Table 2.

Multiple Regressions with Actigraphic Sleep Continuity and Rest-Activity Variables

	Model 1		Model 2		Model 3
	B	t	B	t	B	t
Sleep Onset Latency
CES-D	0.56	2.82**	0.51	2.59*	0.46	2.34*
Sex			−13.28	−4.44***	−12.99	−4.35***
CES-D*Sex					0.66	1.85†
Adjusted R2	0.02**		0.06***		0.06***
Wake Time After Sleep Onset
CES-D	0.28	1.87†	0.26	1.70†	0.24	1.56
Sex			−6.26	−2.70**	−6.14	−2.65**
CES-D*Sex					0.27	0.98
Adjusted R2	0.01†		0.02**		0.02**
Sleep Efficiency
CES-D	−0.14	−2.23*	−0.12	−1.93†	−0.11	−1.76†
Sex			5.91	6.38**	5.85	6.31***
CES-D*Sex					−0.13	−1.21
Adjusted R2	0.01*		0.09***		0.09***
Total Sleep Time
CES-D	−0.15	−0.34	−0.01	−0.01	0.12	0.28
Sex			33.16	5.20***	32.41	5.10***
CES-D*Sex					−1.71	−2.26*
Adjusted R2	0.00		0.06***		0.07***
Mesor (mean activity level)
CES-D	−0.52	−1.14	−0.51	−1.12	−0.66	−1.43
Sex			2.56	0.36	2.85	0.40
CES-D*Sex					1.70	2.02*
Adjusted R2	0.00		0.00		0.01*
Amplitude (height of the rest- activity rhythm)
CES-D	−0.74	−1.68†	−0.73	−1.64†	−0.89	−1.98*
Sex			7.06	1.01	7.38	1.06
CES-D*Sex					1.86	2.27*
Adjusted R2	0.003†		0.003†		0.01*
Acrophase (peak of the rest- acitvity rhythm)
CES-D	0.03	2.54*	0.03	2.58*	0.03	2.51*
Sex			0.17	0.89	0.17	0.89
CES-D*Sex					0.00	0.19
Adjusted R2	0.01*		0.01*		0.01*

^†p < .10;

^*p < .05;

^**p < .01;

^***p < .001.

CES-D = Center for Epidemiologic Studies Depression Scale.