Serum vitamin D levels in office workers in a subtropical climate

Vu, Lan Huong, Whiteman, David C., van der Pols, Jolieke C., Kimlin, Michael, & Neale, Rachel (2011) Serum vitamin D levels in office workers in a subtropical climate. Photochemistry and Photobiology, 87(3), pp. 714-720.

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Vitamin D is necessary to maintain healthy bones, and may prevent other chronic diseases. There is limited information regarding the vitamin D status of people living in climates with relatively high ambient ultraviolet radiation. We therefore aimed to determine serum 25(OH)D levels in a group of office-workers in subtropical Australia. We collected blood from 129 office workers in summer (n = 129) and 175 in winter (91 in both seasons). Serum 25(OH)D was estimated using a commercial chemiluminescent immunoassay and we asked participants to complete questionnaires about sun exposure and diet for the month prior to blood collection. Summer and winter mean serum 25(OH)D was 74 (95% CI 70-77) nmol L(-1) and 54 (95% CI 51-57) nmol L(-1), respectively. In summer, 14% of participants were classed as "insufficient," compared with 51% in winter. High 25(OH)D levels in summer were associated with time spent outdoors in nonpeak UV periods, while in winter high levels were associated with intake of vitamin D from food or supplements. The high prevalence of vitamin D insufficiency observed in this population highlights the need for further examination of the relation between sunlight and vitamin D production to enable more accurate sun exposure recommendations.

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15 citations in Scopus
15 citations in Web of Science®
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ID Code: 52095
Item Type: Journal Article
Refereed: Yes
Keywords: Vitamin D, Ultraviolet, Occupational
DOI: 10.1111/j.1751-1097.2011.00899.x
ISSN: 0031-8655
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > MEDICINAL AND BIOMOLECULAR CHEMISTRY (030400)
Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > BIOCHEMISTRY AND CELL BIOLOGY (060100)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700) > Public Health and Health Services not elsewhere classified (111799)
Divisions: Current > Research Centres > Centre for Health Research
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Exercise & Nutrition Sciences
Deposited On: 19 Jul 2012 06:27
Last Modified: 28 Apr 2017 04:51

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