Table 3.

The classification of BP and hypertension

	Category	SBP, mm Hg		DBP, mm Hg
Normal BP		<120	and	<80
Prehypertension	stage 1	120–129	or	80–84
	stage 2	130–139	or	85 – 89
Hypertension	stage 1	140 – 159	or	90 – 99
	stage 2	160	or	100
Isolated systolic hypertension		140	and	<90