The Flare-OA-16 questionnaire measuring flare in knee and hip osteoarthritis in the patient perspective: scale reduction and validation using a Rasch model.
Fabiana QueirogaJonathan EpsteinMarie-Line ErpeldingElisabeth SpitzJean-Francis MaillefertBruno FautrelLeigh F CallahanDavid J HunterFrancis GuilleminPublished in: Journal of clinical epidemiology (2024)
The Rasch analysis was helpful in guiding the decision to refine the measurement instrument. After analysis, the 16-item Flare-OA self-report questionnaire is available for use in clinical research.