Table 3.

Linear regression analysis for PSQI associated with STAI and SDS in students, [β (95% CI)]

		STAI		SDS
		β(95% CI)	P value	β(95% CI)	P value
PSQI	Unadjusted	2.51 (2.22,2.81)	<0.001	1.40 (1.21,1.59)	<0.001
	Adjusted 1	1.51 (1.16,1.17)	<0.001	0.88 (0.65,1.11)	<0.001
	Adjusted 2	1.48 (1.12,1.83)	<0.001	0.89 (0.66,1.12)	<0.001

β beta coefficient, CI confidence interval, PSQI Pittsburgh Sleep Quality Index, STAI State-Trait Anxiety Inventory, SDS Self-rating Depression Scale

Adjusted 1: Adjusted for gender, age

Adjusted 2: Adjusted for gender, age, major, ethnicity, only child, birthplace, closest relationship, education of closest relationship, education of mother, education of father, job of closest relationship, job of mother, job of father