Association of vitamin D deficiency with cognitive impairment in older women
- 5 January 2010
- journal article
- Published by Ovid Technologies (Wolters Kluwer Health) in Neurology
- Vol. 74 (1), 27-32
- https://doi.org/10.1212/wnl.0b013e3181beecd3
Abstract
Objective: The association between low serum 25-hydroxyvitamin D [25(OH)D] concentration and cognitive decline has been investigated by only a few studies, with mixed results. The objective of this cross-sectional population-based study was to examine the association between serum 25(OH)D deficiency and cognitive impairment while taking confounders into account. Methods: The subjects, 752 women aged ≥75 years from the Epidémiologie de l'Ostéoporose (EPIDOS) cohort, were divided into 2 groups according to serum 25(OH)D concentrations (either deficient, Results: Compared with women with serum 25(OH)D concentrations ≥10 ng/mL (n = 623), the women with 25(OH)D deficiency (n = 129) had a lower mean SPMSQ score (p < 0.001) and more often had an SPMSQ score p = 0.006). There was no significant linear association between serum 25(OH)D concentration and SPMSQ score (β = −0.003, 95% confidence interval −0.012 to 0.006, p = 0.512). However, serum 25(OH)D deficiency was associated with cognitive impairment (crude odds ratio [OR] = 2.08 with p = 0.007; adjusted OR = 1.99 with p = 0.017 for full model; and adjusted OR = 2.03 with p = 0.012 for stepwise backward model). Conclusions: 25-Hydroxyvitamin D deficiency was associated with cognitive impairment in this cohort of community-dwelling older women.Keywords
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