Nutrition UP 65 study: The association between 25(OH)D levels, frailty status and obesity indices in older adults database

This study database derives from Nutrition UP 65 study main database. The association between 25(OH)D levels, frailty status and obesity indices in older adults was evaluated. This database was prepared according to the recommendations of the following article: "Hrynaszkiewicz Iain, Norton Melissa L, VickersAndrew J, Altman Douglas G. Preparing raw clinical data for publication: guidance for journal editors, authors, and peer reviewers BMJ 2010; 340:c181".