Table 7.

Stepwise multiple regression analysis explaining caregivers' change in depression from changes in sleep quality, fatigue, and sleep cognitions

	Unstd B (SE)	t	Sig.	95% CI for B	Cumulative R2
Mothers (N = 185)
Constant	1.26 (.98)	1.28	.201	[−.68, 3.21]
MAF change	.25 (.06)	3.83	<.001	[.12, .37]	.22
Sleep anger change	.59 (.16)	3.74	<.001	[.28, .90]	.28
PSQI change	.53 (.18)	2.90	.004	[.17, .89]	.32
Sleep doubt change	.38 (.14)	2.74	.007	[.11, .65]	.34
Fathers (N = 169)
Constant	.43 (.67)	.64	.521	[−.89, 1.74]
MAF change	.36 (.06)	5.97	<.001	[.24, .47]	.29
Sleep safety change	.89 (.26)	3.45	.001	[.38, 1.40]	.34
Sleep anger change	.37 (.16)	2.28	.024	[.05, .70]	.36

Abbreviations: CI confidence interval, PSQI sleep quality, MAF fatigue

Mothers: R ² = .34, adjusted R ² = .33, F (4, 180) = 23.5, p < .001

Fathers: R ² = .36, adjusted R ² = .35, F (3, 165) = 31.4, p < .001