Table 4.

Parameter estimates for full and best-fitting bivariate Cholesky decompositions for associations between objective and subjective sleep indicators

	Model	A11	C11	E11	A21	C21	E21	A22	C22	E22
Objective sleep duration and objective sleep efficiency	ACE-ACE-ACE	0.72 (0.57–1.00)	0.09 (0.02–.53)	0.19 (0.13–0.27)	0.00 (0.00–0.03)	0.26 (0.15–1.00)	0.01 (0.001–0.03)	0.11 (0.01–0.35)	0.44 (0.01–1.00)	0.18 (0.13–1.00)
	AE-AE-ACE	0.80 (0.59–0.97)	–	0.20 (0.16–0.32)	0.37 (0.28–0.57)	–	0.14 (0.08–0.21)	0.14 (0.07–0.25)	0.26 (0.12–0.34)	0.09 (0.05–0.11)
Objective sleep duration and objective SOL	ACE-ACE-ACE	0.98 (0.86–1.00)	0.01 (0.00–0.04)	0.01 (0.00–0.01)	0.54 (0.29–1.00)	0.14 (0.06–0.46)	0.00 (0.00–0.00)	0.27 (0.02–0.31)	0.00 (0.00–0.00)	0.05 (0.04–0.06)
	AE-AE-ACE	0.99 (0.86–1.00)	–	0.01 (0.01–0.04)	0.80 (0.31–1.00)	–	0.01 (0.001–0.02)	0.06 (0.02–0.11)	0.09 (0.05–0.14)	0.05 (0.03–0.06)
Objective sleep duration and objective sleep midpoint variability	ACE-ACE-ACE	0.72 (0.47–1.00)	0.08 (0.02–0.54)	0.19 (0.13–0.26)	0.00 (0.00–0.03)	0.26 (0.14–1.00)	0.01 (0.002–0.02)	0.11 (0.01–0.36)	0.44 (0.002–1.00)	0.18 (0.11–0.24)
	ACE-CE-CE	0.72 (0.38–1.00)	0.08 (0.02–0.54)	0.19 (0.14–0.26)	–	0.26 (0.12–1.00)	0.01 (0.001–0.02)	–	0.51 (0.02–1.00)	0.21 (0.20–0.26)
Objective sleep midpoint time and sleep midpoint variability	ACE-ACE-ACE	0.04 (0.001–0.10)	0.90 (0.73–1.00)	0.06 (0.04–0.08)	0.11 (0.01–0.37)	0.08 (0.001–0.12)	0.01 (0.001–0.05)	0.00 (1.00–1.00)	0.62 (0.49–0.86)	0.18 (0.12–0.24)
	CE-CE-CE	–	0.93 (0.76–1.00)	0.07 (0.06–0.08)	–	0.11 (0.03–0.15)	0.04 (0.03–0.08)	–	0.66 (0.48–0.72)	0.19 (0.12–0.24)
Objective sleep duration and parent-reported sleep duration	ACE-ACE-ACE	0.71 (0.55–0.88)	0.09 (0.02–0.24)	0.20 (0.14–0.43)	0.00 (0.00–0.03)	0.66 (0.51–0.82)	0.01 (0.001–0.03)	0.21 (0.10–0.35)	0.00 (1.00–1.00)	0.12 (0.09–0.18)
	ACE-CE-ACE	0.71 (0.56–0.84)	0.09 (0.04–0.20)	0.20 (0.14–0.26)	–	0.66 (0.50–0.85)	0.01 (0.001–0.02)	0.21 (0.10–0.35)	0.00 (1.00–1.00)	0.12 (0.09–0.18)
Objective sleep midpoint time and parent-reported sleep duration	ACE-ACE-ACE	0.04 (0.01–0.12)	0.91 (0.73–1.00)	0.05 (0.04–0.08)	0.00 (0.10–0.10)	0.00 (0.01–0.01)	0.01 (0.001–0.02)	0.21 (0.10–0.35)	0.66 (0.51–0.85)	0.12 (0.09–0.17)
	ACE-E-ACE	0.04 (0.01–0.12)	0.91 (0.73–1.00)	0.05 (0.04–0.08)	–	–	0.01 (0.001–0.02)	0.21 (0.10–0.35)	0.66 (0.51–0.85)	0.12 (0.09–0.17)
Objective sleep midpoint time variability and parent-reported sleep duration	ACE-ACE-ACE	0.10 (0.001–0.33)	0.71 (0.44–0.78)	0.19 (0.11–0.22)	0.00 (0.00–0.00)	0.00 (0.00–0.00)	0.00 (0.00–0.00)	0.21 (0.10–0.35)	0.66 (0.49–0.84)	0.13 (0.09–0.17)
	ACE-E-ACE	0.10 (0.001–0.24)	0.71 (0.49–0.82)	0.19 (0.12–0.27)	–	–	0.00 (0.00–0.00)	0.21 (0.10–0.35)	0.66 (0.48–0.83)	0.13 (0.09–0.18)

Sex and age were regressed out of variables prior to conducting models. Bolded models denote the best-fitting models. Models (e.g. ACE-ACE-ACE) are denoted to represent the genetic and environmental variance paths (retained) in the first phenotype, followed by the covariance paths shared (retained) between the first and second phenotype, and finally the genetic and environmental variance paths (retained) in the second phenotype after accounting for variance in the first phenotype. Estimates are provided with variance-based confidence intervals provided in parentheses and are based on standardized path estimates. Standardized path estimates for the second phenotype in each model are adjusted after accounting for the covariance between phenotypes. A11, additive genetic components for first phenotype; C11, shared environment component for first phenotype; E11, nonshared environment component for first phenotype. A22, C22, E22, residual additive genetic, shared environmental, and nonshared environmental components for second phenotype not shared with first phenotype, respectively.