Association between ambient ultraviolet radiation and risk of esophageal cancer

Tran, Bich, Lucas, Robyn, Kimlin, Michael G., Whiteman, David C., & Neale, Rachel E. (2012) Association between ambient ultraviolet radiation and risk of esophageal cancer. American Journal of Gastroenterology, 107(12), pp. 1803-1813.

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Abstract

OBJECTIVES: Ecological studies have suggested an inverse relationship between latitude and risks of some cancers. However, associations between solar ultraviolet radiation (UVR) exposure and esophageal cancer risk have not been fully explored. We therefore investigated the association between nevi, freckles, and measures of ambient UVR over the life-course with risks of esophageal cancers.

METHODS: We compared estimated lifetime residential ambient UVR among Australian patients with esophageal cancer (330 esophageal adenocarcinoma (EAC), 386 esophago-gastric junction adenocarcinoma (EGJAC), and 279 esophageal squamous cell carcinoma (ESCC)), and 1471 population controls. We asked people where they had lived at different periods of their life, and assigned ambient UVR to each location based on measurements from NASA's Total Ozone Mapping Spectrometer database. Freckling and nevus burden were self-reported. We used multivariable logistic regression models to estimate the magnitude of associations between phenotype, ambient UVR, and esophageal cancer risk.

RESULTS: Compared with population controls, patients with EAC and EGJAC were less likely to have high levels of estimated cumulative lifetime ambient UVR (EAC odds ratio (OR) 0.59, 95% confidence interval (CI) 0.35-0.99, EGJAC OR 0.55, 0.34-0.90). We found no association between UVR and risk of ESCC (OR 0.91, 0.51-1.64). The associations were independent of age, sex, body mass index, education, state of recruitment, frequency of reflux, smoking status, alcohol consumption, and H. pylori serostatus. Cases with EAC were also significantly less likely to report high levels of nevi than controls.

CONCLUSIONS: These data show an inverse association between ambient solar UVR at residential locations and risk of EAC and EGJAC, but not ESCC.

Impact and interest:

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ID Code: 56985
Item Type: Journal Article
Refereed: Yes
Keywords: SQUAMOUS-CELL CARCINOMA, NONMELANOMA SKIN-CANCER, BODY-MASS INDEX, VITAMIN-D, COLORECTAL-CANCER, SUN EXPOSURE, GASTRIC CARDIA, UNITED-STATES, ADENOCARCINOMA, METAANALYSIS
DOI: 10.1038/ajg.2012.329
ISSN: 1572-0241 (online) 0002-9270 (print)
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Public Health & Social Work
Copyright Owner: Copyright 2013 The American College of Gastroenterology
Deposited On: 04 Mar 2013 22:12
Last Modified: 12 Jun 2013 15:30

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