British Hypertension Society classification of blood pressure levels (BHS-IV)
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Category
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Systolic blood pressure (mmHg)
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Diastolic blood pressure (mmHg)
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Optimal blood pressure
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<120
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<80
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Normal blood pressure
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<130
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<85
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High-normal blood pressure
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130-139
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85-89
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Grade 1 hypertension (mild)
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140-159
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90-99
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Grade 2 hypertension (moderate)
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160-179
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100-109
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Grade 3 hypertension (severe)
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>/= 180
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>/= 110
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Isolated systolic hypertension (Grade 1)
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140-159
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<90
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Isolated systolic hypertension (Grade 2)
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>/= 160
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<90
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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.
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: April 11, 2005
Last Modified: April 11, 2005
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