A Closer Look at Blood Pressure Blood Pressure Classification
Level Blood Pressure Systolic Diastolic Normal [less than or [less than or equal to] 120 equal to] 80 mm Hg mm Hg Pre-hypertension 120--139 mm 80--99 mm Hg Hg Stage 1 Hypertension 140-159 mm 90-99 mm Hg Hg Stage 2 [greater than or [greater than or Hypertension equal to] 160 equal to] 100 mm Hg mm Hg Source: U.S.
Blood pressure classification
was significantly associated with gender and age group, in that those classified as hypertensive were male and in the older ages groups (p<0.05; Table 2).
To provide known group validity for the scale, the mean self-efficacy scores of patients with controlled blood pressure were compared with that of patients with uncontrolled blood pressure using JNC-7 blood pressure classification
Classification of Blood Pressure for Adults Blood Pressure 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 [greater than or [greater than or equal to] 160 or equal to] 100 SBP = systolic blood pressure; DBP = diastolic blood pressure Source: DHHS, 2004.
Changes in Blood Pressure Classification
JNC 6 Category JNC 7 Category SBP/DBP Optimal < 120/80 [right arrow] Normal Normal 120-129/80-84 [right arrow] PreHypypertension Borderline 130-139/85-89 [right arrow] Hypertension > or = 140/90 [right arrow] Hypertension Stage 1 140-159/90-99 [right arrow] Stage 1 Stage 2 160-179/100-109 [right arrow] Stage 3 Stage 2 > or = 180/110 [right arrow] DBP, Diastolic blood pressure; JNC, Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure; SBP, Systolic blood pressure Sources: The Sixth Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure, Arch Intern Med 1997; 157: 2413-46.