Table 2.

Group differences in sleep and fatigue characteristics.

Sleep and Fatigue Characteristics	Depressed (n=46) % or M(D)	Healthy (n=60) % or M(SD)	p	Partial η2
Actigraphy Variables
Time asleep (min)	6hr 36.41m (46.6m)	6hr 54.14m (37.3m)	.03	.04
Sleep efficiency	81.82 (6.4)	85.12 (4.0)	<.01	.07
Wake after sleep onset (WASO)	73.03 (29.6)	61.49 (18.0)	.01	.06
Nap duration (min)	1hr 1.44m (77.2m)	26.92 m (43.2m)	<.01	.07
Subjective Values*
Sleep Hygiene (ASHS)
Physiological	1.34 (0.6)	1.09 (0.7)	.04	.03
Cognitive	2.54 (1.0)	1.99 (0.7)	<.01	.09
Emotional	2.00 (1.0)	0.87 (0.7)	<.001	.29
Sleep Environment	1.30 (0.9)	0.65 (0.7)	<.001	.12
Substances	0.15 (0.5)	0.05 (0.3)	.20	.02
Sleep Stability	2.67 (1.1)	1.89 (0.9)	<.001	.12
Total	1.67 (0.6)	1.09 (0.4)	<.001	.24
Sleep Quality (ASWS)
Going to bed	3.08 (1.0)	4.09 (1.0)	<.001	.19
Falling asleep	3.24 (1.1)	4.48 (.8)	<.001	.32
Maintaining sleep	3.69 (1.2)	4.68 (.8)	<.001	.21
Reinitiating sleep	4.08 (1.0)	5.15 (.6)	<.001	.31
Returning to wakefulness	2.52 (.9)	3.38 (.9)	<.001	.17
Total	3.32 (.83)	4.36 (.6)	<.001	.34
Pre-Sleep Arousal (PSAS)
Cognitive	24.33 (6.9)	15.12 (4.5)	<.001	.38
Somatic	17.18 (5.6)	10.76 (2.8)	<.001	.39
Total	41.51 (11.0)	25.88 (6.6)	<.001	.45
Fatigue (PedsQL - Fatigue)
General	47.92 (18.3)	77.90 (13.2)	<.001	.48
Sleep/Rest	48.20 (15.8)	70.13 (15.8)	<.001	.32
Cognitive	44.32 (18.2)	79.10 (15.7)	<.001	.52
Total	49.07 (14.9)	86.91 (13.3)	<.001	.52
Insomnia (from ASWS)
1) Difficulty falling asleep (>60% time)	28 (66.6%)	11 (18.6%)	<.001	.44
2) Difficulty staying asleep (>60% time)	19 (43.2%)	5 (8.5%)	<.001	.36
Either 1) or 2)	32 (72.7%)	13 (22.0%)	<.001	.48

^*N=45 (depressed group); 49 (healthy group)