Table 2.

Sleep characteristics

Sleep recording measures	Mean ± SD (range)
% Stage 1 sleep	17.8 ± 9.6 (3.5–46)
% Stage 2 sleep	61.0 ± 9.9 (39.5–77.7)
% Slow wave sleep (stage 3 and 4)	5.7 ± 7.5 (0–26.7)
% REM Sleep	15.5 ± 6.2 (4.2–30.2)
AHI	64.9 ± 33.1 (16.2–135.9)
AI	36.0 ± 35.2 (0.2–117.4)
ODI	42.7 ± 36.7 (0–125.9)
Total arousal index	46.7 ± 32.7 (8.2–122.7)
Snore arousal index	2.0 ± 2.2 (0–8.8)
Spontaneous cortical arousal index	1.0 ± 1.2 (0–5.4)
Respiratory cortical arousal index	2.8 ± 5.1 (0–30.3)
Spontaneous movement arousal index	1.5 ± 1.3 (0–4.9)
Respiratory movement arousal index	38.9 ± 35.3 (1.4–120.5)
Periodic limb movement index	0.4 ± 0.8 (0–3.5)