CDC 2019 (Calculated) Social Vulnerability Index by County and Tracts for Arizona
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ATSDR’s Geospatial Research, Analysis & Services Program (GRASP) created the Centers for Disease Control and Prevention Social Vulnerability Index (CDC SVI or simply SVI) to help public health officials and emergency response planners identify and map the communities that will most likely need support before, during, and after a hazardous event. The SVI is derived from American Community Survey (ACS), 5-year data. The CDC releases updated SVI data every two years. The Arizona Department of Health Services (ADHS) calculates yearly SVI updates in between CDC release years using an R script to reproduce CDC's SVI calculations and newly released ACS 5-year data. All methods and background information for SVI can be found at: https://www.atsdr.cdc.gov/placeandhealth/svi/documentation/SVI_documentation_2018.html As the R script is merely a reproduction of the CDC's calculations, any questions about the CDC's SVI methodology should be directed to svi_coordinator@cdc.gov If you find any discrepancies between the CDC's 2018 SVI values and the 2018 values generated from this R Script, please email gis@azdhs.gov. Please note that the SVI data set generated from this R script does not include 2 variables that are present in the CDC's data set. Those are AREA_SQMI (Tract area in square miles) and E_DAYPOP (Adjunct variable - Estimated daytime population, LandScan 2018). These variables do not affect the SVI calculations but may be useful for mapping the data. LAST UPDATED: October 2021 UPDATE FREQUENCY: None planned
美国毒物和疾病登记署（Agency for Toxic Substances and Disease Registry, ATSDR）的地理空间研究、分析与服务项目（Geospatial Research, Analysis & Services Program, GRASP）研发了美国疾病控制与预防中心（Centers for Disease Control and Prevention, CDC）社会脆弱性指数（Social Vulnerability Index, SVI，简称SVI），旨在协助公共卫生官员与应急响应规划人员识别并标注出在危险事件发生前、发生期间及发生后最亟需支援的社区。 该指数的数据源自美国社区调查（American Community Survey, ACS）五年期统计数据。美国疾控中心每两年发布一次更新后的SVI数据集。 亚利桑那州卫生服务部（Arizona Department of Health Services, ADHS）会在美国疾控中心两次发布周期之间，借助复刻美国疾控中心SVI计算逻辑的R脚本，结合最新发布的ACS五年期数据，每年更新一次SVI数据。 有关SVI的全部方法与背景信息可访问以下链接查阅：https://www.atsdr.cdc.gov/placeandhealth/svi/documentation/SVI_documentation_2018.html。 由于本R脚本仅为复刻美国疾控中心的计算流程，若您对美国疾控中心SVI的方法论存在任何疑问，请发送邮件至svi_coordinator@cdc.gov。若您发现美国疾控中心2018版SVI数值与本R脚本生成的2018版SVI数值存在差异，请发送邮件至gis@azdhs.gov。 请注意，本R脚本生成的SVI数据集缺失美国疾控中心官方数据中包含的两项变量：分别为AREA_SQMI（普查区域面积，单位：平方英里）与E_DAYPOP（辅助变量——估计日间人口，基于LandScan 2018数据）。上述两项变量不会对SVI的计算结果产生影响，但可用于数据制图可视化。 最后更新时间：2021年10月；更新计划：暂无后续更新安排
