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Sun Exposure and Melanoma Survival: A GEM Study.
MedLine Citation:
PMID:  25069694     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background We previously reported a significant association between higher ultraviolet radiation exposure before diagnosis and greater survival with melanoma in a population-based study in Connecticut. We sought to evaluate the hypothesis that sun exposure prior to diagnosis was associated with greater survival in a larger, international population-based study with more detailed exposure information. Methods We conducted a multi-center, international population-based study in four countries - Australia, Italy, Canada and the United States - with 3,578 cases of melanoma with an average of 7.4 years of follow-up. Measures of sun exposure included sunburn, intermittent exposure, hours of holiday sun exposure, hours of water-related outdoor activities, ambient UVB dose, histological solar elastosis and season of diagnosis. Results Results were not strongly supportive of the earlier hypothesis. Having had any sunburn in one year within 10 years of diagnosis was inversely associated with survival; solar elastosis - a measure of lifetime cumulative exposure - was not. Additionally, none of the intermittent exposure measures - water related activities and sunny holidays - were associated with melanoma-specific survival. Estimated ambient UVB dose was not associated with survival. Conclusion Although there was an apparent protective effect of sunburns within 10 years of diagnosis, there was only weak evidence in this large, international, population-based study of melanoma that sun exposure prior to diagnosis is associated with greater melanoma-specific survival. Impact This study adds to the evidence that sun exposure prior to melanoma diagnosis has little effect on survival with melanoma.
Authors:
Marianne Berwick; Anne S Reiner; Susan Paine; Bruce K Armstrong; Anne Kricker; Chris Goumas; Anne E Cust; Nancy E Thomas; Pamela A Groben; Lynn From; Klaus J Busam; Irene Orlow; Loraine D Marrett; Richard P Gallagher; Stephen B Gruber; Hoda Anton-Culver; Stefano Rosso; Roberto Zanetti; Peter A Kanetsky; Terence Dwyer; Alison J Venn; Julia Lee-Taylor; Colin B Begg
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-28
Journal Detail:
Title:  Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology     Volume:  -     ISSN:  1538-7755     ISO Abbreviation:  Cancer Epidemiol. Biomarkers Prev.     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9200608     Medline TA:  Cancer Epidemiol Biomarkers Prev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2014, American Association for Cancer Research.
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