“…Epidemiologic findings support an association between fair skin, inability to tan, and the risk of both melanoma and NMSC 12, 22, 28, 29. For whites in the U.S., the incidence of NMSC is associated with age and lifelong residence in areas with high levels of ambient ultraviolet B (UVB) radiation (i.e., lower latitude) 12, 13, 22, 30, 31. Although chronic, cumulative, UV exposure appears to be the most important risk factor for developing NMSC overall, recent studies suggest that intermittent intense sun exposure early in life, leading to sunburn, may also be a risk factor for some basal cell carcinomas 23, 30, 32.…”