Latin America and the Caribbean Code Against Cancer 1st edition: Formative research on the comprehension and persuasiveness of the recommendations by the general population

Background: Cancer prevention is the most efficient and cost-effective strategy in cancer control. One prevention strategy is giving credible, clear, and evidence-based recommendations to the individual; however, it is key that these messages are accepted and understood properly by the public. This study aimed to pilot the draft recommendations developed as part of the Latin America and the Caribbean (LAC) Code Against Cancer 1st edition, in terms of comprehension and persuasion of each message. Methods: A mixed method two-wave study, in which two versions of the messages were presented to the general population in five LAC countries. We used an ad-hoc questionnaire and interviews that followed the cognitive-pretesting methodology. Results: Findings suggest that the messages were generally well understood, especially in Spanish speaking countries, and that the messages were generally more understandable than persuasive. We adapted and revised the recommendations based on the findings of the first Wave and held a second iteration in the Spanish speaking countries. We observed a better understanding of most messages in Wave 2. Conclusion: The LAC Code Against Cancer is a valuable tool of well understood messages for the public, with concrete actions everyone can take to prevent cancer. Further research should assess particularities of the region for further efficient dissemination of these important health messages, identify key messages for certain population groups and future interventions that strengthen health literacy in rural and less educated populations to increase behavior change.