From: Retrospective cross-validation of automated sleep staging using electroocular recording in patients with and without sleep disordered breathing
n (%)
≤ 3 min
4 to 10 min
11 to 20 min
> 20 min
Total
Normal/Mild
22 (49)
12 (27)
7 (15)
4 (9)
45
Moderate/Severe
20 (48)
10 (24)
3 (7)
9 (21)
42
42 (48)
22 (25)
10 (12)
13 (15)
87