May A. Beydoun|Sharmin Hossain|Marie Fanelli Kuczmarski|Hind A. Beydoun|Jose A Canas|Michele K. Evans|Alan B. Zonderman
Vitamin D Status and Intakes and Their Association With Cognitive Trajectory in a Longitudinal Study of Urban Adults
National Institute on Aging|National Institutes of Health|National Institute on Aging|National Institutes of Health|University of Delaware|Johns Hopkins University|Nemours Children's Clinic|National Institute on Aging|National Institutes of Health|National Institute on Aging|National Institutes of Health
serum 25hydroxyvitamin 25ohd dietary supplemental vitamin may influence cognitive outcomessex age racespecific associations vitamin status intake longitudinal change various cognitive domains examined large sample ethnically socioeconomically diverse us urban adultstwo prospective waves data healthy aging neighborhoods diversity across life span study usedadults baltimore maryland aged 30 64 years baseline n 1231 1803 followed mean standard deviation 464 093 years visit 1 occurred 2004 2009 visit 2 2009 2013 15 20 visits per participantcognitive performance assessed using 11 test scores covering domains global cognition attention learningmemory executive function visuospatialvisuoconstruction ability psychomotor speed languageverbal serum 25ohd vitamin intake use supplements containing vitamin key exposuresa consistent relationship found vitamin status overall supplemental intake older women black adults slower rate decline domain verbal fluency higher dietary intake vitamin linked slower rate decline verbal memory among younger women slower rate decline visual memoryvisuoconstructive abilities among white adults associations inconsistentvitamin status intakes inversely related domainspecific cognitive decline us urban adults