Table 3.

Multinomial logistic regression analysis for the sleep duration on weekdays.

SSBs*	<8.5 hours			≥8.5 to <9.5 h			≥9.5 h
	OR	(95% CI)	P-value	OR	(95% CI)	P-value	OR
Model 1 (simple model)†
Low intake	1.00			1.00			1.00
High intake	1.72	(1.37, 2.15)	<0.001	1.27	(1.01, 1.58)	0.040	1.00
Model 2 (full model)†
Low intake	1.00			1.00			1.00
High intake	1.67	(1.23, 2.26)	0.002	1.08	(0.83, 1.41)	0.552	1.00

^*Model 1 adjusted for survey, age, gender; model 2 adjusted for age, gender, BMI categories, breakfast eating, physical activity, paternal education, maternal education, parental marital status, paternal employed status, and maternal employed status.

^†Respondents were divided into two groups according to SSBs consumption frequency. The low intake group (<2 times/week in the 2012 survey and <4.7 times/week in the 2013–2016 survey) and the high intake group (≥ 2 times/week in the 2012 survey and ≥ 4.7 times/week in the 2013-2016 survey).