Experience and measurement of fatigue in adults with Crohn’s disease: results from qualitative interviews and a longitudinal 2-week daily diary pilot study

Journal of Patient-Reported Outcomes

Table 10 Known-groups validity of the FACIT-F, Day 1

Anchor	FACIT-F Day 1 score		Overall F-test		Pairwise comparison^a (p value)
Anchor	N	Mean (SD)	Test value	p value	Pairwise comparison^a (p value)
PGIS-Fatigue Day 1 mean scores			82.9	< 0.0001	1: < 0.0001, 2: < 0.0001, 3: 0.0002
None/mild	21	43.8 (3.9)
Moderate	33	24.9 (8.8)
Severe/very severe	22	16.2 (6.9)

^aPairwise comparisons between means were performed using Scheffe’s test, adjusting for multiple comparisons:
1 = None/mild versus moderate
2 = None/mild versus severe/very severe
3 = Moderate versus severe/very severe
FACIT-F, Functional Assessment of Chronic Illness Therapy–Fatigue; PGIS, Patient Global Impression of Severity; SD, standard deviation