Table 2.

Standardized coefficients of insomnia symptoms (DIMS), demographic, and clinical variables from the latent variable model

	Daytime Symptoms**			Sleepiness			Functional Performance**
	Coeff.	SE	P	Coeff.	SE	P	Coeff.	SE	P
DIMS (yes vs. no)	0.98	0.29	0.001	0.18	0.07	0.013	−0.45	0.13	0.001
Demographic Variables
Age	−0.25	0.13	0.058	0.07	0.10	0.519	−0.28	0.10	0.006
Gender (male vs. female)	−0.38	0.08	< 0.001	−0.03	0.08	0.669	0.46	0.07	< 0.001
Race (white vs. minority)	0.13	0.09	0.158	−0.10	0.09	0.257	0.20	0.08	0.020
Clinical Variables
Left ventricular ej. fraction %	−0.02	0.08	0.788	0.02	0.08	0.791	−0.04	0.07	0.632
NYHA classification	0.19	0.08	0.022	0.08	0.08	0.323	−0.40	0.08	< 0.001
Body mass index	−0.19	0.09	0.043	0.03	0.09	0.719	< 0.01	0.08	0.994
Charlson Comorbidity Index	0.13	0.09	0.126	0.11	0.08	0.184	−0.46	0.10	< 0.001
Respiratory disturbance index	0.04	0.09	0.602	0.15	0.08	0.063	−0.08	0.08	0.341
%Time at O2 saturation < 90%	−0.06	0.08	0.420	0.06	0.08	0.462	−0.08	0.07	0.266
Interaction Effects
Age × DIMS	−0.60	0.29	0.041	-	-	-	-	-	-
Charlson Comorbidity Index × DIMS	-	-	-	-	-	-	0.33	0.15	0.025

^**indicates effects on the latent variables; Goodness of fit Test: CFI = 0.970/RMSEA = 0.041