Table 2a.

Results of the linear regression analysis with the STAI and GDS-15 total score at T1 as dependent variable, and the presence of insomnia at T0 as independent variable.

Dependent variable →	T1 STAI total score				T1 GDS-15 total score
Independent variable ↓	B (SE)	β	95% CI	p-value	B (SE)	β	95% CI	p-value
Model 1:
(Constant)	63.67 (1.16)	–	–	–	2.39 (0.18)	–	–	–
T0 Insomnia	10.46 (2.42)	0.22	[5.71, 15.20]	<0.001	1.52 (0.38)	0.21	[0.78, 2.26]	<0.001
Model 2:
(Constant)	16.68 (2.70)	–	–	–	0.90 (0.18)	–	–	–
T0 insomnia	1.75 (1.81)	0.04	[−1.80, 5.30]	0.33	0.49 (0.31)	0.07	[−0.12, 1.10]	0.11
T0 dependent variable	0.76 (0.04)	0.70	[0.68, 0.84]	<0.001	0.75 (0.05)	0.61	[0.65, 0.85]	<0.001

B = regression coefficient, SE = standard error, β = standardized regression coefficient, 95% CI = 95% confidence interval