Table 3.

Scoring criteria of arousal stability score

Scoring criteria	Arousal stability score
≥ 2/3 of all segments classified as 0 or A1	11	Non-hypoaroused fatigue
≥ 2/3 of all segments classified as 0, A1, A2 or A3	10
≥ 1/3 of segments from minutes 11–15 classified as B1	9
≥ 1/3 of segments from minutes 6–10 classified as B1	8
≥ 1/3 of segments from minutes 1–5 classified as B1	7
≥ 1/3 of segments from minutes 11–15 classified as B2/3	6	Hypoaroused fatigue
≥ 1/3 of segments from minutes 6–10 classified as B2/3	5
≥ 1/3 of segments from minutes 1–5 classified as B2/3	4
≥ 1 C-stage occurred in minutes 11–15	3
≥ 1 C-stage occurred in minutes 10–6	2
≥ 1 C-stage occurred in minutes 5–1	1