Investigating the patterns and determinants of seasonal variation in vitamin D status in Australian adults: the Seasonal D Cohort Study
King, Laura, Dear, Keith, Harrison, Simone L., Van der Mei, Ingrid, Brodie, Alison M., Kimlin, Michael G., and Lucas, Robyn M. (2016) Investigating the patterns and determinants of seasonal variation in vitamin D status in Australian adults: the Seasonal D Cohort Study. BMC Public Health, 16. 892. pp. 1-6.
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Abstract
Background: Vitamin D status generally varies seasonally with changing solar UVB radiation, time in the sun, amount of skin exposed, and, possibly, diet. The Seasonal D Study was designed to quantify the amplitude and phase of seasonal variation in the serum concentration of 25-hydroxyvitamin D, (25OH)D)) and identify the determinants of the amplitude and phase and those of inter-individual variability in seasonal pattern.
Methods: The Seasonal D Study collected data 2-monthly for 12 months, including demographics, personal sun exposure using a diary and polysulphone dosimeters over 7 days, and blood for serum 25(OH)D concentration. The study recruited 333 adults aged 18-79 years living in Canberra (35 degrees S, n = 168) and Brisbane (27 degrees South, n = 165), Australia.
Discussion: We report the study design and cohort description for the Seasonal D Study. The study has collected a wealth of data to examine inter- and intra-individual seasonal variation in vitamin D status and serum 25(OH)D levels in Australian adults.
| Item ID: | 45946 |
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| Item Type: | Article (Research - C1) |
| ISSN: | 1471-2458 |
| Keywords: | vitamin D, cohort, season, Australia, adult, determinants |
| Additional Information: | © 2016 The Author(s). Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
| Funders: | National Health and Medical Research Council (NHMRC) |
| Projects and Grants: | NHMRC #1023987 |
| Date Deposited: | 05 Oct 2016 07:32 |
| FoR Codes: | 42 HEALTH SCIENCES > 4206 Public health > 420699 Public health not elsewhere classified @ 100% |
| SEO Codes: | 92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920408 Health Status (e.g. Indicators of Well-Being) @ 50% 92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920401 Behaviour and Health @ 50% |
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