Sunscreen Use and Sun Exposure
Author Information
Author(s): Autier P, Doré J-F, Reis A C, Grivegnée A, Ollivaud L, Truchetet F, Chamoun E, Rotmensz N, Severi G, Césarini J-P
Primary Institution: Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy
Hypothesis
Does the use of sunscreens with different SPF levels affect actual exposure to UV radiation?
Conclusion
Sunscreens used during sunbathing tended to increase the duration of exposures to doses of ultraviolet radiation below the sunburn threshold.
Supporting Evidence
- Participants using SPF 30 sunscreen without sunburn spent the most time sunbathing.
- The median daily sunbathing duration was 2.4 hours for SPF 10 and 3.0 hours for SPF 30.
- Increased daily UVB exposure was observed with longer sunbathing durations.
Takeaway
Using sunscreen can make people stay in the sun longer, which might not be good for their skin.
Methodology
Participants were randomized to receive SPF 10 or 30 sunscreens and recorded their sun exposure.
Limitations
The study may not account for all factors influencing sun exposure and skin reactions.
Participant Demographics
European participants aged 18–24 years old.
Statistical Information
P-Value
0.054
Statistical Significance
p=0.054
Digital Object Identifier (DOI)
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