Data underlying the manuscript: Developing an eHealth intervention for and with cardiac patients with a low socioeconomic position: Lessons learned through the application of the inclusive eHealth guide.

This data repository contains the research data from the study: Developing an eHealth intervention for and with cardiac patients with a low socioeconomic position: Lessons learned through the application of the inclusive eHealth guide. The research was carried out from June 2021 and June 2023.<br>This dataset contains data from a study on enhancing cardiac rehabilitation for patients with a low socio-economic position, divided into three phases. Phase 1 focuses on understanding patient motivation and barriers through workbook assignments, interviews, and focus groups, resulting in design opportunities. Phase 2 involves co-creation sessions for developing a smartphone application, using feedback from patients and hePreviewalthcare providers. Phase 3 evaluates the app's prototype through a mixed-method approach, combining usability metrics and qualitative feedback. Data includes the ethics applications, recruitment materials, and specific phase-related content like focus group guides, interview guides, questionnaires, and their data.<br>The study received ethical approval from the Human Research Ethics Committee of the Delft University of Technology (approval numbers 1691 and 2157).