Table 4.

Multivariate-adjusted logistic regression analysis indicating odds ratios (ORs) for the presence of hypertension associated with short/long sleep duration among black and white participants.

Variables		Short sleep (<6 hours)				Long sleep (>8 hours)
	P	OR	95% CI		P	OR	95% CI
			Lower	Upper			Lower	Upper
Sleep duration∗race/ethnicity (categorized)	0.001	0.95	0.71	1.28	<0.001	1.03	0.74	1.45
Age	<0.001	1.05	1.02	1.21	<0.001	1.04	1.01	1.09
Sex (reference: male)	0.001	0.87	0.80	0.96	0.01	0.89	0.81	0.97
Income (reference: <$35,000)	0.004	0.90	0.82	1.00	0.17	0.94	0.85	1.03
Education (reference: high school)	0.001	1.21*	1.05	1.39	0.08	1.13*	0.99	1.30
Obesity (reference: nonobese)	<0.001	2.38*	2.17	2.62	<0.001	2.45*	2.23	2.69
Alcohol (reference: never)	0.34	1.07	0.93	1.22	0.68	1.03	0.91	1.16
Smoking (reference: never)	0.001	1.12*	1.02	1.22	<0.001	1.17*	1.07	1.28
Activity (reference: no physical activity)	0.74	1.02	0.93	1.12	0.62	1.02	0.93	1.13
Emotional distress (reference: None)	<0.001	1.83*	1.35	2.48	<0.001	1.97*	1.43	2.70
Diabetes (reference: none)	<0.001	3.15*	2.69	3.70	<0.001	3.41*	2.95	3.93
Coronary heart disease (reference: none)	<0.001	2.06*	1.76	2.42	<0.001	2.03*	1.74	2.36
Stroke (reference: none)	<0.001	2.09*	1.59	2.74	<0.001	1.97*	1.48	2.62

*Variables contributing significantly to the relationship.