Attrition in Studies of Cognitive Aging
نویسنده
چکیده
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منابع مشابه
Proxy interviews and bias in the distribution of cognitive abilities due to non-response in longitudinal studies: a comparison of HRS and ELSA.
Cognitive impairment is an important topic for longitudinal studies of ageing, 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 i...
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American society is in the midst of an enduring change in age-structure. According to the U.S. Census, people aged 65 years or older represented less than 5.4% of the American population in 1930, had grown to 12.4% of the population by 2000, and are projected to reach 20% by 2030. Investigations of modifiable social, behavioral, and lifestyle factors that influence the health and well-being of ...
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Some elderly appear to resist age-related decline in cognitive functions, but the neural correlates of successful cognitive aging are not well known. Here, older human participants from a longitudinal study were classified as successful or average relative to the mean attrition-corrected cognitive development across 15-20 years in a population-based sample (n = 1561). Fifty-one successful elder...
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INTRODUCTION Variations across studies in the association between blood pressure (BP) and cognition might be explained partly by duration of exposure to hypertension and partly by nonrandom attrition over time. Pulse pressure (PP) reflects arterial stiffness which may better reflect chronicity of hypertension. METHODS Over six annual cycles, 1954 individuals aged 65+ years from a prospective ...
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There is marked variability in both onset and rate of episodic-memory decline in aging. Structural magnetic resonance imaging studies have revealed that the extent of age-related brain changes varies markedly across individuals. Past studies of whether regional atrophy accounts for episodic-memory decline in aging have yielded inconclusive findings. Here we related 15-year changes in episodic m...
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تاریخ انتشار 2013