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 6

IPAP, EPAP, and O2 requirement within the first hour in the two groups.

Ventilator setting	TFM	ONM	value
	N = 24	N = 24
IPAP (cm H2O)	13.21 ± 1.89	14.46 ± 3.13	0.273^†
EPAP (cm H2O)	5.04 ± 0.81	6.17 ± 1.74	0.010^†
O2 (Lit/min)	8.13 ± 4.87	9.92 ± 3.43	0.180^†

IPAP: inspiratory positive airway pressure; EPAP: expiratory positive airway pressure.
^†Mann–Whitney U test.