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Global vitamin D status and determinants of hypovitaminosis D

Abstract

This review describes the vitamin D status in different regions of the world with the objective of understanding the scope of hypovitaminosis D and the factors related to its prevalence that may contribute to the pathogenesis of osteoporosis and fragility fractures. INTRODUCTION: Vitamin D status has been linked to the pathogenesis of hip fractures as well as other skeletal and non-skeletal disorders. The purpose of this review is to provide a global perspective of vitamin D status across different regions of the world and to identify the common and significant determinants of hypovitaminosis D. METHODS: Six regions of the world were reviewed-Asia, Europe, Middle East and Africa, Latin America, North America, and Oceania-through a survey of published literature. RESULTS: The definition of vitamin D insufficiency and deficiency, as well as assay methodology for 25-hydroxyvitamin D or 25(OH)D, vary between studies. However, serum 25(OH)D levels below 75 nmol/L are prevalent in every region studied whilst levels below 25 nmol/L are most common in regions such as South Asia and the Middle East. Older age, female sex, higher latitude, winter season, darker skin pigmentation, less sunlight exposure, dietary habits, and absence of vitamin D fortification are the main factors that are significantly associated with lower 25(OH)D levels. CONCLUSION: Reports from across the world indicate that hypovitaminosis D is widespread and is re-emerging as a major health problem globally.

Type Journal
ISBN 1433-2965 (Electronic)
Authors Mithal, A.; Wahl, D. A.; Bonjour, J. P.; Burckhardt, P.; Dawson-Hughes, B.; Eisman, J. A.; El-Hajj Fuleihan, G.; Josse, R. G.; Lips, P.; Morales-Torres, J.;
Garvan Authors Prof John Eisman
Publisher Name OSTEOPOROSIS INT
Published Date 2009-11-01 00:00:00
Published Volume 20
Published Issue 11
Published Pages 1807-20
URL http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=19543765
Status Published In-print
OpenAccess Link https://publications.gimr.garvan.org.au/download.php?10444_10663/09 Mithal OI.pdf