Table 2.

Sleep characteristics (n = 73)

Sleep recording measures	Mean ± SD
Stage 1 sleep, %	16.9 ± 10.3
Stage 2 sleep, %	61.0 ± 9.3
Slow wave sleep (stage 3 and 4), %	2.8 ± 5.0
REM sleep, %	16.9 ± 6.2
Sleep efficiency, %	82.9 ± 8.5
Wake after sleep onset, min	59.4 ± 32.3
AHI	49.3 ± 29.7
ODI	10.8 ± 20.9
Total arousal index	33.2 ± 26.0
Snore arousal index	2.1 ± 2.2
Spontaneous cortical arousal index	0.7 ± 1.0
Respiratory cortical arousal index	1.7 ± 2.7
Spontaneous movement arousal index	1.6 ± 2.1
Respiratory movement arousal index	26.3 ± 27.5
Limb movement arousal index	0.3 ± 0.4
Periodic limb movement index	0.3 ± 0.4