Strategies for Using the National Death Index and the Social Security Administration for Death Ascertainment in Large Occupational Cohort Mortality Studies
Strategies for Using the National Death Index and the Social Security Administration for Death Ascertainment in Large Occupational Cohort Mortality Studies
复制标题
DOI：
10.1093/aje/kwq130
复制
发表时间：
2010-08-15
影响因子：
5
通讯作者：
Jorgensen, Gail
中科院分区：
文献类型：
--
作者：
Wojcik, Nancy C.;Huebner, Wendy W.;Jorgensen, Gail
这篇文章描述了一个多阶段的过程，以提高在大型员工队列中确定死亡的完整性和时间/成本效益。该流程使用社会保障管理局(SSA)的生命状态数据服务来识别可以被确认为活着的人，以减少提交国家死亡指数(NDI)搜索的记录数量。通过提交已知活着和已知已故的人的样本，验证了SSA结果的准确性。对于NDI搜索结果，应用基于匹配变量离散组合的算法来区分NDI记录为真、假或可疑匹配，以减少向州政府申请死亡证明的数量。随后的决策是基于不同阶段的人工审查。在一个超过200,000名员工的队列中，SSA生命状态搜索将NDI死亡记录搜索的大小减少了85%。该算法将数千条NDI记录分类为15个不同的层，并将死亡证明请求的数量减少了76%。作者认为，通过从各州获得死亡证明的纸质副本，匹配过程得到了加强，因为死亡证明通常会提供额外的信息，并有助于确定公司员工的真正匹配。
This paper describes a multistage process to improve the completeness and time-/cost-effectiveness of ascertaining deaths in large employee cohorts. The process uses the vital status data service of the Social Security Administration (SSA) to identify people who can be confirmed as living, in order to reduce the number of records submitted for a National Death Index (NDI) search. The accuracy of SSA results is verified by submitting a sample of known-living and known-deceased people. For the NDI search results, an algorithm based on a discrete combination of matching variables is applied to distinguish NDI records as true, false, or questionable matches to reduce the number of death certificate requests to state offices. Subsequent decision making is based on manual reviews at various stages. In a cohort of over 200,000 employees, an SSA vital status search reduced the size of the NDI death record search by 85%. The algorithm sorted thousands of NDI records into 15 distinct strata and reduced the number of death certificate requests by 76%. The authors believe that the matching process is enhanced by obtaining paper copies of death certificates from the states, because death certificates often provide additional information and aid in determining true matches to company employees.