Table 1.

Core Outcome Set to Assess Pulmonary and Quality of Life Domains of COVID-19 Patients

Measure	Number of items	Response format	Range of score	Score interpretation	MCID
COPD Assessment Test (Polkey et al., 2018)	8	5-point Likert scale	0–40	5: No impact 10: Low impact 10–20: Medium impact 20–30: High impact 30: Very high impact	2 or more points (Kon et al., 2014)
EQ-5D-5L (EQ-5D, 2020)	5	5-point Likert scale from “no problems” to “unable to/extreme problems”.	0–5	Higher score = worst health	Not reported
EQ-VAS (EQ-5D, 2020)	1	100-point visual analog scale from “The best health you can imagine” to “the worst health you can imagine”	0–100	Higher score = better health	EQ-VAS : 10 points(Carfì et al., 2020)