| Category | Systolic Pressure (mmHg) | Diastolic Pressure (mmHg) |
|---|---|---|
| Normal Blood Pressure | <120 | <80 |
| High Normal | 120~139 | 80~89 |
| Hypertension | ≥140 | ≥90 |
| Grade 1 Hypertension (Mild) | 140~159 | 90~99 |
| Grade 2 Hypertension (Moderate) | 160~179 | 100~109 |
| Grade 3 Hypertension (Severe) | ≥180 | ≥110 |
| Isolated Systolic Hypertension | ≥140 | <90 |
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