Impact of UV-based self-assessed photoaging on sun protection intentions: validation based on trail runners and their companions

Abstract

Appearance-based interventions emphasize how UV exposure contributes to the premature aging of skin. The current study was aimed at evaluating the impact of self-assessed skin damage based on UV imaging on the intention to modify photoprotection habits. A prospective observational study was performed. Mountain runners and their companions participating in the GAP Trail were invited to participate. Participants were asked to complete a validated questionnaire about sun exposure habits, and were invited to see an image of their faces using SkinScope. In total, 116 people participated in the study. The degree of photoaging established by the dermatologist using the Glogau score significantly correlated with that based on self-assessment by the participants using the UV system (p < 0.001). Almost all UV fluorescence image colours significantly correlated with the grade of photoaging. After seeing their image with the UV system, 65.5% stated that they would improve photoprotection measures. UV imaging is a reliable way to self-evaluate photoaging and may reinforce photoprotection habits.