Background: Campaigns aimed at changing sun exposure behavior in the population exists in several countries. The effects of these initiatives are mostly evaluated by distribution of questionnaires, which are suitable for collecting knowledge from representative population-based samples. Bias can potentially limit the reliability of conclusions drawn based on questionnaire data and it is essential that questionnaires are evaluated for validity and reliability. In 2015, a new questionnaire for evaluations of skin cancer health interventions tested for validity and reliability was introduced in the Danish Sun Safety Campaign.
Objective: To examine sun related behavior measured with criteria validity for exposure to uv-radiation as a means of evaluation for the Danish Sun Safety Campaign.
Methods: During June-August in 2015, 2016, 2018, 2020 and 2022 population based samples of 23.976 persons in total was collected. The questionnaire included a protection scale, an exposure scale and a number of other scales including knowledge, attitude and campaign awarenss. We applied descriptive analysis, linear and logistic regression analysis.
Outcome: We identify potential predictors of sun-related behavior associated with exposure to uv-radiation. Together with new knowledge about the sun related behavior of the Danes the Danish Sun Safety Campaign can use this knowledge for future priority of tasks.