High-Flow Nasal Cannula: A Promising Oxygen Therapy for Patients with Severe Bronchial Asthma Complicated with Respiratory Failure

Table 1

Baseline characteristics of patients in the HFNC and COT groups.

Variables	HFNC group (n = 16)	COT group (n = 20)	value
Female, sex, n (%)	10 (62.5%)	12 (60%)	0.515
Age (year)	43.3 ± 10.6	37.5 ± 8.4	0.08
Median ± SD
Medical history of asthma (year)	6.38 ± 1.28	5.95 ± 1.36	0.33
Venous blood gas before the trial
pH	7.30 ± 0.12	7.25 ± 0.58	0.35
PCO2	51.20 ± 8.75	48.71 ± 3.32	0.24
PO2	54.45 ± 6.86	52.68 ± 8.42	0.50
HR	134.0 ± 11.32	138.32 ± 17.54	0.40
RR	32.71 ± 2.40	34.54 ± 4.34	0.11
Treatments before the trial
Oxygen in hospital, n (%)	16 (100%)	19 (95%)	0.55
Corticosteroids	16 (100%)	19 (95%)	0.55