User-Centered App Design for Acutely Ill Children and Adolescents.

Background and Objectives: The high level of acceptance and consistent use of smartphones by children and adolescents present new opportunities to monitor and collect health data. For acutely ill children and adolescents, collecting symptom data via smartphone applications (apps) provides patient-reported data that can be collected daily and offers the potential to provide a more comprehensive picture of the symptom experience. The purpose of this study was to employ user-centered design principles and medical professional input in order to obtain feedback and insight into redesigning our Technology Recordings for better Understanding Blood and Marrow Transplant (TRU-PBMT) app. This redesigned app will be used for children and adolescents with cancer or undergoing blood and marrow transplantation. Method: We interviewed six pediatric blood and marrow transplant patients (ages 10-17 years) who had pilot tested the app, and we surveyed 30 pediatric oncology clinicians. Results: Interview feedback from previous app users and survey feedback from clinicians guided the app redesign. We incorporated suggestions to make the app more engaging, meaningful, personal, and motivating in order to increase symptom reporting. We added emojis to the symptom tracker, a mood scale, and personalized symptom graphs. Conclusion: Leveraging mobile health technologies may be a useful and acceptable approach to obtain symptom data; however, design and software development needs to be evidenced-based and informed by user needs. Our approach using patient and clinician feedback was valuable in the redesign of the TRU-PBMT app and will contribute to symptom research for acutely ill children and adolescents.