Aging, Demographics, and Memory Study (ADAMS)


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The Aging, Demographics, and Memory Study (ADAMS), a supplement to the Health and Retirement Study (HRS), was funded by the National Institute on Aging with the specific aim of conducting a population-based study of dementia. HRS investigators partnered with investigators at Duke University Medical Center to conduct ADAMS. The purpose of the study was to conduct in-person clinical assessments for dementia on selected HRS respondents (n=856) in order to gather information on their cognitive status. A diagnosis of dementia, cognitive impairment but not demented (CIND), or normal cognition was assigned on the basis of this assessment. Prior community-based studies of dementia have focused on a particular geographical area or have been based on nationally distributed samples that are not representative of the population. This study is the first of its kind to conduct in-home assessments of dementia in a national sample that is representative of the U. S. elderly population. The data from the participants in ADAMS has been linked to the extensive longitudinal data collected on these same individuals as part of HRS. Thus a wide range of scientific questions related to aging and health can be addressed with the data. The data is available for use by other researchers; details on the data and procedures for accessing the data can be found on the HRS website. ADAMS was funded by The National Institute on Aging as a supplement to the HRS (U01 AG09740).

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Primary references:

Langa, K.M., Plassman, B.L., Wallace, R.B., Herzog, A.R., Heeringa, S.G., Ofstedal, M.B., Burke, J.R., Fisher, G.G., Fultz, N.H., Hurd, M.D., Potter, G.G., Rodgers, W.L., Steffens, D.C., Weir, D.R. Willis, R.J. (2005). The Aging, Demographics, and Memory Study: Study Design and Methods. Neuroepidemiology. 25:181-191.

Plassman, B.L., Langa, K.M., Fisher, G.G., Heeringa, S.G., Weir, D.R., Ofstedal, M.B., Burke, J.R., Hurd, M.D., Potter, G.G., Rodgers, W.L., Steffens, D.C., Willis, R.J., Wallace, R.B. (2007). Prevalence of Dementia in the United States: The Aging, Demographics, and Memory Study. Neuroepidemiology. 29:125-132.

Plassman, B.L., Langa, K.M., McCammon, R.J., Fisher, G. G. Potter, G.G. Burke, J.R., Steffens, D.C., Foster, N.L., Giordani, B., Unverzagt, F.W., Welsh-Bohmer, K.A., Heeringa, S.G., Weir, D.R., Wallace, R.B. Incidence of dementia and cognitive impairment not dementia in the United States. Ann Neurology. 70:418-426.