Table 5.

Multivariate analysis according to Enter Method: chronotype score taken as the dependent variable.

	Unstandardized coefficients		Standardized coefficients	t	Sig.	95.0% Confidence Interval for B
	B	Standard error	Beta			Lower bound	Upper bound
Age	0.497	0.236	0.204	2.104	0.038	0.028	0.966
Electronic devices use	1.034	0.473	0.230	2.185	0.031	0.095	1.973
Social phobia	−0.107	0.092	−0.112	−1.160	0.249	−0.291	0.076
Major depression	0.449	0.149	0.282	3.017	0.003	0.154	0.744
Separation anxiety	−0.281	0.194	−0.144	−1.446	0.151	−0.667	0.105
SDSC total score	0.169	0.055	0.273	3.052	0.003	0.059	0.279
Age	0.513	0.239	0.210	2.141	0.035	0.037	0.988
Electronic devices use	1.016	0.463	0.226	2.192	0.031	0.095	1.936
Social phobia	−0.111	0.088	−0.116	−1.269	0.208	−0.286	0.063
Major depression	0.207	0.149	0.130	1.384	0.170	−0.090	0.503
Separation anxiety	−0.330	0.187	−0.169	−1.766	0.081	−0.702	0.041
Disorders of initiating and maintaining sleep	0.530	0.156	0.312	3.406	0.001	0.221	0.839
Non-restorative sleep	0.226	0.179	0.111	1.265	0.209	−0.129	0.582
Sleep breathing disorders	1.072	0.385	0.261	2.784	0.007	0.307	1.837

SDSC: Sleep Disturbance Scale for Children.