Table 3.

Pearson's Correlation Coefficients Among Weight, Sleep, and Covariate Variables

	BMI	Waist circumference	Mean sleep time	Sleep time variability	Sleep duration
BMI	—
Waist circumference	0.847**	—
Mean sleep time	−0.004	0.017	—
Sleep time variability	0.133	0.164*	0.187*	—
Sleep duration	−0.200*	−0.283**	−0.264**	−0.529**	—
C1 depressive symptoms	0.087	0.083	0.227**	0.204*	−0.190*
C2 education	−0.101*	−0.082	−0.023	0.097	0.007
C3 sleep onset latency	−0.057	0.007	0.337**	0.406**	0.315**
C4 sleep quality	0.051	0.088	0.148	0.144	0.322**
C5 sleep efficiency	−0.131	−0.203*	−0.236**	−0.639**	0.652**
C6 physical activity	−0.063	−0.107	−0.034	−0.027	−0.261**
C7 self-rated health	0.139	0.078	−0.045	−0.131	−0.083
C8 annual income	−0.104	−0.139	−0.102	0.056	−0.021
C9 age	0.033	0.076	−0.135	−0.120	−0.150
C10 race	−0.145	−0.110	0.130	0.022	0.060

C₁–C₁₀ indicate covariates.

^*p < 0.05, ^**p < 0.001.