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Abstract Title:

Vitamin D intake is associated with dementia risk in the Washington Heights-Inwood Columbia Aging Project (WHICAP).

Abstract Source:

Alzheimers Dement. 2020 Sep 13. Epub 2020 Sep 13. PMID: 32921000

Abstract Author(s):

Chen Zhao, Angeliki Tsapanou, Jennifer Manly, Nicole Schupf, Adam M Brickman, Yian Gu

Article Affiliation:

Chen Zhao

Abstract:

INTRODUCTION: Low vitamin D intake and low vitamin D circulating levels have been associated with increased risk for dementia. We aimed to examine the association between vitamin D intake and dementia in a multiethnic cohort.

METHODS: A longitudinal study of 1759 non-demented older (≥65 years) participants of the Washington Heights-Inwood Columbia Aging Project with follow-up visits and completed a food frequency questionnaire. Dementia was diagnosed by consensus using Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria. Cox hazard regression was performed.

RESULTS: During a mean follow-up of 5.8 years, 329 participants developed dementia. Participants with the highest tertile of vitamin D intake from food sources had decreased risk (hazard ratio [HR] 0.72, 95% confidence interval [CI] 0.54-0.97, P = .030) for dementia compared with those with the lowest tertile, adjusting for age, sex, race/ethnicity, education, apolipoprotein E (APOE)-ε4, physical activity, Mediterranean diet (MeDI) score, income, depression, hypertension, diabetes, cardiovascular disease, and smoking.

DISCUSSION: Higher vitamin D intake is associated with decreased risk of dementia in a multiethnic cohort.

Study Type : Human Study

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