... 1935, the average American individual had a 1 in 1,500 lifetime risk of developing melanoma. In 2002, the approximate risk of developing melanoma increased to1 in 68 individuals (Rigel, 2002). ... participated in indoor tanning. With more than 25,000 facilities in the USalone, indoor tanning represents a multi-billion dollar industry. Employing over 160,000people, the tanning industry has ... Factors http://dx.doi.org/10.5772/5517211 RECENT ADVANCES IN THE BIOLOGY, THERAPYAND MANAGEMENT OFMELANOMA Edited by Lester M. DavidsFigure 7. Melanoma risk varies according to skin complexion. Skin complexion can be estimated by...