<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jennifer S Buell</style></author><author><style face="normal" font="default" size="100%">Tammy M Scott</style></author><author><style face="normal" font="default" size="100%">Bess {Dawson-Hughes}</style></author><author><style face="normal" font="default" size="100%">Gerard E Dallal</style></author><author><style face="normal" font="default" size="100%">Irwin H Rosenberg</style></author><author><style face="normal" font="default" size="100%">Marshal F Folstein</style></author><author><style face="normal" font="default" size="100%">Katherine L Tucker</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Vitamin D is associated with cognitive function in elders receiving home health services</style></title><secondary-title><style face="normal" font="default" size="100%">The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">80 and over</style></keyword><keyword><style  face="normal" font="default" size="100%">Aged</style></keyword><keyword><style  face="normal" font="default" size="100%">Cognition</style></keyword><keyword><style  face="normal" font="default" size="100%">Female</style></keyword><keyword><style  face="normal" font="default" size="100%">Health Services</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Male</style></keyword><keyword><style  face="normal" font="default" size="100%">Neuropsychological Tests</style></keyword><keyword><style  face="normal" font="default" size="100%">Principal Component Analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Vitamin D</style></keyword><keyword><style  face="normal" font="default" size="100%">Vitamin D Deficiency</style></keyword><keyword><style  face="normal" font="default" size="100%">{Cross-Sectional} Studies</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">08/2009</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/19377013</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">8</style></number><volume><style face="normal" font="default" size="100%">64</style></volume><pages><style face="normal" font="default" size="100%">888–895</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The objective of this study was to examine the association between 25-hydroxyvitamin D, {25(OH)D,} and cognitive function.

A cross-sectional investigation of {25(OH)D} and cognition was completed in 377 black and 703 non-black (mainly Caucasian) elders (65-99 years) participating in the nutrition and memory in elders study. Participants underwent a comprehensive neuropsychological battery, and {25(OH)D} concentrations were obtained.

More than 65% of elders had suboptimal {25(OH)D} concentrations (&amp;lt; or =20 {ng/mL} or &amp;lt; or =50 {nmol/L).} Approximately 18% were deficient in {25(OH)D} (&amp;lt;10 {ng/mL} or &amp;lt;25 {nmol/L).} After adjusting for age, sex, race, body mass index, education, center, kidney function, seasonality, physical activity, and alcohol use, {25(OH)D} was associated with better performance on trails A (beta = -0.49, p &amp;lt; .03), trails B (beta = -0.73, p &amp;lt; .02), digit symbol (beta = 0.19, p &amp;lt; .001), matrix reasoning (beta = 0.04, p &amp;lt; .02), and block design (beta = 0.07, p &amp;lt; .04) tests. Associations remained after adjustment for homocysteine, {apoE4} allele, plasma B vitamins, and multivitamin use (y/n). {25(OH)D} concentrations &amp;gt;20 {ng/mL} were associated with better performance on tests of executive function, including trails A (80.5 vs 95, p &amp;lt; .05), trails B (205s vs 226s, p &amp;lt; .05), matrix reasoning (7.8 vs 7.0</style></abstract><notes><style face="normal" font="default" size="100%">{PMID:} 19377013</style></notes></record></records></xml>