Observational studyDeutsches Arzteblatt international2025
Decline in Incidence and Prevalence of Dementia: An Analysis of Outpatient Claims Data.
Observational study in Deutsches Arzteblatt international, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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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.
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Who cites it
6 citing papers in PubMed.
- [Cognitive aging, dementia and need for care : Contributions of cognitive psychology to an integrative assistance for old persons].Zeitschrift fur Gerontologie und Geriatrie · 2026Review
- (Alzheimer's) dementia in adults with Down syndrome in Germany: Administrative prevalence based on a claims data analysis.Journal of Alzheimer's disease : JAD · 2026Article
- Forecast of dementia prevalence in Germany and subnational regions until 2060 using microsimulation.European journal of epidemiology · 2026Article
- In Reply.Deutsches Arzteblatt international · 2025Article
- Surprising Results.Deutsches Arzteblatt international · 2025Article
- A Surprising Decline in the Incidence of Dementia.Deutsches Arzteblatt international · 2025Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAn increase in dementia is expected worldwide because of the aging of the population. However, recent studies suggest that its incidence is declining.
methodsClaims data from the German statutory health insurance system (covering 88% of the population) were analyzed for the years 2015 to 2022. Insurees aged 65 and older were included for whom a confirmed diagnosis of dementia was documented in at least two of four consecutive quarters. The incidence and prevalence of dementia were calculated and standardized by age and sex.
resultsThe incidence of dementia declined by 26% percent (95% confidence interval: -26.2; -25.3), from 2020 per 100 000 insured individuals in 2015 to 1500 per 100 000 in 2022. Over the same period, its prevalence fell by 18% [-18.6; -18.2], from 10 380 to 8470 per 100 000 insured individuals. These trends were more pronounced in younger age groups and in women and were particularly evident in primary care practices. The number of individuals with a documented diagnosis of dementia fell from 1.56 million in 2015 to 1.43 million in 2022, corresponding to a decline by 8.4% [-8.5; -8.3]. Over the same period, the number of people with a diagnosis of mild cognitive impairment (MCI) increased by 62%, albeit from a very low initial level.
conclusionDespite the aging of the population, the incidence and prevalence of diagnosed dementia in German primary care practices are declining. Further analysis is needed to determine whether this is due to a lower individual risk of dementia, changes in diagnostic behavior, or structural factors, such as a shift to specialized memory clinics.
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