Using Medicare claims in identifying Alzheimer's disease and related dementias. Issue 3 (8th October 2020)

• Record Type: Journal Article
• Authors: Jain, Siddharth; Rosenbaum, Paul R.; Reiter, Joseph G.; Hoffman, Geoffrey; Small, Dylan S.; Ha, Jinkyung; Hill, Alexander S.; Wolk, David A.; Gaulton, Timothy; Neuman, Mark D.; Eckenhoff, Roderic G.; Fleisher, Lee A.; Silber, Jeffrey H.
• Is Part Of: Alzheimer's & dementia. Volume 17:Issue 3(2021)
• Page Start: 515
• Page End: 524
• Publication Date: 2020-10-08
• Subjects: administrative data -- Alzheimer's disease -- Alzheimer's disease and related dementias -- cognitive impairment -- dementia -- health and retirement study -- Medicare -- Medicare claims; Alzheimer's disease -- Periodicals; Alzheimer Disease -- Periodicals; Dementia -- Periodicals; Démence; Maladie d'Alzheimer; Périodique électronique (Descripteur de forme); Ressource Internet (Descripteur de forme); 616.83
• DOI: 10.1002/alz.12199
• Languages: English
• ISSNs: 1552-5260

Abstract

Abstract: 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.