Reactions to disclosed biofeedback information on skin DNA damage in individuals after a beach holiday: a mixed...

The incidence of skin cancer among Danes is one of the highest in the world. Most skin cancers are, however, avoidable with sun protection and reduction of exposure. One way to increase awareness could be through personal biofeedback information about skin DNA damage.

This study investigates the influence of biofeedback information about skin DNA damage on Danish beach holiday travelers' perception of risk of developing skin cancer and motivations for behaviour change.

The intervention experiment included 20 participants aged 36-56 years, travelling to destinations with a high UV-index in February/March 2023. A new technology for detecting skin DNA damage in urine was used. Each participant was required to provide urine samples before and after travelling on holiday and participate in an interview about risk perceptions. The interviews were semi-structured and included the disclosure of DNA damage obtained during the holiday. Risk perceptions were assessed using a scale before and after the disclosure of biofeedback information.

We identified key elements affecting perceived susceptibility of skin cancer as well as central barriers for behaviour change. The intervention increased risk perceptions for 35% of participants, and 30% expressed intentions to adopt more sun protective practices. However, most participants' perceived susceptibility to skin cancer did not change significantly, as the DNA damage still appeared too abstract.

The findings suggest that biofeedback information can increase risk perceptions related to skin cancer and initiate intended behaviour change for some. Larger scale studies are needed and should include quantification of the individual DNA damage thereby making the assessed risk more relatable and personally relevant.