Table 6. Estimates Derived From the AE Correlated Factors Solutions.

	a2		e2
Measure	Estimate	95% CI	Estimate	95% CI
Note. PSQI = Pittsburgh Sleep Quality Inventory; ISI = Insomnia Severity Index; a2 = additive genetic variance component; e2 = nonshared environmental variance component; rA = additive genetic correlation; rE = nonshared environmental correlation; bivariate heritability = proportion of phenotypic correlation due to additive genetic factors; bivariate nonshared environment = proportion of phenotypic correlation due to nonshared environmental factors.
Variance components estimates
PSQI	0.41	[0.37, 0.45]	0.59	[0.55, 0.63]
ISI	0.41	[0.41, 0.45]	0.59	[0.55, 0.63]
Paranoia	0.51	[0.48, 0.54]	0.49	[0.46, 0.52]
Hallucinations	0.45	[0.41, 0.48]	0.55	[0.52, 0.59]
Cognitive Disorganization	0.44	[0.41, 0.48]	0.56	[0.52, 0.59]
	rA		rE
Etiological correlations
Paranoia—PSQI	0.52	[0.46, 0.58]	0.22	[0.17, 0.27]
Paranoia—ISI	0.55	[0.48, 0.61]	0.19	[0.14, 0.24]
Hallucinations—PSQI	0.48	[0.41, 0.55]	0.20	[0.16, 0.25]
Hallucinations—ISI	0.54	[0.48, 0.61]	0.24	[0.19, 0.28]
Cognitive Disorganization—PSQI	0.56	[0.56, 0.63]	0.28	[0.24, 0.33]
Cognitive Disorganization—ISI	0.60	[0.60, 0.67]	0.28	[0.23, 0.32]
	Bivariate heritability		Bivariate nonshared environment
Bivariate heritability and environment
Paranoia—PSQI	0.67	[0.60, 0.74]	0.33	[0.26, 0.40]
Paranoia—ISI	0.71	[0.64, 0.78]	0.29	[0.22, 0.36]
Hallucinations—PSQI	0.64	[0.56, 0.72]	0.36	[0.28, 0.44]
Hallucinations—ISI	0.63	[0.56, 0.71]	0.37	[0.29, 0.44]
Cognitive Disorganization—PSQI	0.60	[0.53, 0.67]	0.40	[0.40, 0.47]
Cognitive Disorganization—ISI	0.62	[0.55, 0.68]	0.38	[0.32, 0.45]