Table 1.

Characteristics of continuous positive airway pressure recipients separated by 28-day mortality

	Survived	Died
Individuals with COVID-19, n^a	51	88
Swab PCR positive, n	41/51	79/85^b
Mean age, years	58	66	p<0.001 (T test)
Male, n (%)	37 (73)	64 (73)
Ethnicity, n (%)			p=0.93 (chi-squared test)
Asian	9 (18)	17 (19)
Black	13 (25)	2 1 (24)
White	13 (25)	26 (30)
Other	16 (31)	24 (27)
Comorbidity, n (%)
Cardiovascular	4 (8)	16 (18)
Respiratory	6 (12)	6 (7)
Hypertension	25 (49)	38 (43)
Diabetes mellitus	14 (27)	36 (41)
Clinical frailty scale <5, n (%)	48 (94)	77 (88)	p=0.21 (chi-squared test)
Admission creatinine, μmol/L	103	131	p=0.02 (T test)
Admission C-reactive protein, mg/L	154	162	p=0.67 (T test)
Highest FiO₂ required	0.69	0.83	p<0.001 (T test)
Highest PEEP required, cmH₂O	10.1	10.8	p=0.13 (T test)

↵^aone data point missing for 28-day mortality, omitted during analysis;
↵^bthree data points missing for swab results in ‘died’ group; CPAP = continuous positive airway pressure; FiO₂ = fraction of inspired oxygen; PCR = polymerase chain reaction; PEEP = positive end-expiratory pressure.