Title | Analysis of dementia in the US population using Medicare claims: Insights from linked survey and administrative claims data. |
Publication Type | Journal Article |
Year of Publication | 2019 |
Authors | Chen, Y, Tysinger, B, Crimmins, EM, Zissimopoulos, JM |
Journal | Alzheimers Dement (N Y) |
Volume | 5 |
Pagination | 197-207 |
Date Published | 2019 |
ISSN Number | 2352-8737 |
Keywords | Cognitive Ability, Dementia, Education, Medicare claims, Medicare linkage, Racial/ethnic differences |
Abstract | Introduction: Medicare claims data may be a rich data source for tracking population dementia rates. Insufficient understanding of completeness of diagnosis, and for whom, limits their use. Methods: We analyzed agreement in prevalent and incident dementia based on cognitive assessment from the Health and Retirement Study for persons with linked Medicare claims from 2000 to 2008 (N = 10,450 persons). Multinomial logistic regression identified sociodemographic factors associated with disagreement. Results: Survey-based cognitive tests and claims-based dementia diagnosis yielded equal prevalence estimates, yet only half were identified by both measures. Race and education were associated with disagreement. Eighty-five percent of respondents with incident dementia measured by cognitive decline received a diagnosis or died within the study period, with lower odds among blacks and Hispanics than among whites. Discussions: Claims data are valuable for tracking dementia in the US population and improve over time. Delayed diagnosis may underestimate rates within black and Hispanic populations. |
DOI | 10.1016/j.trci.2019.04.003 |
User Guide Notes | |
Alternate Journal | Alzheimers Dement (N Y) |
Citation Key | 10150 |
PubMed ID | 31198838 |
PubMed Central ID | PMC6556828 |
Grant List | P30 AG024968 / AG / NIA NIH HHS / United States P30 AG043073 / AG / NIA NIH HHS / United States R01 AG055401 / AG / NIA NIH HHS / United States |