Table 3.

Pulmonary function tests (PFT) interpretation by severity.

	Frija-Masson et al, 2020&		Huang et al, 2020		Mo et al, 2020		You et al, 2020
PFT Interpretation	Non-severe	Severe	Non-severe	Severe	Non-severe	Severe	Non-severe	Severe
	n = 29	n = 16	n = 40	n = 17	n = 91	n = 19	n = 12	n = 6
Restrictive, n (%)	5 (17.2)	8 (50)	2 (5)#	4 (23.5)#	8 (8.8)#	2 (10.53)#	1 (8.3)	2 (33.3)
			3 (7.5)##	4 (23.5)##	18 (19.8)##	9 (47.37)##
Obstructive, n (%)	NR	NR	NR	NR	5 (5.5)*	0 (0)*	3 (16.7)	0 (0)
Altered difusión, n (%)	7 (24.2)	5 (31.25)	17 (42.5)**	13 (76.5)**	35 (38.5)**	16 (84.21)**	NR	NR
Time of assessment	30 days after symptoms onset		30 days after discharge from the hospital		27.9 ± 7 days after the onset of disease		38 ± 13.4 days after hospital discharge

^#Author reported values lower 80% predicted FVC.

^##Author reported values lower 80% predicted TLC.

*Author reported values lower 70% predicted FEV₁/FVC.

**Author reported values lower 80% predicted DL_CO.

^&Only 45 patients were classified by severity.