Table 5.
Outcome variables for the total sample and comparison between hypoaroused fatigue group (arousal stability score ≤ 6) and non-hypoaroused fatigue group (arousal stability score ≥ 7)
| Total sample (N = 102) | Non-hypoaroused fatigue (n = 78) | Hypoaroused fatigue (n = 24) | Test value | p value | Effect size ɳ2 (90% CI) | |
|---|---|---|---|---|---|---|
| Daytime sleepiness | ||||||
| Trait (ESS) | 8.8 ± 4.0 [0–19] | 8.3 ± 4 | 10.4 ± 4 | Z = − 2.20 | 0.028 | 0.047 (0.004–0.134) |
| State (SSS) |
3.6 ± 1.2 [1–6] n = 99 |
3.4 ± 1.2 n = 75 |
4.1 ± 1.2 | Z = − 2.31 | 0.021 | 0.054 (0.004–0.138) |
| BDI-II score | 29.5 ± 8.6 [16–53] | 29.2 ± 8.8 | 30.3 ± 7.9 | Z = − 0.73 | 0.468 | 0.005 (.00–0.05) |
| SF-A/R | ||||||
| Sleep quality |
2.7 ± 1.0 n = 95 |
2.7 ± 1.03 n = 73 |
2.6 ± 0.7 n = 22 |
Z = − 0.23 | 0.819 | 0.0006 (.00–0.03) |
| Total time in bed (h:min) |
7:13 ± 1:38 [1:00–11:30] n = 100 |
7:09 ± 1:44 [1:00–11:30] n = 76 |
7:24 ± 1:19 [5:15–10:30] n = 24 |
Z = − 0.32 | 0.749 | 0.001 (.00–0.037) |
Bold values denote statistical significance at the p< 0.05 level
Mean ± SD [range]; ESS Epworth Sleepiness cale, SSS Stanford Sleepiness Scale, BDI-II Beck Depression nventory version 2, SF-A/R sleep inventory (refers to sleep during the night before EEG recording)