Open Access

Sun exposure and melanoma prognostic factors

  • Authors:
    • Sara Gandini
    • Maurizio Montella
    • Fabrizio Ayala
    • Lucia Benedetto
    • Carlo Riccardo Rossi
    • Antonella Vecchiato
    • Maria Teresa Corradin
    • Vincenzo De Giorgi
    • Paola Queirolo
    • Guido Zannetti
    • Giuseppe Giudice
    • Giovanni Borroni
    • Rosachiara Forcignanò
    • Ketty Peris
    • Giulio Tosti
    • Alessandro Testori
    • Giusto Trevisan
    • Francesco Spagnolo
    • Paolo A. Ascierto
  • View Affiliations

  • Published online on: March 1, 2016     https://doi.org/10.3892/ol.2016.4292
  • Pages: 2706-2714
  • Copyright: © Gandini et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Previous studies have reported an association between sun exposure and the increased survival of patients with cutaneous melanoma (CM). The present study analyzed the association between ultraviolet (UV) light exposure and various prognostic factors in the Italian Clinical National Melanoma Registry. Clinical and sociodemographic features were collected, as well as information concerning sunbed exposure and holidays with sun exposure. Analyses were performed to investigate the association between exposure to UV and melanoma prognostic factors. Between December 2010 and December 2013, information was obtained on 2,738 melanoma patients from 38 geographically representative Italian sites. A total of 49% of the patients were >55 years old, 51% were men, 50% lived in the north of Italy and 57% possessed a high level of education (at least high school). A total of 8 patients had a family history of melanoma and 56% had a fair phenotype (Fitzpatrick skin type I or II). Of the total patients, 29% had been diagnosed with melanoma by a dermatologist; 29% of patients presented with a very thick melanoma (Breslow thickness, >2 mm) and 25% with an ulcerated melanoma. In total, 1% of patients had distant metastases and 13% exhibited lymph node involvement. Holidays with sun exposure 5 years prior to CM diagnosis were significantly associated with positive prognostic factors, including lower Breslow thickness (P<0.001) and absence of ulceration (P=0.009), following multiple adjustments for factors such as sociodemographic status, speciality of doctor performing the diagnosis and season of diagnosis. Sunbed exposure and sun exposure during peak hours of sunlight were not significantly associated with Breslow thickness and ulceration. Holidays with sun exposure were associated with favorable CM prognostic factors, whereas no association was identified between sunbed use and sun exposure during peak hours of sunlight with favorable CM prognostic factors. However, the results of the present study do not prove a direct causal effect of sun exposure on melanoma prognosis, as additional confounding factors, including vitamin D serum levels, may have a role.
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April-2016
Volume 11 Issue 4

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Gandini S, Montella M, Ayala F, Benedetto L, Rossi CR, Vecchiato A, Corradin MT, De Giorgi V, Queirolo P, Zannetti G, Zannetti G, et al: Sun exposure and melanoma prognostic factors. Oncol Lett 11: 2706-2714, 2016.
APA
Gandini, S., Montella, M., Ayala, F., Benedetto, L., Rossi, C.R., Vecchiato, A. ... Ascierto, P.A. (2016). Sun exposure and melanoma prognostic factors. Oncology Letters, 11, 2706-2714. https://doi.org/10.3892/ol.2016.4292
MLA
Gandini, S., Montella, M., Ayala, F., Benedetto, L., Rossi, C. R., Vecchiato, A., Corradin, M. T., De Giorgi, V., Queirolo, P., Zannetti, G., Giudice, G., Borroni, G., Forcignanò, R., Peris, K., Tosti, G., Testori, A., Trevisan, G., Spagnolo, F., Ascierto, P. A."Sun exposure and melanoma prognostic factors". Oncology Letters 11.4 (2016): 2706-2714.
Chicago
Gandini, S., Montella, M., Ayala, F., Benedetto, L., Rossi, C. R., Vecchiato, A., Corradin, M. T., De Giorgi, V., Queirolo, P., Zannetti, G., Giudice, G., Borroni, G., Forcignanò, R., Peris, K., Tosti, G., Testori, A., Trevisan, G., Spagnolo, F., Ascierto, P. A."Sun exposure and melanoma prognostic factors". Oncology Letters 11, no. 4 (2016): 2706-2714. https://doi.org/10.3892/ol.2016.4292