ArticleBMJ (Clinical research ed.)2025
Incidence and prevalence of dementia among US Medicare beneficiaries, 2015-21: population based study.
Article in BMJ (Clinical research ed.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
What it found
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Domain-specific physical activity levels and risk of dementia: a systematic review and meta-analysis.The Lancet. Public health · 2026Pooled it
- Identification of prevalent dementia in Medicare Advantage encounters, compared with rigorous cohort assessments.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026Article
- Aging with dual burdens: cross-national evidence on mortality among older Hispanic adults with diabetes and dementia.The journals of gerontology. Series B, Psychological sciences and social sciences · 2026Article
- Alzheimer neuropathological change, α-synuclein and transactive response DNA-binding protein of 43 kDa expression in children and young adult brains from forensic autopsies: Value for early measurement of abnormal protein expression prevalence in neurodegenerative diseases.Journal of neuropathology and experimental neurology · 2026Article
- A Scoping Review on Strategies for Navigating Conflicting Rights Between Safety and Autonomy in Residential Long-Term Care in the United States.Journal of the American Geriatrics Society · 2026Article
- Potential biases associated with reported parental history of dementia in the Alzheimer's Disease Research Center cohorts: Implications for secondary data analyses.Journal of Alzheimer's disease : JAD · 2026Article
- Genetic and environmental risk factors of Parkinsonism.Journal of neural transmission (Vienna, Austria : 1996) · 2026Review
- Hyperglycemia impairs cognitive function by inducing mitochondrial damage through lactylation of LRPPRC at K223.EMBO molecular medicine · 2026Article
- Examining the additive risk of TBI and comorbid conditions on dementia in military veterans: a retrospective cohort study.Alzheimer's research & therapy · 2026Article
- Association of impaired medication adherence with subsequent clinical recognition of dementia or cognitive impairment in older veterans.European geriatric medicine · 2026Article
- The association between midlife neighbourhood walkability and Alzheimer's disease in women: a prospective nested case-control study.Age and ageing · 2026Article
- The incidence of dementia in populations around the globe.Current opinion in psychiatry · 2026Review
- Trends in Dementia Incidence, Prevalence, and Mortality among Older Hong Kong Chinese, 2005-2019: A Population-Based Study.Neuroepidemiology · 2026Article
- Association between pre-diagnostic prevalence of 30 common diseases and the subsequent risk of dementia: a population-based retrospective cohort study in Taiwan.Frontiers in aging neuroscience · 2026Article
- Developing a novel algorithm to identify incident and prevalent dementia in Medicare claims-the ARIC Study.American journal of epidemiology · 2025Article
- Mortality and institutionalization of patients with dementia treated in primary care: influence of neuropsychiatric symptoms (NeDEM project).BMC geriatrics · 2025Observational
- Uptake and safety profile of anti-amyloid immunotherapies in routine clinical practice.Journal of Alzheimer's disease reportsArticle
Corrections and comments
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Authors and funding
15 authors.
Funding
Abstract
objectiveTo determine the incidence and prevalence of dementia in a nationally representative cohort of US Medicare beneficiaries, stratified by important subgroups.
designPopulation based study.
settingNationwide study between 2015 and 2021.
participantsFee-for-service Medicare beneficiaries aged 66 or older with at least one year of continuous enrollment.
main outcome measuresIncidence and prevalence of dementia, calculated as percentage per person years or percentage of beneficiaries respectively. These metrics were also calculated in key subgroups defined by age, sex, race/ethnicity, and neighborhood socioeconomic status.
resultsA total of 5 025 039 incident cases of dementia were documented from 2015 to 2021. The overall age and sex standardized incidence decreased between 2015 and 2021 from 3.5% to 2.8%. Prevalence increased during this time from 10.5% to 11.8%. Male beneficiaries had a higher age standardized incidence than did female beneficiaries in 2015 (3.5%
conclusionsThe incidence of dementia decreased from 2015 to 2021, but the prevalence increased. Disparities in these measures by race/ethnicity, sex, and neighborhood socioeconomic status should motivate future measures to promote health equity.
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