Table 7.

Comparison of adjusted odds ratios (95% CI) of 10-item CES-D scale and 11-item CES-D scale based on multivariate analyses of the association of insomnia subtypes with depression in cross-sectional and longitudinal study

Insomnia Subtypes	10-item CES-D Scale				11-item CES-D Scale*
	Cut-off point = 6		Cut-off point = 7		Cut-off point = 7
	Cross-sectional study
	aOR#	95%CI	aOR	95%CI	aOR	95%CI
DIS	1.819	(1.327 to 2.493)	1.721	(1.214 to 2.439)	2.020	(1.455 to 2.805)
EMA	1.262	(0.910 to 1.748)	1.476	(1.030 to 2.114)	1.441	(1.025 to 2.026)
DMS	0.874	(0.669 to 1.142)	0.899	(0.662 to 1220)	0.819	(0.613 to 1.094)
	Longitudinal study
	aOR	95%CI	aOR	95%CI	aOR	95%CI
DIS	1.659	(1.047 to 2.629)	1.444	(0.936 to 2.227)	1.592	(1.012 to 2.504)
EMA	1.242	(0.773 to 1.993)	1.153	(0.735 to 1.808)	1.070	(0.664 to 1.723)
DMS	1.304	(0.916 to 1.854)	1.263	(0.905 To 1.763)	1.215	(0.860 to 1.716)

^*Results were taken from Table 5 for the cross-sectional study and from Table 6 for the longitudinal study.

^#aOR: adjusted odds ratio and 95%CI; 95% confidence interval. Logistic regression analysis was conducted by controlling for age, gender, educational history, place of residence, sleep duration, excessive day time sleepiness, discomfort feeling in the legs, subjective sleep sufficiency, psychological stress, self-rated health, and activities of daily living. DIS refers to difficulty initiating sleep; EMA, early morning awakening; DMS, difficulty maintaining sleep.