Parameter Surfers: Point prevalence Swimmers: Point prevalence Surfers: Standardized rate per 100,000 Swimmers: Standardized rate per 100,000 Odds Ratios (surfers to swimmers) Comparative standardized rate (per 100,000, or %) in Australia general population Odds Ratio of Surfers compared to Australia general population Odds Ratio of Swimmers compared to Australia general population
Actinic keratosis 37.1% (25.9-48.1%) 21.8% (9.5-34.1%) 50,862 27,272 2.76 (1.4-5.5) 37-55% 21 - - - -
BCC 11.2% (5.1-17.2%) 14.5% (4.5-24.6%) 27,568 18,181 1.71 (0.8-3.8) 1,541 8 17.89 11.80
SCC in situ 13.8% (7.0-20.6%) 30.9% (16.2-45.6%) 20,690 40,000 0.70 (0.3-1.5) - - - - - -
SCC 1.7% (-0.6-4.1%) 3.6% (0.1-3.5) 9,482 7,272 1.34 (0.4-4.4) 1,035 8 9.16 7.03
Melanoma 5.2% (1.0-9.3%) 1.8% (0.1-5.4%) 5,172 1,818 2.95 (0.4-25.1) 53.5 9 96.7 34.0