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Table 1 The classification of blood pressure and hypertension

From: 2013 Korean Society of Hypertension guidelines for the management of hypertension: part I–epidemiology and diagnosis of hypertension

Category   Systolic blood pressure (mm Hg)   Diastolic blood pressure (mm Hg)
Normal blood presssurea   <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
  1. aBlood pressure with minimal risk for cardiovascular events.