Table 5.

Responsiveness of the C19-YRSm subscales

Subscale (scale range)/change from first assessment	Mean (SD)	Median	Min, Max	ICC	TRR	ES	MID	MCID (SEM)	MCID (RIC)
Symptom Severity (0–30)	2.0 (4.0)	2 (0 to 3)	(−19.0, 23.0)	0.68	0.86	0.50	2	4	6
Functional Disability (0–15)	0.8 (2.4)	1 (−1 to 2)	(−5.0, 10.0)	0.76	0.78	0.33	2	4	5
Overall Health (0–10)	0.3 (1.67)	0.4 (−1 to 1)	(−7.0, 7.0)	0.58	–	0.22	1	–	–

C19-YRSm, modified COVID-19 Yorkshire Rehabilitation Scale; ES, effect size; ICC, intraclass correlation; max, maximum; MCID, minimal clinically important difference; MID, minimally important difference; min, minimum; RIC, Reliable Change Index; SEM, SE of measurement; TRR, test–retest reliability.