Comparison of Auto- and Fixed-Continuous Positive Airway Pressure on Air Leak in Patients with Obstructive Sleep Apnea: Data from a Randomized Controlled Trial

Table 4

Comparison between fixed- and auto-CPAP.

	Fixed-CPAP	Auto-CPAP	value
Device
Current AHI (event/h)	3.7 (2.2; 8.0)	3.6 (2.1; 6.5)	0.38
CPAP use (h/night)	5.7 (3.9; 6.7)	5.3 (3.8; 6.7)	0.35
CPAP level (cmH2O)	9.0 (8.0; 11.0)	7.5 (6.5; 9.4)	<0.0001
Interface
Oronasal^a	52 (41.6)	49 (35.3)	0.29
Chin strap^b	0 (0)	6 (4.23)	NA
Heated humidifier^c	64 (49.6)	67 (47.2)	0.69

AHI: apnea-hypopnea index and CPAP: continuous positive airway pressure. Data are expressed as % or median (IQR); ^amask type from 8 patients was missing; ^bchin strap use from 6 patients was missing; ^cheated humidifier use from 5 patients was missing.