Acceptability and influence of a complex personalized intervention on changes in photoprotection behaviours among people with xeroderma pigmentosum.

Exploration of responses to XPAND is required in the international XP population, followed by adaptation and evaluation to see if it could benefit other patient groups at higher risk of skin cancer. Implications for approaches to behaviour change include the acceptability of complex multidimensional interventions, the importance of dynamic personalization and the interactive nature of behaviour change mechanisms.