(b) *JNC VII classification of blood pressure

Category	Systolic blood pressure (SBP) mm Hg		Diastolic blood pressure (DBP) mm Hg
Normal	<120	and	<80
Prehypertension	120–139	or	80–89
Hypertension Stage 1	140–159	or	90–99
Hypertension Stage 2	≥160	or	≥100