文章基本信息

标题：Proxy interviews and bias in cognition measures due to non-response in longitudinal studies: a comparison of HRS and ELSA
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作者：David R Weir ; Jessica D Faul ; Kenneth M Langa 等
期刊名称：Longitudinal and Life Course Studies
印刷版ISSN：1757-9597
出版年度：2011
卷号：2
期号：2
页码：170-184
DOI：10.14301/llcs.v2i2.116
语种：English
出版社：Society for Longitudinal and Life Course Studies
摘要：Cognitive impairment is an important topic for longitudinal studies of aging, and one that directly affects ability to participate. We study bias in measured cognition due to non-response in the Health and Retirement Study (HRS) and the English Longitudinal Study of Ageing (ELSA). The much greater use of proxy interviews for impaired respondents in the HRS virtually eliminates attrition bias in measured cognition, whereas there is a noticeable bias in ELSA where proxies are infrequently used. Using Medicare claims data for the HRS we are able to compare cognitive impairment among dropouts post-attrition with that for continuing participants. There again we see the use of proxy interviews virtually eliminates a bias that would otherwise appear.