PROMIS Fatigue short forms are reliable and valid in adults with rheumatoid arthritis.
Clifton O BinghamAnna Kristina GutierrezAlessandra ButanisVivian P BykerkJeffrey R CurtisAmye LeongAnne LyddiattW Benjamin NowellAna Maria OrbaiSusan J BartlettPublished in: Journal of patient-reported outcomes (2019)
These results provide robust evidence supporting the construct validity of the 4, 7, and 8-item PROMIS-Fatigue SFs. They capture fatigue across the spectrum of RA disease activity in diverse groups of individuals and should be considered for use as patient-centered assessments of disease control and treatment efficacy.