Validation of the Synovo Digital Disease Activity Score (DDAS) Against Physician-Performed DAS28/CDAI: A Non-Clinical, Non-Interventional, Non-Academic Study

The goal of this observational study is to assess whether the Synovo digital assessment can measure rheumatoid arthritis disease activity in adults with rheumatoid arthritis. The main questions it aims to answer are: How closely does the Synovo digital disease activity score agree with the clinician-assessed DAS28 score? Can the Synovo assessment identify changes in disease activity between follow-up visits? Participants will: Complete a structured digital questionnaire Record guided videos of selected joint movements using a smartphone Undergo a standard DAS28 assessment by a clinician during the same visit Some participants may repeat the assessments at a later follow-up visit.