Table 2 Definitions of elevated blood pressure and hypertension in children and adults [19, 20]

Adults and children ≥ 13 years of age

 Elevated blood pressure

Systolic BP ≥ 120 and diastolic BP ˂ 80 mm Hg

 Stage I hypertension

Systolic BP ≥ 130 and diastolic BP ≥ 80 mm Hg

 Stage II hypertension

Systolic BP ≥ 140 and diastolic BP ≥ 90 mm Hg

Children ˂ 13 years of age

 Elevated blood pressure

Systolic and/ or diastolic BP ≥ 90^th percentile for age, sex and height

 Stage I hypertension

Systolic and/ or diastolic BP ≥ 95^th percentile for age, sex and height

 Stage II hypertension

Systolic and/ or diastolic BP ≥ 95^th percentile + 12 mm Hg