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Optimal blood
pressure
(target value)
Normal blood
pressure
Normal systolic value
Mild hypertension
Moderate hypertension
Severe hypertension
80 85
90 100 110
120
130
140
160
180
Systolic blood pressure
(mmHg)
Diastolic
blood
pressure
(mmHg)
According to the blood pressure classification by the WHO/ISH* (revised in 1999)
* ISH: International Society of Hypertension
Classification of Blood Pressure by the World Health
Organization
The World Health Organization (WHO) and the International
Society of Hypertension (ISH) developed the Blood Pressure
Classification shown in the Figure below. (This classification is
made based on the blood pressure values measured in a sitting
position, in the outpatient department of hospital.)
* There is no universally accepted definition of hypotension. However,
those having the systolic pressure below 100 mmHg are assumed as
hypotension.
Blood Pressure Classification
OMRON-R5 (Eng) 11/27/03 10:48 AM Page 19