The F unctional A ssessment of C hronic I llness T herapy (FACIT) Measurement System: properties, applications, and interpretation

Table 1 Minimally important differences for select FACIT scales

Instrument	Scale/Subscale	MID (points)	Reference
FACT-G	PWB	2–3	[28]
	SWB	NA
	EWB	2*	[28, 29]
	FWB	2–3	[28]
	Total FACT-G	3–7	[27, 28, 30, 31]
FACT-Anemia	Fatigue Subscale	3–4	[27, 31]
	TOI-Fatigue	5	[27]
	TOI-Anemia	6
	Total FACT-Anemia	7
FACT-Breast	Breast cancer subscale	2–3	[30]
	TOI-Breast	5–6
	Total FACT-Breast	7–8
FACT-Colorectal	Colorectal cancer subscale	2–3	[32]
	TOI-Colorectal	4–6
	Total FACT-Colorectal	5–8
FACT-Head & Neck	Total FACT-Head & Neck	6–12	[33]
FACT-Lung	Lung cancer subscale	2–3	[34]
	TOI-Lung	5–6

*This MID should be considered tentative as it may be revised based on future research.

ISSN: 1477-7525