Qualitative and psychometric evaluation of the PROMIS®-Fatigue SF-7a scale to assess fatigue in patients with moderately to severely active inflammatory bowel disease

Journal of Patient-Reported Outcomes

Table 2 Cognitive debriefing of the PROMIS Fatigue SF-7a scale

	SF-7a scale
	CD patients (N = 20)	UC patients (N = 19)
Accurately paraphrase?	90-100%^a	90-100%^a
Questions clear?	78-100%^b	88-100%^b
Easy to think about past 7 days?	95%^c	100%
Questions relevant?	95%	79%
Questionnaire easy to complete?	95%	100%

CD, Crohn’s disease; PROMIS, Patient-Reported Outcomes Measurement Information System; SF-7a, Short Form-7a; UC, ulcerative colitis. ^aThe number of patients who were asked whether SF-7a questions were accurately paraphrased varied in CD patients from n = 9 to n = 15 and in UC patients from n = 7 to n = 15 for each SF-7a question. ^bThe number of patients who were asked whether SF-7a questions were clear varied in CD patients from n = 18 to n = 20 and in UC patients from n = 16 to n = 18 for each SF-7a question. ^cBased on n = 19 patients