Volume 129, Issue 3 pp. 713-723
Epidemiology

Biologic markers of sun exposure and melanoma risk in women: Pooled case–control analysis

Catherine M. Olsen

Corresponding Author

Catherine M. Olsen

Cancer and Population Studies Group, Queensland Institute of Medical Research, Brisbane, Australia

C.M.O. and M.S.Z. have contributed equally to this work

Cancer and Population Studies group, Queensland Institute of Medical Research, Brisbane, AustraliaSearch for more papers by this author
Michael S. Zens

Michael S. Zens

Section of Biostatistics and Epidemiology, Department of Community and Family Medicine, Dartmouth Medical School, Hanover, NH

C.M.O. and M.S.Z. have contributed equally to this work

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Adele C. Green

Adele C. Green

Cancer and Population Studies Group, Queensland Institute of Medical Research, Brisbane, Australia

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Therese A. Stukel

Therese A. Stukel

Section of Biostatistics and Epidemiology, Department of Community and Family Medicine, Dartmouth Medical School, Hanover, NH

Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada

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C. D'Arcy J. Holman

C. D'Arcy J. Holman

School of Population Health, The University of Western Australia, Perth, WA, Australia

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Thomas Mack

Thomas Mack

Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA

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J. Mark Elwood

J. Mark Elwood

Cancer Control Research Program, British Columbia Cancer Agency, Vancouver, BC, Canada

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Elizabeth A. Holly

Elizabeth A. Holly

Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA

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Carlotta Sacerdote

Carlotta Sacerdote

Unit of Cancer Epidemiology, University of Turin, Torino, Italy

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Richard Gallagher

Richard Gallagher

Cancer Control Research Program, British Columbia Cancer Agency, Vancouver, BC, Canada

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Anthony J. Swerdlow

Anthony J. Swerdlow

Institute of Cancer Research, Section of Epidemiology, Sutton, Surrey, United Kingdom

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Bruce K. Armstrong

Bruce K. Armstrong

Sydney School of Public Health, University of Sydney, Sydney, NSW, Australia

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Stefano Rosso

Stefano Rosso

Piedmont Cancer Registry, CPO, Centre for Cancer Prevention, Torino, Italy

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Connie Kirkpatrick

Connie Kirkpatrick

Franciscan Health System, Tacoma, WA

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Roberto Zanetti

Roberto Zanetti

Piedmont Cancer Registry, CPO, Centre for Cancer Prevention, Torino, Italy

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Julia Newton Bishop

Julia Newton Bishop

Section of Epidemiology and Biostatistics, Leeds Institute of Molecular Medicine, Leeds, United Kingdom

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Veronique Bataille

Veronique Bataille

Twin Research and Genetic Epidemiology Unit, St Thomas' Campus, Kings College London, United Kingdom

Dermatology Department, West Herts NHS Trust, Hemel Hempstead General Hospital, Herts, United Kingdom

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Yu-Mei Chang

Yu-Mei Chang

Section of Epidemiology and Biostatistics, Leeds Institute of Molecular Medicine, Leeds, United Kingdom

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Rona Mackie

Rona Mackie

Department of Public Health and Health Policy, University of Glasgow, Glasgow, United Kingdom

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Anne Østerlind

Anne Østerlind

Kobenhausevej 25, DK 3400 Hillerød, Denmark

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Marianne Berwick

Marianne Berwick

Department of Internal Medicine, University of New Mexico, Albuquerque, NM

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Margaret R. Karagas

Margaret R. Karagas

Section of Biostatistics and Epidemiology, Department of Community and Family Medicine, Dartmouth Medical School, Hanover, NH

M.R.K. and D.C.W. are the senior authors of this work, have contributed equally to the manuscript.

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David C. Whiteman

David C. Whiteman

Cancer and Population Studies Group, Queensland Institute of Medical Research, Brisbane, Australia

M.R.K. and D.C.W. are the senior authors of this work, have contributed equally to the manuscript.

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First published: 20 September 2010
Citations: 25

Abstract

A model has been proposed whereby melanomas arise through two distinct pathways dependent on the relative influence of host susceptibility and sun exposure. Such pathways may explain site-specific patterns of melanoma occurrence. To explore this model, we investigated the relationship between melanoma risk and general markers of acute (recalled sunburns) and chronic (prevalent solar keratoses) sun exposure, stratified by anatomic site and host phenotype. Our working hypothesis was that head and neck melanomas have stronger associations with solar keratoses and weaker associations with sunburn than trunk melanomas. We conducted a collaborative analysis using original data from women subjects of 11 case–control studies of melanoma (2,575 cases, 3,241 controls). We adjusted for potential confounding effects of sunlamp use and sunbathing. The magnitude of sunburn associations did not differ significantly by melanoma site, nevus count or histologic subtype of melanoma. Across all sites, relative risk of melanoma increased with an increasing number of reported lifetime “painful” sunburns, lifetime “severe” sunburns and “severe” sunburns in youth (ptrend < 0.001), with pooled odds ratios (pORs) for the highest category of sunburns versus no sunburns of 3.22 [95% confidence interval (CI) 2.04–5.09] for lifetime “painful” sunburns, 2.10 (95%CI 1.30–3.38) for lifetime “severe” sunburns and 2.43 (95%CI 1.61–3.65) for “severe” sunburns in youth. Solar keratoses strongly increased the risk of head and neck melanoma (pOR 4.91, 95%CI 2.10–11.46), but data were insufficient to assess risk for other sites. Reported sunburn is strongly associated with melanoma on all major body sites.

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