Table 6.

Multiple hierarchical regression analysis predicting executive function at t2.

Model	Variables	Executive Function a
		β	t	p
Model 1	Age	−0.24	−0.96	0.347
	Sex	0.16	0.92	0.366
	Education	0.43	2.17	0.041
	Time difference t1–t2	0.13	0.76	0.458
	BDI	−0.14	−0.82	0.418
	Illness duration	0.08	0.38	0.710
Model 2	Age	−0.12	0.58	0.576
	Sex	0.35	1.89	0.074
	Education	0.41	2.26	0.036
	Time difference t1–t2	0.56	2.60	0.018
	BDI	0.38	1.66	0.113
	Illness duration	0.09	0.47	0.644
	Openness	−0.05	−0.32	0.753
	Conscientiousness	0.48	2.55	0.019
	Extraversion	−0.30	−1.44	0.166
	Agreeableness	−0.09	−0.51	0.616
	Neuroticism	−0.82	−3.30	0.004

Note. Model 1: R² = 0.38, R² corr. = 0.23, SE = 1.48. Model 2: R² = 0.65, R² corr. = 0.45, SE = 1.25. Significant p-values (p < 0.05) are written in bold. ^a Sum score of the Trail Making Test part B and the interference trial of J. Stroop’s Color and Word Interference Test.