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- W2965072009 abstract "Objective This study aimed to examine the association between normal-but-low folate levels and cognitive function in the elderly population using a prospective cohort study. Methods We analyzed 3,910 participants whose serum folate levels were within the normal reference range (1.5-16.9 ng/mL) at baseline evaluation in the population-based prospective cohort study named the âKorean Longitudinal Study on Cognitive Aging and Dementia.â The association between baseline folate quartile categories and baseline cognitive disorders [mild cognitive impairment (MCI) or dementia] was examined using binary logistic regression analysis adjusting for confounding variables. The risks of incident MCI and dementia associated with the decline of serum folate level during a 4-year follow-up period were examined using multinomial logistic regression analysis. Results The lowest quartile group of serum folate (â¥1.5, â¤5.9 ng/mL) showed a higher risk of cognitive disorders than did the highest quartile group at baseline evaluation (odds ratio 1.314, p=0.012). Over the 4 years of follow-up, the risk of incident dementia was 2.364 times higher among subjects whose serum folate levels declined from the 2nd-4th quartile group to the 1st quartile than among those for whom it did not (p=0.031). Conclusion Normal-but-low serum folate levels were associated with the risk of cognitive disorders in the elderly population, and a decline to normal-but-low serum folate levels was associated with incident dementia. Maintaining serum folate concentration above 5.9 ng/mL may be beneficial for cognitive status. Keywords: Folate, Elderly, Cognition, Dementia, Cohort studies, Longitudinal studies" @default.
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- W2965072009 date "2019-07-25" @default.
- W2965072009 modified "2023-09-29" @default.
- W2965072009 title "Normal-But-Low Serum Folate Levels and the Risks for Cognitive Impairment" @default.
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- W2965072009 doi "https://doi.org/10.30773/pi.2019.05.29" @default.
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