Twenty-year trends in cognitive performance and modifiable dementia risk factors: a Swiss population-based study.

Population trends in cognitive performance have been mixed, and few studies included data following the COVID-19 pandemic. We examined 20-year cognitive performance trends, and the contribution of modifiable dementia risk factors. We used repeated cross-sectional survey data from 2005 to 2025. Adult...

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Publicado en:European Journal of Public Health Vol. 36; no. 2; pp. 1 - 9
Autores principales: Schrempft, Stephanie, Chevalier, Claire, Antille, Delia, Dumont, Roxane, Guessous, Idris, Nehme, Mayssam
Formato: research tables/charts Journal Article
Publicado: Oxford University Press / USA Apr2026
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Apr2026
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      pub: Oxford University Press / USA
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        atl: Twenty-year trends in cognitive performance and modifiable dementia risk factors: a Swiss population-based study.
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        au:
          Schrempft, Stephanie
          Chevalier, Claire
          Antille, Delia
          Dumont, Roxane
          Guessous, Idris
          Nehme, Mayssam
        affil: Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
      sug:
        subj:
          Dementia Risk Factors
          Risk Assessment
          Cognition Evaluation
          Functional Status
          Population Health Trends
          Human
          Switzerland
          Male
          Female
          Middle Age
          Aged
          Cross Sectional Studies
          Neuropsychological Tests
          Scales
          Linear Regression
          Confidence Intervals
          Digital Technology
          Stratified Random Sample
          Hematologic Tests
          Questionnaires
          Logistic Regression
          Smoking
          Alcohol Drinking
          Physical Activity
          Diet
          Fatigue
          Data Analysis Software
          Funding Source
          Middle Aged: 45-64 years
          Aged: 65+ years
          Male
          Female
      ab: Population trends in cognitive performance have been mixed, and few studies included data following the COVID-19 pandemic. We examined 20-year cognitive performance trends, and the contribution of modifiable dementia risk factors. We used repeated cross-sectional survey data from 2005 to 2025. Adults aged 50 to 75 years completed the clock drawing test (N =  6902, 51% women). We calculated the updated LIfestyle for BRAin health (LIBRA2) index. Analyses used linear regression models. Cognitive performance declined over time [ β (95% CI), −0.11 (−0.14 to −0.09), P <.001]. Higher LIBRA2 scores were associated with poorer cognitive performance [−0.08 (−0.11 to −0.05), <.001]. The decline in cognitive performance remained significant after adjustment for the LIBRA2 and its components. There was a small but significant decline in cognitive performance between 2005 and 2025. Well-known dementia risk factors did not fully explain the decline. Further research is needed to identify contributing factors, including the impact of digitalisation on society.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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