Table 1. Sample characteristics.

	Active-CPAP	Sham-CPAP	p-value
Age	44.7 (+/−8.8)	41.6 (+/−8.3)	0.5
BMI	29.9 (+/−4.2)	25.5 (+/−2.1)	0.02
AHI	45.8 (+/−26)	32.8 (+/−17.7)	0.2
ESS	6.8 (+/−5.5)	9 (+/−3.7)	0.3
TST	371.4 (+/−85.7)	369.8 (+/−45.4)	1
Sleep efficiency	82.2 (+/−16.3)	83.6 (+/−9.3)	0.8
REM	17.2 (+/−4.9)	15.7 (+/−6.9)	0.6
Stage 1	12.1 (+/−9)	10.1 (+/−6.6)	0.6
Stage 3+4	5.8 (+/−7.2)	8 (+/−9)	0.6
Minutes <90% SpO2	75.4 (+/−123.3)	6.6 (+/−8)	0.1
Treatment compliance	59 (+/−29)	69 (+/−30)	0.6
(% of days with >4h CPAP use)

BMI  =  body mass index, AHI  =  apnea hypopnea index, ESS  =  Epworth Sleepiness Scale, TST  =  total sleep time, REM  =  rapid eye movement sleep.