|Title||Using Medicare claims in identifying Alzheimer's disease and related dementias.|
|Publication Type||Journal Article|
|Year of Publication||Forthcoming|
|Authors||Jain, S, Rosenbaum, PR, Reiter, JG, Hoffman, GJ, Small, DS, Ha, J, Hill, AS, Wolk, DA, Gaulton, TG, Neuman, MD, Eckenhoff, RG, Fleisher, LA, Silber, JH|
|Journal||Alzheimer's & Dementia|
|Keywords||administrative data, Alzheimer's disease, cognitive impairment, Dementia, Medicare|
INTRODUCTION: This study develops a measure of Alzheimer's disease and related dementias (ADRD) using Medicare claims.
METHODS: Validation resembles the approach of the American Psychological Association, including (1) content validity, (2) construct validity, and (3) predictive validity.
RESULTS: We found that four items-a Medicare claim recording ADRD 1 year ago, 2 years ago, 3 years ago, and a total stay of 6 months in a nursing home-exhibit a pattern of association consistent with a single underlying ADRD construct, and presence of any two of these four items predict a direct measure of cognitive function and also future claims for ADRD.
DISCUSSION: Our four items are internally consistent with the measurement of a single quantity. The presence of any two items do a better job than a single claim when predicting both a direct measure of cognitive function and future ADRD claims.
|Grant List||RF1-AG-055390 / AG / NIA NIH HHS / United States|