Results
Sample characteristics/demographics
A total of 171 participants (males n=94, surfers n=116,) competed the survey and underwent a total body skin check for AK, BCC, SCC in situ, SCC, and MSCs. Swimmers and surfers had similar mean age, height, mass, body mass index (BMI) and body surface area (BSA). When groups were combined, there was a significant correlation between the total number of skin cancers identified during the screening and both age (r=0.41, P <.001) and BMI (r=0.24, P <.05).
Swimmers were more experienced (+13.1% years); however, surfers had significantly greater UVR exposure (+34.9%, P <.05) as estimated via activity reported for the previous 12 months (total hours/year). Most surfers (93.3%) surfed year-round with 100 percent of participants surfing during the summer months. There were fewer swimmers (65.7%) who swam year-round; however, all swimmers also swam during the summer months.
Both groups reported completing some activity during peak UVR (surfers 42.8% vs swimmer 42.7%). However, both groups were similar in their estimated percentage of activity completed during peak UV (surfers and swimmers 5-100%) (Table 1).
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