验证社会保障死亡索引 (SSDI)：研究人员可获得的重要结果数据库。

Validation of the Social Security Death Index (SSDI): An Important Readily-Available Outcomes Database for Researchers.

机构信息

Division of Emergency Medicine, Stanford University.

出版信息

West J Emerg Med. 2008 Jan;9(1):6-8.

PMID:19561695

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2672222/

Abstract

STUDY OBJECTIVE

To determine the accuracy of the online Social Security Death Index (SSDI) for determining death outcomes.

METHODS

We selected 30 patients who were determined to be dead and 90 patients thought to be alive after an ED visit as determined by a web-based searched of the SSDI. For those thought to be dead we requested death certificates. We then had a research coordinator blinded to the results of the SSDI search, complete direct follow-up by contacting the patients, family or primary care physicians to determine vital status. To determine the sensitivity and specificity of the SSDI for death at six months in this cohort, we used direct follow-up as the criterion reference and calculated 95% confidence intervals.

RESULTS

Direct follow-up was completed for 90% (108 of 120) of the patients. For those patients 20 were determined to be dead and 88 alive. The dead were more likely to be male (57%) and older [(mean age 83.9 (95% CI 79.1 - 88.7) vs. 60.9 (95% CI 56.4 - 65.4) for those alive]. The sensitivity of the SSDI for those with completed direct follow-up was 100% (95% CI 91 -100%) with specificity of 100% (95% CI 98-100%). Of the 12 patients who were not able to be contacted through direct follow-up, the SSDI indicated that 10 were dead and two were alive.

CONCLUSIONS

SSDI is an accurate measure of death outcomes and appears to have the advantage of finding deaths among patients lost to follow-up.

摘要

研究目的

确定在线社会安全死亡索引 (SSDI) 确定死亡结局的准确性。

方法

我们选择了 30 名经 ED 就诊后被确定为死亡的患者和 90 名被认为仍存活的患者，这些患者是通过在线搜索 SSDI 确定的。对于那些被认为已经死亡的患者，我们请求了死亡证明。然后，我们让一名研究协调员对 SSDI 搜索结果进行盲法评估，通过联系患者、家属或初级保健医生直接进行后续随访以确定生存状况。为了确定 SSDI 在该队列中六个月时死亡的灵敏度和特异性，我们使用直接随访作为标准参考，并计算了 95%置信区间。

结果

直接随访完成了 90%（108/120）的患者。对于这些患者，有 20 人被确定为死亡，88 人存活。死亡患者更可能是男性（57%）且年龄更大 [(平均年龄 83.9（95%CI 79.1 - 88.7）与那些存活者相比为 60.9（95%CI 56.4 - 65.4)]。对于那些完成直接随访的患者，SSDI 的灵敏度为 100%（95%CI 91-100%），特异性为 100%（95%CI 98-100%）。在无法通过直接随访联系到的 12 名患者中，SSDI 显示有 10 人死亡，2 人存活。