Comparison of Comfort and Effectiveness of Total Face Mask and Oronasal Mask in Noninvasive Positive Pressure Ventilation in Patients with Acute Respiratory Failure: A Clinical Trial

Table 2

Comparison of clinical and oxygenation parameters at baseline (time zero) and six hours after initiation of treatment.

Efficacy	TFM	ONM	value
	N = 24	N = 24
	Clinical
HR
Time 0	91.12 ± 11.96	90.25 ± 11.87	>0.999^†
Time 6 h	86.09 ± 6.47	86.13 ± 9.47	0.987
RR
Time 0	21.50 ± 3.28	21.63 ± 1.86	0.175^†
Time 6 h	19.30 ± 2.38	19.92 ± 1.93	0.045^†
SPO2
In room	84.17 ± 6.81	81.0 ± 6.65	0.063^†
With O2	90.37 ± 4.55	92.33 ± 2.99	0.365^†
Frequency of patients using accessory muscles
Time 0	4 (16.7%)	10 (41.7%)	0.057
Time 6 h	1 (4.3%)	6 (25.0%)	0.055

^†Mann–Whitney U test.