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 |