Related Experiment Videos
Using a Discrete-Choice Experiment in a Decision Aid to Nudge Patients Towards Value-Concordant Treatment Choices in
Glen S Hazlewood1,2,3, Deborah A Marshall1,2,3, Claire E H Barber1,2,3
1Departments of Medicine and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Canada.
Patient Preference and Adherence
|June 18, 2020
Summary
This study found that a discrete-choice experiment (DCE) decision aid helps early rheumatoid arthritis (RA) patients understand treatment preferences. The tool showed promise in guiding patients toward value-based decisions between methotrexate and triple therapy.
Area of Science:
- Rheumatology
- Health Decision Science
- Patient-Centered Care
Background:
- Early rheumatoid arthritis (RA) management involves complex treatment decisions.
- Patients need tools to align treatment choices with personal values.
- Methotrexate and triple therapy are common treatment options with differing profiles.
Purpose of the Study:
- To evaluate a novel decision aid using discrete-choice experiments (DCEs).
- To assess the aid's ability to clarify patient values for early RA treatment selection.
- To determine if the aid nudges patients toward value-concordant decisions between methotrexate and triple therapy.
Main Methods:
- A proof-of-concept study involving 29 early RA patients.
- Patients completed 6 DCE choice tasks to elicit treatment preferences.
- Agreement between predicted and stated preferences was calculated; usability and completion time were assessed.
Main Results:
- The decision aid predicted patient treatment choices with 72% agreement.
- Triple therapy was predicted for 83% and chosen by 69% of patients.
- 51% of patients felt the DCE tasks improved preference understanding; usability was rated 'OK'.
Conclusions:
- Discrete-choice experiments are feasible for value-clarification in RA decision aids.
- The DCE approach shows potential for promoting value-concordant treatment decisions.
- Further modifications are suggested, potentially integrating DCEs as an add-on to simpler aids.