Table 1 Classifications of hypertension

Optimal

<120

<80

Normal

<130

<85

High normal

130-139

85-89

Hypertension

Grade 1 Hypertension (mild)

140-159

90-99

Grade 2 Hypertension (moderate)

160-179

100-109

Grade 3 Hypertension (severe)

≥180

≥110

Isolated systolic/diastolic hypertension

Grade 1

140-159

≥90

Grade 2

≥160

≥100