RETRACTED ARTICLE: Content validity and psychometric evaluation of Functional Assessment of Chronic Illness Therapy-Fatigue in patients with psoriatic arthritis

Journal of Patient-Reported Outcomes

Table 1 Ranking of PsA symptoms by patients in the qualitative study (N = 12)

Symptom	Rated as “important” or “extremely important”, n (%)
Pain (in joints, tendons, or entheses)	10 (83)
Fatigue (tired/listless/lack of energy/washed out/low energy/weak)	7 (58)
Dactylitis (swelling of entire finger[s] or toe[s])	6 (50)
Swelling (not in finger[s] or toe[s])^a	5 (42)
Skin-related symptoms (itch, dryness, scaling, redness, bleeding, inflammation, painful skin)	5 (42)
Joint stiffness (any part of the body)	3 (25)
Other symptoms^b	6 (50)

PsA psoriatic arthritis
^aSwelling described as visible inflammation in the feet/ankles (n = 4), hips (n = 2), jaw (n = 1), elbows (n = 1), or knees (n = 1)
^bOther symptoms that were ranked as important or extremely important include feeling depressed/down (n = 2), burning in knees (n = 1), cramping in the knees (n = 1), thumb “twisting” (n = 1), and weak hands (n = 1)