Table 2.

Multinomial Logistic Regression Models Predicting Self-Reported Sleep Duration, Adults aged 25–84 in the National Health Interview Survey, 2004–2018, n = 356,048.

table	≤6 vs. 7-9									≥10 vs. 7-9
	Model 1		Model 2		Model 3		Model 1				Model 2		Model 3
	b	p	b	p	b	p	b		p		b	p	b	p
Race/Ethnicity
Non-Hispanic White (Ref)
Non-Hispanic Black	0.37	**	0.79	**	0.83	**	0.51		**		0.46	**	0.45	**
Hispanic	0.00		0.35	**	0.34	**	−0.09				0.29	*	0.19
Educational Attainment
Less than High School	0.35	**	0.67	**	0.33	**	1.49		**		1.65	**	0.66	**
High School	0.29	**	0.43	**	0.27	**	1.03		**		1.03	**	0.47	**
Some College	0.36	**	0.40	**	0.28	**	0.74		**		0.73	**	0.34	**
College+ (Ref)
Race/Ethnicity X Education
Black X Less than High School			−0.85	**	−0.82	**					−0.28	*	−0.25	*
Black X Some College			−0.68	**	−0.67	**					0.05		0.00
Black X High School			−0.35	**	−0.35	**					0.14		0.13
Hispanic X Less than High School			−0.82	**	−0.66	**					−0.64	**	−0.39	**
Hispanic X High School			−0.51	**	−0.45	**					−0.37	**	−0.27
Hispanic X Some College			−0.18	**	−0.14	**					−0.34	*	−0.27
Constant	−2.05	**	−2.18	**	−1.94	**	−3.37		**		−3.42	**	−3.17	**

*p < 0.05 **p < 0.01.

Source: National Health Interview Survey, 2004–2018.

Model 1 and Model 2 adjust for Demographic Characteristics: Age, Age², Region, Marital Status, Number of Children, Nativity, and Survey Year. Model 3 additionally adjusts for Health and Socioeconomic Characteristics: Smoking status, Alcohol consumption, Body Mass Index, Self-reported Health, Kessler-6 Scale, Household income, Occupational class, Hours worked per week, and Home Ownership. Full results presented in Supplemental Table 2.