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Understanding Ultraviolet Radiation Dorsal Foot Injury at the Beach.

Timothy Allen, Neil Jackson, Richard Wagner

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    |July 4, 2019
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    Beachgoers often forget to protect their feet from the sun. This study found that sunscreen application to the dorsal foot is significantly lower than to other body parts, highlighting a gap in sun protection habits.

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    Area of Science:

    • Dermatology
    • Public Health
    • Skin Cancer Prevention

    Background:

    • The extent to which individuals protect the dorsal aspect of their feet from ultraviolet radiation (UV-R) is not well-documented.
    • Existing research often groups feet with legs as 'lower extremities,' potentially overlooking distinct photoprotection behaviors.

    Purpose of the Study:

    • To investigate whether beachgoers apply sun protection to the dorsal aspect of their feet as frequently as to other body areas.
    • To identify demographic factors and skin cancer knowledge that may correlate with dorsal foot sun protection.

    Main Methods:

    • Anonymous surveys were administered to beachgoers in Galveston, Texas, to assess UV-R protection habits for the dorsal foot.
    • Data collected included demographics, general skin cancer knowledge, and specific sunscreen application practices.
    • Statistical analyses were performed to identify correlations between variables and dorsal foot protection.

    Main Results:

    • Only 103 out of 216 respondents applied sunscreen to their dorsal feet, compared to 183 for the body and 133 for the legs.
    • A significant difference was observed in sunscreen application frequency, with the dorsal foot receiving less coverage (0.58 applications/person) than the body (1.19) and legs (0.86).
    • Females (58.0%) and individuals with Fitzpatrick skin types 1-4 were more likely to apply sunscreen to their dorsal feet than males (36.5%) and those with types 5-6 (47.6%).

    Conclusions:

    • Beachgoers demonstrate lower rates of dorsal foot sun protection compared to other body areas, often due to simply not considering it.
    • Current epidemiological classifications may need revision, as feet and legs appear to be protected using different photoprotection strategies.
    • Distinct consideration of the feet in UV-R research is recommended to improve targeted sun safety interventions.