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dc.contributor.authorStephan, Blossom C. M.
dc.date.accessioned2022-08-02T10:53:56Z
dc.date.available2022-08-02T10:53:56Z
dc.date.issued2022
dc.identifier.citationStephan, B. C. M., Tang, E. Y. H., Pakpahan, E., Biswas, B., Gupta, A., McGrattan, A., Bosco, A., Richardson, C. D., Robinson, L. & Siervo, M. (2022). Secular trends in dementia free cognitive function in older adults: A systematic review. Journal of Alzheimer's Disease, 88(2), pp.417-428.en_US
dc.identifier.other10.3233/JAD-220162
dc.identifier.urihttp://hdl.handle.net/20.500.12904/15677
dc.description.abstractBACKGROUNDAlthough numerous studies have reported a decrease in dementia risk in the last two decades, it is unclear whether dementia-free cognitive function is also changing across generations.OBJECTIVEThe objective was to systematically evaluate the published data on generational differences in cognitive function in the older population.METHODSSearches were performed on PubMed, Embase, and PsychInfo for articles published in English before 20 June 2021. Included studies were from population-based samples that reported generational differences in cognition in individuals without dementia, aged ≥60 years.RESULTS28,101 studies were identified and 15 selected covering the period from 1971 to 2015: including studies from China, Europe, and the USA. The results show generally consistent findings of improvements or stability in dementia free cognitive function in later versus earlier born generations, but not for all cognitive domains. Prevalence of mild cognitive impairment and cognitive impairment no dementia has remained stable in the USA, UK, and China over the last two decades.RESULTSPrevalence of vascular related mild cognitive impairment has increased in China. Improvements in cognition may only partially be explained by increased educational attainment across generations.CONCLUSIONThis review provides evidence for generational effects in dementia-free cognitive function, predominately stability or improvements in performance, in later compared to earlier born individuals across different world regions. There is an urgent need to determine the factors driving such changes and whether they are being experienced in all world regions, particularly low- and middle-income countries where the burden of cognitive impairment is greatest and rising.
dc.description.urihttps://content.iospress.com/articles/journal-of-alzheimers-disease/jad220162en_US
dc.language.isoenen_US
dc.subjectEpidemiologyen_US
dc.subjectCognitionen_US
dc.subjectDementiaen_US
dc.subjectAgingen_US
dc.titleSecular trends in dementia free cognitive function in older adults: A systematic reviewen_US
dc.typeArticleen_US
rioxxterms.funderDefault funderen_US
rioxxterms.identifier.projectDefault projecten_US
rioxxterms.versionNAen_US
rioxxterms.typeJournal Article/Reviewen_US
refterms.panelUnspecifieden_US
refterms.dateFirstOnline2022-07-19
html.description.abstractBACKGROUNDAlthough numerous studies have reported a decrease in dementia risk in the last two decades, it is unclear whether dementia-free cognitive function is also changing across generations.OBJECTIVEThe objective was to systematically evaluate the published data on generational differences in cognitive function in the older population.METHODSSearches were performed on PubMed, Embase, and PsychInfo for articles published in English before 20 June 2021. Included studies were from population-based samples that reported generational differences in cognition in individuals without dementia, aged ≥60 years.RESULTS28,101 studies were identified and 15 selected covering the period from 1971 to 2015: including studies from China, Europe, and the USA. The results show generally consistent findings of improvements or stability in dementia free cognitive function in later versus earlier born generations, but not for all cognitive domains. Prevalence of mild cognitive impairment and cognitive impairment no dementia has remained stable in the USA, UK, and China over the last two decades.RESULTSPrevalence of vascular related mild cognitive impairment has increased in China. Improvements in cognition may only partially be explained by increased educational attainment across generations.CONCLUSIONThis review provides evidence for generational effects in dementia-free cognitive function, predominately stability or improvements in performance, in later compared to earlier born individuals across different world regions. There is an urgent need to determine the factors driving such changes and whether they are being experienced in all world regions, particularly low- and middle-income countries where the burden of cognitive impairment is greatest and rising.en_US
rioxxterms.funder.project94a427429a5bcfef7dd04c33360d80cden_US


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