Supplementary file for: Sugden C, Dubois S, Maynard P, Scott N, Le Clerc A, Clark M, McGill S, O’Brien TA. UV arrows descend from above: Lessons from a mass media campaign to improve sun protection behaviours among young adults. Public Health Res Pract. 2024;34(2):e3422416. https://doi.org/10.17061/phrp3422416