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This difference between sexes not only affects the magnitude of rates but also anatomic site of tumours. Trunk is the most frequent melanoma site in males, as opposed to lower limbs in females. These dissimilarities may be caused by the degree of sun exposure, which affects more frequently legs in females and trunk in males [33].

Disease is diagnosed in an earlier stage among females than among males. Similar results were found in other population-based studies. The authors of these studies suggest the opportunity for early diagnosis practices [34, 35].