Table 2.

Evidence-based user-centered design process for the development of patient-reported outcome text messages.

Steps	Methods	Outputs
1. Adapt	Patient focus groups and provider interviews	Thematic analysis of patient and provider needs, preferences, and barriers and facilitators of tracking PROsa Review of existing validated PRO questionnaires by study team based on thematic analysis Initial list of PROs for i-Matterb comprised individual items extracted from existing questionnaires Reduced list of PROs based on importance rankings from focus group participants
2. Integrate	Design workshop Workflow mapping Problem or opportunity analysis Presentation of PRO list from step 1 EHRc integration	Refined list of PROs Clinic workflow or patient journey maps Essential features of i-Matter system i-Matterb prototype: PRO text messages and personalized report
3. Evaluate	2 rounds of patient user testing sessions Provider interviews	Finalized PROs and personalized report Fully functional i-Matter intervention

^aPRO: patient-reported outcome.

^bi-Matter: investigating an mHealth texting tool for embedding patient-reported data into diabetes management.

^cEHR: electronic health record.