01924nas a2200349 4500000000100000008004100001100001600042700001200058700001300070700001700083700002000100700001400120700001700134700001500151700001300166700001200179700001300191700001200204700001200216700001500228700001400243700001200257700001400269700001400283245012600297250001500423300001200438490000800450050001600458520104900474020005101523 2016 d1 aKanetsky P.1 aDwyer T1 aOrlow I.1 aArmstrong B.1 aAnton-Culver H.1 aGruber S.1 aGallagher R.1 aZanetti R.1 aRosso S.1 aFrom L.1 aBusam K.1 aCust A.1 aBegg C.1 aBerwick M.1 aThomas N.1 aVenn A.1 aTaylor N.1 aNishri D.00aNevus count associations with pigmentary phenotype, histopathological melanoma characteristics and survival from melanoma a2016/04/23 a1217-220 v139 a[if]: 5.0853 a
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.
a1097-0215 (Electronic)