TABLE 1.

Assessment outcomes before and after rehabilitation

Outcomes	Outcome Measure	Outcome Scores		Clinically Important Difference?
		Before Rehabilitation	After Rehabilitation
Dyspnea	mMRC	3	1	Yes
Health status impairment	CAT	8	2	Yes
Fatigue	CIS-Fatigue	43	11	Yes

mMRC measures functional limitation resulting from dyspnea; CAT measures globally the impact of cough, sputum, dyspnea, and chest tightness on health status/health-related quality of life; and CIS-Fatigue measures four dimensions of fatigue: fatigue severity, concentration problems, reduced motivation and activity. The unit change indicative of a clinically important difference is 1 for mMRC,¹⁶ 2 for CAT,¹⁷ and 9 for CIS-Fatigue.¹⁸