Guiyang and to provide a reasonable reference for the spatial layout of vaccination clinics.Methods The address of vaccination clinics,vaccination volumes,and the number of staff in Guiyang from January to December 2021 were extracted from the immunization planning information platform of Guizhou Province.Spatial analysis methods such as mean nearest neighbor analysis,kernel density analysis,and two-step mobile search model in the ArcGIS10.8 software were used to analyze the spatial layout and accessibility of vaccination clinics in Guiyang,and the test level α=0.05.Results In 2021,a total of 241 vaccination clinics were set up in Guiyang,with a total of 2 499 181 doses of vaccines administered,0.97 vaccination stations per 10 000 people,and 0.33 vaccination staff per 10 000 people.The daily average vaccination volume was 6 847.07 doses,and the per capita daily vaccination volume was 3.81.The population density was 700 people/km2.The spatial distribution of vaccination clinics in Guiyang showed a significant clustering characteristic,with a Z-value of-8.795(P＜0.05),the central urban areas＞suburban areas＞remote areas.The main hot spots were concentrated in the central urban districts of Yunyan,Nanming,and Guanshanhu.The spatial accessibility value of the vaccination clinic in Guiyang was 2.53(R=10.27),with the highest in Yongjing Town,Xifeng County(10.28)and the lowest in Longshui Township,Zhaiji Township and Miping Township,Kaiyang County(0.01),a 1028-fold difference.Conclusions In this study,the total allocation of vaccination clinics was sufficient,but there was a large gap between the central urban areas,suburban areas,and remote areas.The allocation was still unbalanced from the perspective of spatial distribution characteristics and accessibility,and the construction of vaccination clinics did not match the spatial distribution of the resident population.
Vaccination clinicSpatial distribution characteristicsAccessibilityGeographic information system
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万方数据
