This entry relates to data collected as part of a pilot study of incorporating a brief intervention for personalised cancer risk assessment to promote behaviour change into primary care published in the linked paper. Two datasets are available. The first is the pseudo-anonymised quantitative dataset collected from the questionnaires completed by patients before the intervention, immediately after the intervention and three months after the intervention. The data dictionary for this data is attached within this record. The questionnaires are published as supplementary material within the paper and also included here. The second dataset is the pseudo-anonymised transcripts from the qualitative interviews conducted with patients and healthcare professionals as part of the study. The interview schedules are published as supplementary material within the paper and also included here. Consent was given by participants to share anonymised data with other responsible researchers. As consent was not given to share publically it is not possible to add the data to the repository. Instead, the data are stored within the Primary Care Unit and researchers can request access by contacting Dr Juliet Usher-Smith (jau20@medschl.cam.ac.uk) or PCU_DATA@medschl.cam.ac.uk Applicants will be required to complete a Data Access Agreement that will indicate the criteria for data access and conditions for research use and will incorporate privacy and confidentiality standards to ensure data security.