"From Where I Stand": using multiple anchors yields different benchmarks for meaningful improvement and worsening in the rheumatoid arthritis flare questionnaire (RA-FQ).
Susan J BartlettVivian P BykerkOrit SchieirMarie-France ValoisJanet E PopeGilles BoireCarol A HitchonGlen Stewart HazlewoodLouis BessetteEdward C KeystoneCarter ThorneDiane TinClifton O Binghamnull nullPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2022)
Thresholds to identify meaningful change vary by anchor used. These data offer new evidence demonstrating robust psychometric properties of the RA-FQ and offer guidance about improvement or worsening, supporting its use in RA care, research, and decision-making.