|Intervention components||Description of component||Purpose of component||Summary of intervention functions||Behaviour change techniques ||Example of application within the intervention|
Touchscreen questionnaire: “About you”|
|Background information about the participant including personal and family history of cancer, body mass index and cancer screening attendancea.||Contextual information about potential risk factors for cancer.||Education, persuasion, environmental restructuring||Information about health consequencesb, prompts/cuesc||
Information about the benefits of early diagnosis.|
Information about factors that may increase the risk of developing cancer (e.g. being overweight).
Questions about previous engagement with cancer screening.
Touchscreen questionnaire: “Your lifestyle”|
|Diet, smoking, alcohol consumption and physical activity.||Contextual information about potential risk factors for cancer.||Education, persuasion, enablement||Information about health consequences, credible sourced, social supporte||
Signposting to local services, such as Stop Smoking Wales.|
Encouragement to pass the information on to friends or family.
Touchscreen questionnaire: “Your health”|
|Cancer warning signs and symptoms (see Additional file 2)||Contextual information about potential symptoms of cancer.||Education, persuasion, environmental restructuring||Information about health consequences, prompts/cues, credible source||
Signposting to General Practitioner.|
Information about cancer warning signs and symptoms to encourage early presentation within three weeks of noticing a potential symptom (now and in the future).
|Personalised results||Displays a printable summary of the individual’s results and action (for example, to present to their General Practitioner with potential cancer symptoms).||Provides participants with an overview of their health check results, to act as a prompt for change (e.g. discussion at their GP appointment).||Education, enablement||Information about health consequences, action planningf, goal setting g||
Participants complete the following statement: “If I notice a symptom, I will go and see my ________ within _______ of noticing the symptom”.|
Remind participants about the benefits of early diagnosis.