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- W4315464703 abstract "ABSTRACT: Introduction: Cognitive and functional impairment after stroke are common, but the relation between cognitive and functional decline after stroke is not well studied. Methods: We used the comprehensive cohort in the Canadian Longitudinal Study on Aging to identify those with prior stroke, and we calculated reliable cognitive change scores from baseline to follow-up for the memory and executive domains. Functional decline was defined as an increase in the number of dependent daily activities. Using formal mediation analysis, we tested the presence and degree of mediation of the association between stroke and functional decline by cognitive decline. Results: There were 22,648 individuals with memory change scores (325 with stroke) and 17,613 individuals with executive change scores (241 with stroke). History of stroke was significantly associated with memory decline (−0.26 standard deviations, 95% CI −0.33 to −0.19), executive decline (−0.22, 95% CI −0.36 to −0.09), and new functional impairment (adjusted odds ratio 2.31, 95% CI 1.80–2.97) over a median of 3-year follow-up. Cognitive decline was a significant mediator of functional decline. Memory decline mediated only 5% of the relationship, whereas executive and overall cognitive decline mediated 13% and 22%, respectively. Conclusion: Cognitive decline is a mediator of the association between prior stroke and functional decline; consequently, strategies to delay, attenuate, or prevent cognitive decline after stroke may be important to preserving long-term functional status." @default.
- W4315464703 created "2023-01-11" @default.
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- W4315464703 date "2023-01-11" @default.
- W4315464703 modified "2023-09-23" @default.
- W4315464703 title "Mediation of Post-Stroke Function by Cognition in the Canadian Longitudinal Study on Aging" @default.
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- W4315464703 doi "https://doi.org/10.1017/cjn.2023.6" @default.
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