Sun exposure over a lifetime in Australian adults from latitudinally diverse regions

Lucas, Robyn M., Valery, Patricia, van der Mei, Ingrid, Dwyer, Terence, Pender, Michael P., Taylor, Bruce, Ponsonby, Anne-Louise and The Ausimmune Investigator Group (2013) Sun exposure over a lifetime in Australian adults from latitudinally diverse regions. Photochemistry and Photobiology, 89 3: 737-744. doi:10.1111/php.12044

Author Lucas, Robyn M.
Valery, Patricia
van der Mei, Ingrid
Dwyer, Terence
Pender, Michael P.
Taylor, Bruce
Ponsonby, Anne-Louise
The Ausimmune Investigator Group
Title Sun exposure over a lifetime in Australian adults from latitudinally diverse regions
Journal name Photochemistry and Photobiology   Check publisher's open access policy
ISSN 0031-8655
Publication date 2013-05-01
Year available 2013
Sub-type Article (original research)
DOI 10.1111/php.12044
Open Access Status
Volume 89
Issue 3
Start page 737
End page 744
Total pages 8
Place of publication Hoboken, NJ, United States
Publisher Wiley-Blackwell
Language eng
Abstract Spatio-temporal patterns in sun exposure underlie variations in skin cancer incidence and vitamin D deficiency, indicate effectiveness of sun protection programs and provide insights into future health risks. From 558 adults across four regions of Australia (Brisbane (27°S), Newcastle (33°S), Geelong and the Western Districts of Victoria (37°S) and Tasmania (43°S)), we collected: self-report data on time-in-the-sun from age 6 years; natural skin color and ethnicity; silicone skin casts (for cumulative skin damage); and serum for vitamin D status. Ambient ultraviolet radiation (UVR) at the location of residence, with time-in-the-sun, was used to calculate a “UVR dose” for each year of life. Individuals maintained their ranking compared to their peers for time-in-the-sun in summer compared to winter and across ages (Spearman rho 0.24–0.84, all P < 0.001). Time-in-the-sun decreased with age in all birth cohorts, and over calendar time. Summer time-in-the-sun increased with increasing latitude (P < 0.001). Seasonal variation in vitamin D status had greater amplitude and vitamin D deficiency increased with increasing latitude. Temporal patterns are consistent with effectiveness of sun protection programs. Higher relative time-in-the-sun persists from childhood through adulthood. Lower summer time-in-the-sun in the warmest location may have implications for predictions of UVR-related health risks of climate change.
Keyword Vitamin-D status
Multiple clerosis
Skin cancer
25-Hydroxyvitamin D
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published May/June 2013.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Medicine Publications
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