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首页> 外文期刊>Annals of epidemiology >Application of a new method for linking anonymous survey data in a population of soldiers returning from Iraq.
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Application of a new method for linking anonymous survey data in a population of soldiers returning from Iraq.

机译：一种用于链接匿名调查数据的新方法的应用，该数据来自伊拉克回国的士兵。

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PURPOSE: This study provides a unique application of a procedure to link anonymous survey records as a means to assess mental health problems among soldiers after return from deployment to Iraq. The research purpose is to validate the use of a linkage method on anonymous survey data for longitudinal analysis. METHODS: This research analyzes surveys completed by soldiers at three (N = 4,903), six (N = 3,110), and 12 (N = 2,544) months post-Operation Iraqi Freedom (OIF) deployment. To protect anonymity while also allowing for longitudinal analysis, the survey includes four self-generated codes for matching the surveys from individual soldiers. The surveys were linked using Link Plus (Centers for Disease Control and Prevention, Atlanta, GA). Three matched groups (3-6 months, 6-12 months, and 3-12 months) were created, matching on the anonymous codes and demographic variables. An internal validation of the linkage results was performed and selection bias was assessed. RESULTS: The matched records showed very high agreement in variables not included in the matching procedure and were similar to the unmatched records with regard to demographics and post-traumatic stress disorder (PTSD) prevalence. CONCLUSIONS: The use of self-generated codes protects anonymity while the method utilized and validated in this paper allows for longitudinal data analysis. The results support an absence of any notable selection bias.
机译：目的：本研究为将匿名调查记录链接在一起的程序提供了独特的应用，以评估从部署到伊拉克后士兵中的心理健康问题。研究目的是验证对匿名调查数据使用链接方法进行纵向分析。方法：这项研究分析了在伊拉克自由行动（OIF）部署后三个月（N = 4,903），六个（N = 3,110）和12（N = 2,544）个月完成的调查。为了保护匿名性同时还允许进行纵向分析，调查包括四个自生成的代码，用于匹配来自单个士兵的调查。使用Link Plus（佐治亚州亚特兰大疾病控制与预防中心）将调查链接在一起。创建了三个匹配的组（3-6个月，6-12个月和3-12个月），在匿名代码和人口统计变量上匹配。对连锁结果进行了内部验证，并对选择偏倚进行了评估。结果：匹配的记录在匹配过程中未包含的变量中显示出很高的一致性，并且在人口统计学和创伤后应激障碍（PTSD）患病率方面与未匹配的记录相似。结论：自生成代码的使用可以保护匿名性，而本文使用和验证的方法可以进行纵向数据分析。结果支持不存在任何明显的选择偏差。

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