ArticleJournal of Alzheimer's disease : JAD2019
Evaluation of Medicare Claims Data as a Tool to Identify Dementia.
Article in Journal of Alzheimer's disease : JAD, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
80 citing papers in PubMed.
- Endophenotype-based in silico network medicine discovery combined with insurance record data mining identifies sildenafil as a candidate drug for Alzheimer's disease.Nature aging · 2021Trial
- A Doubly Robust Approach to Evaluating the Impact of Hospital Length of Stay on Post-Fracture Recovery in Older Adults With Cognitive Impairment.Statistics in medicine · 2026Article
- Associations of Individual- and Neighborhood-Level Factors with Racial and Ethnic Disparities in Timely Dementia Diagnosis.Journal of general internal medicine · 2026Observational
- Neighborhood Disadvantage and Dementia Risk Among Older Patients With Kidney Failure: Differences by Race/Ethnicity and Urbanicity.Kidney medicine · 2026Article
- Dementia in Advanced Kidney Disease by Race and Ethnicity and Neighborhood Factors.Kidney international reports · 2026Article
- Comparison of Claims-Based Algorithms for Dementia Identification: A Cross-Sectional Analysis of the National Health and Aging Trends Study (NHATS).Journal of the American Geriatrics Society · 2026Article
- Dementia Diagnosis Underreporting and Care Engagement and Planning Among Older Adults.JAMA network open · 2026Article
- Clinical outcomes after antipsychotic discontinuation in nursing home residents with dementia: a nationwide cohort study.Alzheimer's research & therapy · 2026Article
- Article
- Language Preference Is Associated with Goals-of-Care Communication and End-of-Life Care in Dementia.Journal of general internal medicine · 2026Article
- Integrating real-world data with gold-standard longitudinal clinical and genomic data to advance precision medicine for the Alzheimer's Disease Research Center Program and beyond: a proof-of-concept data platform.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Developing a novel algorithm to identify incident and prevalent dementia in Medicare claims-the ARIC Study.American journal of epidemiology · 2025Article
- RSV vaccination uptake among adults aged 60 years and older in the United States during the 2023-2025 vaccination seasons.Human vaccines & immunotherapeutics · 2025Article
- Neighborhood Deprivation and Days Spent at Home After Fall-Related Hip Fracture.JAMA network open · 2025Article
- Changes in Medicare's Chronic Condition Files and Disparities in Dementia Identification.Journal of the American Medical Directors Association · 2025Observational
- Pulling Back the Curtain on Hospital Dementia Detection: Validation of the Informant-Based Clinical Dementia Rating.Journal of the American Geriatrics Society · 2025Article
- Utilization Patterns and Clinical Factors Associated With Hospitalization in Early-Stage Dementia With Lewy Bodies.International journal of geriatric psychiatry · 2025Article
- Undocumented Dementia Diagnosis During Skilled Home Health Care: Prevalence and Associated Factors.Journal of the American Geriatrics Society · 2025Article
- Regional variability of the impact of cardiometabolic diseases on incident dementia in United States Medicare beneficiaries.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Racial and Ethnic Disparities in Accessing High-Quality Home Health Care among Older Adults with and Without Dementia.Journal of the American Medical Directors Association · 2025Article
20 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
backgroundMedicare claims record linkage has been used to identify diagnosed dementia cases in order to estimate dementia prevalence and cost of care. Claims records in the 1990 s and early 2000 s have been found to provide 85% - ∼90% sensitivity and specificity.
objectiveConsidering that dementia awareness has improved over time, we sought to examine sensitivity and specificity of more recent Medicare claims records against a standard criterion, clinical diagnosis of dementia.
methodsFor a sample of patients evaluated at the University of Southern California Alzheimer Disease Research Center (ADRC), we performed database linkage with Medicare claims files for a six-year period, 2007-2012. We used clinical diagnosis at the ADRC as the criterion diagnosis in order to calculate sensitivity and specificity.
resultsMedicare claims correctly identified 85% of dementia patients and 77% of individuals with normal cognition. About half of patients clinically diagnosed with mild cognitive impairment had dementia diagnoses in Medicare claims. Misclassified dementia patients (i.e., missed diagnosis by Medicare claims) had more favorable Mini-Mental State Examination and Clinical Dementia Rating scores and were less likely to present behavioral symptoms than correctly-classified dementia patients.
conclusionsDatabase linkage to Medicare claims records is an efficient and reasonably accurate tool to identify dementia cases in a population-based cohort. However, possibilities of obtaining biased results due to misclassification of dementia status need to be carefully considered to use Medicare claims diagnosis for etiologic research studies. Additional confirmation of dementia diagnosis may also be considered. A larger study is warranted to confirm our findings.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.