摘要
目的 了解广州市全血献血者的意向献血地点及其空间分布。方法 基于地理信息系统(GIS)技术及其ArcGIS软件,迁移其他领域中成熟应用的空间分布分析方法,对2021年8月1日~2022年7月30日在广州血液中心17个全血献血点献血的献血者做随机分层抽样,并收集其意向献血地点,通过高德地图导出为GCJ-02坐标,经Python的pandas等模块转化为世界丈量系统(WGS)84坐标;同法将现有17个献血点地点转化为世界丈量系统(WGS)84坐标后,加载到ArcGIS软件的Arcmap组件。对献血者意向献血地点做聚类分析并获得中位数中心,对现有献血点计算3环缓冲区;以意向献血点是否被现有献血点缓冲区覆盖或紧邻作为二者是否“匹配”的判断标准。结果 共收集40 523(人)份有效献血者意向献血地点,经空间分布分析获得的17个意向献血点中有8个被现有献血点缓冲区覆盖或紧邻,其他9个意向献血点距离现有献血点较远。结论 利用GIS技术及ArcGIS软件对献血者献血意向地点做空间分布分析,可发现现有献血点是否满足献血者对于献血地点便利性的服务需求,为血站不断优化献血服务提供科学依据。
Objective To apply the spatial distribution analysis based on ArcGIS software, which has been applied widely in other fields, so as to analyze the intended locations for whole blood donation. Methods After a random stratified sampling was conducted among blood donors in the 17 donation sites during August 1 st, 2021-July 30 th, 2022,their intended blood donation locations were collected by an e-questionnaire. Addresses of donors′ intended donation locations were derived for GCJ-02 coordinates form and transformed by pandas module of Python to WGS84 coordinates, which further loaded to ArcGIS Arcmap module using Grouping Analysis for 17 median centers. The addresses of 17 blood donation sites in Guangzhou Blood Center were transformed to WGS84 coordinates and loaded to ArcGIS Arcmap module using the same methods for 3 ring buffer analysis. The criterion for judging whether the two were "matched" was whether the intended blood donation sites were covered by or adjacent to the 3 ring buffer zone of the existing blood donation sites. Results Of the 17 potential sites obtained from the spatial distribution analysis of 40 523 valid addresses of donors, 8 sites were covered or adjacent to the buffer of the existing donation sites, while the other 9 sites were far away from the existing donation sites.Conclusion By analyzing the spatial distribution of donors′ intended donation addresses, we can find out the service needs of donors for donating blood conveniently, which can provide basis for further blood donation service optimization.
作者
陈锦艳
谢桂芸
柯蓉蓉
郑晓晓
许颖莹
洪晓春
黎世杰
梁华钦
CHENJinyan;XIE Guiyun;KE Rongrong;ZHENG Xiaoxiao;XU Yingying;HONG Xiaochun;LI Shijie;LIANG Huaqin(Guangzhou Blood Center,Guangzhou 510095,China)
出处
《中国输血杂志》
CAS
2022年第12期1248-1251,共4页
Chinese Journal of Blood Transfusion
基金
广州市科技局科学研究计划项目(202002030447)
广州市医学重点学科(2021-2023年)项目。
