Table 3:

Multivariable regression of sleep quality in incident caregivers and matched non-caregiving controls

	TST		TIB		SOL		WASO		SE
	Estimate (SE)	p value	Estimate (SE)	p value	Estimate (SE)	p value	Estimate (SE)	P value	Estimate (SE)	p value
Caregivers vs. Controls	4.74 (8.29)	0.568	12.82 (7.62)	0.093	4.16 (2.00)	0.038	1.22 (3.23)	0.707	−1.27 (1.21)	0.294
Race (Black)	−6.38 (8.94)	0.476	−0.55 (8.10)	0.946	0.09 (2.14)	0.966	2.28 (3.47)	0.511	−1.77 (1.31)	0.177
Age	1.72 (0.57)	0.003	1.49 (0.52)	0.004	−0.08 (0.14)	0.577	0.05 (0.22)	0.809	0.08 (0.08)	0.319
Sex (female)	3.97 (9.22)	0.667	5.78 (8.43)	0.493	0.02 (2.22)	0.993	−0.40 (3.59)	0.911	−0.02 (1.35)	0.991
BMI (Ref = Normal)
Underweight	−57.43 (38.88)	0.140	−21.92 (37.53)	0.560	10.03 (9.66)	0.300	25.64 (15.39)	0.096	−12.36 (5.68)	0.030
Overweight	−1.92 (11.50)	0.867	−0.75 (10.46)	0.943	−2.10 (2.78)	0.450	4.57 (4.46)	0.306	−1.25 (1.68)	0.458
Obese	−14.84 (11.71)	0.206	−10.12 (10.63)	0.342	1.44 (2.82)	0.611	4.89 (4.54)	0.282	−2.12 (1.71)	0.215
CES-D (10-item)	0.34 (0.97)	0.722	2.66 (0.88)	0.003	1.37 (0.23)	<.001	1.60 (0.38)	<0.001	−0.78 (0.14)	<.001
Model R2	0.041	0.028	0.047	0.004	0.097	<.001	0.050	0.005	0.096	<.001

TST = total sleep time; TIB = time in bed; SOL = sleep onset latency; WASO = wake after sleep onset; SE = sleep efficiency; BMI = body mass index.

Outcome variables are scaled in minutes per 1-point change in the predictor.