This classification equates with that of the European Society of Hypertension (ESH) and that of World Health Organization/ International Society of Hypertension (WHO/ISH), and is based on clinic blood pressure values. If systolic blood pressure and diastolic blood pressure fall into different categories, the higher value should be taken for classification.
| Category | Systolic blood pressure (mmHg) | Diastolic blood pressure (mmHg) |
| Optimal blood pressure | <120 | <80 |
| Normal blood pressure | <130 | <85 |
| High-normal blood pressure | 130-139 | 85-89 |
| 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 (Grade 1) | 140-159 | <90 |
| Isolated systolic hypertension (Grade 2) | >/= 160 | <90 |
References:
- Duerden MG; British Hypertension Society. Guidelines from the British Hypertension Society: BHS is set to bankrupt NHS. BMJ. 2004 Sep 4;329(7465):569-70 [Medline]
- Williams B, Poulter NR, Brown MJ, Davis M, McInnes GT, Potter JF, Sever PS, Thom SM; BHS guidelines working party, for the British Hypertension Society. British Hypertension Society guidelines for hypertension management 2004 (BHS-IV): summary. BMJ. 2004 Mar 13;328(7440):634-40. [Medline]
Created: Abr 13, 2005
