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Published on: March 3, 2023
User-Centered Development of a Digital Health Service for Diabetic Foot Ulcer Risk Stratification: Usability Study.
Ulla Hellstrand Tang1,2, Shivani Ravichandran3, Stefan Candefjord3
1Department of Prosthetics and Orthotics at the Department for Biomedical Engineering and Medical Physics, Sahlgrenska University Hospital, Falkenbergsgatan 3, Gothenburg, 41285, Sweden, 46 706397913, 46 31408162.
A new clinical decision support system (CDSS) aids healthcare professionals in assessing diabetic foot ulcer (DFU) risk. While usability was slightly reduced post-testing, the system shows potential for consistent, person-centered DFU prevention.
Area of Science:
- Digital Health
- Clinical Decision Support Systems
- Diabetic Foot Ulcer Prevention
Background:
- Globally, 537 million people have diabetes, with a 34% lifetime risk of developing diabetic foot ulcers (DFUs).
- Strengthened preventive initiatives are crucial for managing DFU risk.
Purpose of the Study:
- To develop and evaluate a clinical decision support system (CDSS) for healthcare professionals.
- The CDSS aims to aid in foot assessment and risk stratification for DFU prevention.
Main Methods:
- A CDSS was developed using human-computer interaction principles for DFU risk assessment.
- Usability testing with 9 healthcare professionals in Sweden evaluated effectiveness, efficiency, and satisfaction using the System Usability Scale (SUS).
Main Results:
- Post-test SUS scores averaged 68.9, indicating above-average usability.
- The CDSS effectively supported users in 78% of clinical tasks, though some complex tasks required improvement.
- Users reported the CDSS has potential for equitable, consistent, and person-centered DFU prevention.
Conclusions:
- The developed digital health service for DFU risk stratification shows promising usability.
- Further national and international validation is recommended, focusing on user needs and contextual factors.

