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dc.contributor.authorKhosravi-Boroujeni, Hossein
dc.contributor.authorSarrafzadegan, Nizal
dc.contributor.authorSadeghi, Masoumeh
dc.contributor.authorRoohafza, Hamidreza
dc.contributor.authorNg, Shu-Kay
dc.contributor.authorPourmogaddas, Ali
dc.contributor.authorAhmed, Faruk
dc.date.accessioned2018-03-07T23:58:41Z
dc.date.available2018-03-07T23:58:41Z
dc.date.issued2017
dc.identifier.issn0301-4800
dc.identifier.doi10.3177/jnsv.63.284
dc.identifier.urihttp://hdl.handle.net/10072/370531
dc.description.abstractVitamin D deficiency/insufficiency is currently considered to be a re-emerging public health problem globally. This study was designed to determine the prevalence of vitamin D deficiency and insufficiency and to investigate its trend from 2001 to 2013 in a longitudinal study of Iranian adults. This study was part of a population-based, longitudinal ongoing study of Iranian healthy adults aged 35 y and older at baseline. Serum vitamin D level was assessed in a sub-sample of 370 subjects, who were apparently healthy at the time of recruitment in 2001 and were free from MetS, in three phases (2001, 2007 and 2013) during the 12-y study period. Adjusted prevalence and trend of vitamin D deficiency were calculated. Mean serum vitamin D levels increased over the time of the study (52.12, 54.27 and 62.28 nmol/L, respectively) and the prevalence of vitamin D deficiency decreased (30.5, 27.0 and 24.4, respectively). However, the prevalence of vitamin D insufficiency did not change over this time period. The risk of vitamin D deficiency decreased significantly in 2007 [OR: 0.73 (95% CI: 0.53, 0.99)] and 2013 [OR: 0.50 (95% CI: 0.36, 0.70)] compared to the baseline. The present study demonstrated some improvement in serum vitamin D levels, while the prevalence of vitamin D inadequacy was still high. Considering the possible health consequences of vitamin D deficiency, there is an urgent need for developing population-wide strategies, such as supplementation and fortification, to prevent or control vitamin D deficiency.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherCenter for Academic Publications Japan
dc.relation.ispartofpagefrom284
dc.relation.ispartofpageto290
dc.relation.ispartofissue5
dc.relation.ispartofjournalJournal of Nutritional Science and Vitaminology
dc.relation.ispartofvolume63
dc.subject.fieldofresearchNutrition and Dietetics not elsewhere classified
dc.subject.fieldofresearchNutrition and Dietetics
dc.subject.fieldofresearchcode111199
dc.subject.fieldofresearchcode1111
dc.titlePrevalence and Trends of Vitamin D Deficiency among Iranian Adults: A Longitudinal Study from 2001-2013
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Health, School of Medicine
gro.hasfulltextNo Full Text
gro.griffith.authorNg, Shu Kay Angus
gro.griffith.authorAhmed, Faruk
gro.griffith.authorKhosravi Boroujeni, Hossein


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