Table 1.

Baseline characteristics of survivors

Baseline Characteristic	Facemask NIV (n=20)		Helmet NIV (n=32)		p-value
Age (years)	58.4	[50.8–71.5]	58.2	[49.7–66.6]	0.52
Female	10	50%	16	50%	1
APACHE II	24	[22–27]	25	[20–28]	0.87
Pre admission Residence
Home	18	90%	32	100%	0.14*
Nursing Home	2	10%	0	0%
Functionally independent**	15	75%	28	87.5%	0.28
Past Medical History
Congestive Heart Failure	8	40%	8	25%	0.25
Hematologic malignancy	2	10%	4	13%	1
Cancer, solid tumor	3	15%	2	6%	0.36
Stem cell transplant	1	5%	3	9%	1
Solid organ transplant	1	5%	4	13%	0.64

Data are expressed in n (%) or median [Interquartile Range], where appropriate;

^*Comparison of patients who lived at home vs not home

^**Functional independence defined as a Barthel Index score≥70 ^8,9