SUN-PP202: Usefulness of a Method Based on Analytical Parameters as Nutritional Risk Screening in HIV-Infected Patients

SUN-PP200 ANALYTICAL BIAS IN THE MEASUREMENT OF SERUM 25HYDROXYVITAMIN D CONCENTRATIONS IMPAIRS ASSESSMENT OF VITAMIN D STATUS L.J. Black1, D. Anderson1, M.W. Clarke2, A.-L. Ponsonby3, R.M. Lucas4. 1Telethon Kids Institute, 2Centre for Metabolomics, The University of Western Australia, Perth, 3Murdoch Childrens Research Institute, The University of Melbourne, Melbourne, 4National Centre for Epidemiology and Population Health, The Australian National University, Canberra, Australia