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The AusD Study: A Population-based Study of the Determinants of Serum 25-Hydroxyvitamin D Concentration Across a Broad Latitude Range


Brodie, AM and Lucas, RM and Harrison, SL and van der Mei, IAF and Armstrong, B and Kricker, A and Mason, RS and McMichael, AJ and Nowak, M and Whiteman, DC and Kimlin, MG, The AusD Study: A Population-based Study of the Determinants of Serum 25-Hydroxyvitamin D Concentration Across a Broad Latitude Range, American Journal of Epidemiology, 177, (9) pp. 894-903. ISSN 0002-9262 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 The Authors

DOI: doi:10.1093/aje/kws322


Observational studies suggest that people with a high serum 25-hydroxyvitamin D (25(OH)D) concentration may have reduced risk of chronic diseases such as osteoporosis, multiple sclerosis, type 1 diabetes, cardiovascular disease, and some cancers. The AusD Study (A Quantitative Assessment of Solar UV Exposure for Vitamin D Synthesis in Australian Adults) was conducted to clarify the relationships between ultraviolet (UV) radiation exposure, dietary intake of vitamin D, and serum 25(OH)D concentration among Australian adults residing in Townsville (19.3S), Brisbane (27.5S), Canberra (35.3S), and Hobart (42.8S). Participants aged 18-75 years were recruited from the Australian Electoral Roll between 2009 and 2010. Measurements were made of height, weight, waist:hip ratio, skin, hair, and eye color, blood pressure, and grip strength. Participants completed a questionnaire on sun exposure and vitamin D intake, together with 10 days of personal UV dosimetry and an associated sun-exposure and physical-activity diary that was temporally linked to a blood test for measurement of 25(OH)D concentration. Ambient solar UV radiation was also monitored at all study sites. We collected comprehensive, high-quality data from 1,002 participants (459 males, 543 females) assessed simultaneously across a range of latitudes and through all seasons. Here we describe the scientific and methodological issues considered in designing the AusD Study.

Item Details

Item Type:Refereed Article
Keywords:sunlight, ultraviolet radiation, vitamin D
Research Division:Health Sciences
Research Group:Epidemiology
Research Field:Epidemiology not elsewhere classified
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:van der Mei, IAF (Professor Ingrid van der Mei)
ID Code:84746
Year Published:2013
Web of Science® Times Cited:21
Deposited By:Menzies Institute for Medical Research
Deposited On:2013-05-30
Last Modified:2014-04-17

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