Nevus count associations with pigmentary phenotype, histopathological melanoma characteristics and survival from melanoma

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• 作者：Nicholas J. Taylor ; Nancy E. Thomas ; Hoda Anton-Culver ; Bruce K. Armstrong ; Colin B. Begg ; Klaus J. Busam ; Anne E. Cust ; Terence Dwyer ; Lynn From ; Richard P. Gallagher ; Stephen B. Gruber ; Diane E. Nishri ; Irene Orlow ; Stefano Rosso ; Alison J. Venn ; Roberto Zanetti ; Marianne Berwick ; Peter A. Kanetsky and on behalf of the GEM Study Group
• 刊名：International Journal of Cancer
• 出版年：2016
• 出版时间：15 September 2016
• 年：2016
• 卷：139
• 期：6
• 页码：1217-1222
• 全文大小：187K
• ISSN：1097-0215

文摘

Although nevus count is an established risk factor for melanoma, relationships between nevus number and patient and tumor characteristics have not been well studied and the influence of nevus count on melanoma-specific survival is equivocal. Using data from the Genes, Environment and Melanoma (GEM) study, a large population-based study of primary cutaneous melanoma, we evaluated associations between number of nevi and patient features, including sun-sensitivity summarized in a phenotypic index, and tumor characteristics. We also assessed the association of nevus count with melanoma-specific survival. Higher nevus counts were independently and positively associated with male gender and younger age at diagnosis, and they were inversely associated with lentigo maligna histology. We observed a borderline significant trend of poorer melanoma-specific survival with increasing quartile of nevus count, but little or no association between number of nevi and pigmentary phenotypic characteristics or prognostic tumor features.