Germ Cell Testicular Cancer Incidence, Latitude and Sunlight Associations in the United States and Australia

Robert J Biggar; Peter D Baade; Jiandong Sun; Lindsay E Brandon; Michael G Kimlin

doi:10.1111/php.12617

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Germ Cell Testicular Cancer Incidence, Latitude and Sunlight Associations in the United States and Australia

Journal article

Open access

Peer reviewed

Germ Cell Testicular Cancer Incidence, Latitude and Sunlight Associations in the United States and Australia

Robert J Biggar, Peter D Baade, Jiandong Sun, Lindsay E Brandon and Michael G Kimlin

Photochemistry and Photobiology, Vol.92(5), pp.735-741

2016

DOI: https://doi.org/10.1111/php.12617

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Abstract

International patterns suggest germ cell testicular cancer (GCTC) incidence may be lower in lower latitudes. To investigate this possibility, we examined GCTC incidence by latitude (population-centroid in 2000) for men >15 years within two reasonably homogeneous countries, the United States (US) and Australia. In the US, we examined age-adjusted incidence/latitude trends using data from states (2001-2010) and local-area registries (1980-2011). In Australia, we evaluated incidence/latitude trends in 61 Statistical Divisions (2000-2009). In White US men (68,566 cases), state incidences increased by latitude, rising 5.74% (4.45-7.05%) per 5°North latitude increment. Similar trends were found for seminoma and non-seminoma subtypes (p<0.001). In Black US men (2,256 cases), the association was also seen (4.9%; 0.2 to 9.7%). In local US data, similar increases in incidence with latitude were present in each of the last three decades. In Australia (6,042 cases), the incidence increased by 4.43% (95% CI: 1.54-7.39%) per 5°South, and trends for subtypes were similar. Thus, we found that incidence of GCTC in both White and Black men increased significantly with distance from the equator, approximately 1% per degree within the range of latitudes studied.

Details

Title: Germ Cell Testicular Cancer Incidence, Latitude and Sunlight Associations in the United States and Australia
Authors: Robert J Biggar (Author) - Queensland University of Technology
Peter D Baade (Author) - Queensland University of Technology
Jiandong Sun (Author) - Queensland University of Technology
Lindsay E Brandon (Author) - Queensland University of Technology
Michael G Kimlin (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: Photochemistry and Photobiology, Vol.92(5), pp.735-741
Publisher: Wiley-Blackwell Publishing Inc.
Date published: 2016
DOI: 10.1111/php.12617
ISSN: 0031-8655
Copyright note: Copyright © 2016 Wiley-Blackwell Publishing Inc. This is the peer reviewed version of the following article: Biggar, R. J., Baade, P. D., Sun, J., Brandon, L. E. and Kimlin, M. (2016), Germ Cell Testicular Cancer Incidence, Latitude and Sunlight Associations in the United States and Australia. Photochem Photobiol, 92: 735-741. doi:10.1111/php.12617, which has been published in final form at http://dx.doi.org/10.1111/php.12617. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99450476602621
Output Type: Journal article

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Web Of Science research areas: Biochemistry & Molecular Biology; Biophysics

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