Table 3.

Polychoric correlations between latent factor scores for Disrupted Sleep, Anxiety and Depression based on the correlated liability (Cholesky decomposition) null model. Males are above the diagonal shaded. The cross-twin cross-trait correlations (constrained equal within twin pairs) appear in bold.

	Sleep & Anxiety					Sleep & Depression
Cohort 1		1.	2.	3.	4.		1.	2.	3.	4.
	1. Twin 1 Sleep	1	0.52	0.16	0.17	1. Twin 1 Sleep	1	0.49	0.13	0.09
	2. Twin 1 Anxiety	0.55	1	0.17	0.44	2. Twin 1 Depression	0.58	1	0.09	0.31
	3. Twin 2 Sleep	0.33	0.27	1	0.52	3. Twin 2 Sleep	0.33	0.26	1	0.49
	4. Twin 2 Anxiety	0.27	0.40	0.55	1	4. Twin 2 Depression	0.26	0.35	0.58	1
Cohort 2		1.	2.	3.	4.		1.	2.	3.	4.
	1. Twin 1 Sleep	1	0.58	0.29	0.23	1. Twin 1 Sleep	1	0.51	0.29	0.17
	2. Twin 1 Anxiety	0.58	1	0.23	0.33	2. Twin 1 Depression	0.66	1	0.17	0.35
	3. Twin 2 Sleep	0.20	0.20	1	0.58	3. Twin 2 Sleep	0.20	0.17	1	0.51
	4. Twin 2 Anxiety	0.20	0.38	0.58	1	4. Twin 2 Depression	0.17	0.28	0.66	1