Table 3.

Outcomes according to oxygen-support category.

	Oxygen-support group at baseline N (%)*
	Invasive 1 (100)	Non-invasive 10 (100)	Low-flow oxygen 68 (100)	Ambient air 8 (100)
Oxygen-support group after therapy
Death	0	2 (20)	8 (11.8)	1 (12.5)
Invasive	1 (100)	3 (30)	8 (11.8)	0
Non-Invasive	0	0	3 (4.4)	0
Low-flow oxygen	0	1 (10)	7 (10.3)	0
Ambient air	0	0	2 (2.9)	0
Discharged	0	4 (40)	40 (58.8)	7 (87.5)
Improvement	0	5 (50)	42 (61.8)	7 (87.5)

*In one patient information was not available at baseline.