Observational studyAlzheimer's & dementia : the journal of the Alzheimer's Association2024
Regional variation in diagnostic intensity of dementia among older U.S. adults: An observational study.
Observational study in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Undiagnosed dementia and mortality among older adults in the United States and Brazil: A cross-national cohort study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Cognability across adulthood: A qualitative investigation of neighborhoods and cognitive health behaviors.Social science & medicine (1982) · 2026Article
- Falls and Fractures Among Medicare Beneficiaries Concurrently Receiving Anti-Dementia Drugs and Potentially Risky Medications.Medical care · 2025Article
- Underdetection of neurocognitive disorders in Southern Italy: Evidence from the Salento region.The journal of prevention of Alzheimer's disease · 2025Article
- Regional Differences in Dementia Incidence Among US Veterans.JAMA neurology · 2025Article
- Dementia Deaths Most Commonly Result from Heart and Lung Disease: Evidence from the South Carolina Alzheimer's Disease Registry.Biomedicines · 2025Article
- Red blood cell distribution width to albumin ratio (RAR) is associated with low cognitive performance in American older adults: NHANES 2011-2014.BMC geriatrics · 2025Article
- Primary care preparedness to care for patients with ADRD: A national survey study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Unraveling the clinical-pathological correlations of subjects with isolated and mixed neurodegenerative processes in the National Alzheimer's Coordinating Center dataset.Journal of neuropathology and experimental neurology · 2025Article
- Regional differences in the incidence of Alzheimer's disease and related dementias in South Carolina.Frontiers in neurology · 2025Article
- Regional variation in diagnostic intensity of dementia among older US adults: An observational study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- Regional variation in diagnostic intensity of dementia among older U.S. adults: An observational study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Observational
- Longitudinal Assessment of Age-Related Macular Degeneration and Risk of Dementia Using Clinical Setting Data.Ophthalmology scienceArticle
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
introductionGeographic variation in diagnosed cases of Alzheimer's disease and related dementias (ADRD) could be due to underlying population risk or differences in intensity of new case identification. Areas with low ADRD diagnostic intensity could be targeted for additional surveillance efforts.
methodsMedicare claims were used for a cohort of older adults across hospital referral regions (HRRs). ADRD-specific regional diagnosis intensity was measured as the ratio of expected new ADRD cases (estimated using population demographics, risk factors, and practice intensity) compared to observed ADRD-diagnosed cases.
resultsCrude new ADRD diagnosis rate ranged from 1.7 to 5.4 per 100 across HRRs. ADRD-specific diagnosis intensity ranged from 0.69 to 1.47 and varied most for Black, Hispanic, and the youngest (66-74) subgroups. Across all subgroups, ADRD diagnosis intensity was associated with 2-fold difference in receiving an ADRD diagnosis. DISCUSSION: Where one resides influences the likelihood of receiving an ADRD diagnosis, particularly among those 66-74 years of age and minoritized groups. HIGHLIGHTS: Rate of new Alzheimer's disease and related dementias (ADRD) case identification varies geographically across the United States. Variation in case identification is greatest in Black, Hispanic, and young-old groups. Intensity of diagnosis (ie, case identification) unrelated to population risk differs across place. Likelihood of receiving an ADRD diagnosis varies 2-fold based on place of residence.
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