Table 1.

Classification of blood pressure for adults according to JNC-7

Classification	SBP (mmHg)	DBP (mmHg)
Normal	≤ 120	And ≤ 80
Prehypertension	120-139	Or 80-89
Stage 1 hypertension	140-159	Or 90-99
Stage 2 hypertension	≥ 160	Or ≥ 100

SBP: Systolic blood pressure; DBP: Diastolic blood pressure.