Sex differences in the association of cutaneous melanoma incidence rates and geographic ultraviolet light exposure - 18/04/17
Abstract |
Background |
Cutaneous melanoma (CM) incidence rates continue to increase, and the reasons are unknown. Previously, we reported a unique age-specific sex difference in melanoma that suggested additional causes other than solar ultraviolet (UV) radiation.
Objective |
This study attempted to understand whether and how UV radiation differentially impacts the CM incidence in men and women.
Methods |
CM data and daily UV index (UVI) from 31 cancer registries were collected for association analysis. A second dataset from 42 US states was used for validation.
Results |
There was no association between log-transformed female CM rates and levels of UVI, but there was a significant association between male rates and UVI and a significant association between overall rates and UVI. The 5-year age-specific rate–UVI association levels (represented by Pearson's coefficient ρ) increased with age in men, but age-specific ρ levels remained low and unchanged in women. The significant rate–UVI association in men and nonassociation in women was validated in a population of white residents of the United States.
Limitations |
Confounders, including temperature and latitude, are difficult to separate from UVI.
Conclusions |
Ambient UVI appears to be associated with melanoma incidence in males but not in females.
Le texte complet de cet article est disponible en PDF.Key words : age-standardized rates, gender difference, melanoma, UV index, UVI, sex
Abbreviations used : ASR, CI, NMSC, RR, UV, UVI
Plan
Supported by a National Institutes of Health/National Cancer Institute award (K07 CA160756) to Dr Lui-Smith, the Waltmar Foundation (to Drs Meyskens and Liu-Smith); and the Alan Hubbell Education Grant (Cal State Fullerton and University of California Irvine Chao Family Comprehensive Cancer Center Partnership for Cancer Health Disparities Research P20 CA174188 to Hubbell and subgrant to Drs Liu-Smith and McEligot). |
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Conflicts of interest: None declared. |
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Reprints not available from the authors. |
Vol 76 - N° 3
P. 499 - mars 2017 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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