Serum 25-Hydroxyvitamin D Concentration and Risk for Major Clinical Disease Events in a Community-Based Population of Older Adults

Abstract
Although low vitamin D levels are associated with a variety of diseases, the optimal levels are uncertain. This study followed 1621 white, elderly people to examine the relationship of 25-hydroxyvi... Background: Circulating concentrations of 25-hydroxyvitamin D [25-(OH)D] are used to define vitamin D deficiency. Current clinical 25-(OH)D targets based on associations with intermediate markers o...