Table 4.

Odds ratios for the prevalence of hypertension according to sleep duration category

Prevalence *	Sleep duration (hours)
	≤5	6	7	8	≥9
JNC 7	1.864(1.446-2.403)	0.973(0.785-1.206)	1.00 (reference)	0.947(0.752-1.193)	0.954(0.692-1.315)
JNC 8	1.908(1.483-2.456)	1.009(0.811-1.255)	1.00 (reference)	0.971(0.776-1.215)	0.988(0.708-1.379)

*Prevalence, prevalence of hypertension; JNC 7 included prevalence of hypertension according to JNC 7 guidelines and the subjects taking antihypertensive medication; JNC 8 included prevalence of hypertension according to JNC 8 guidelines and the subjects taking antihypertensive medication.

JNC, Joint National Committee.