Table 1.

Classification of Hypertension2

Age, yHigh
Normal,
mm Hg*
Significant
Hypertension,
mm Hg
Severe
Hypertension,
mm Hg
6–9
 Systolic111 –121122 –129>129 (129)§
 Diastolic70 –7770 –85>85 (84)
10–12
 Systolic117 –125126 –133>133 (134)
 Diastolic75 –8182 –89>89 (89)
13–15
 Systolic124 –135136 –143>143 (149)
 Diastolic77 –8586 –91>91 (94)
16–18
 Systolic127 –141142 –149>149 (159)
 Diastolic80 –9192 –97>97 (99)
>18
 SystolicNot given[140 –179]> (179)
 Diastolic[90 –109]> (109)
  • * 90th to 94th percentile for age, boys and girls combined.2

  • 95th to 98th percentile for age, boys and girls combined.2

  • 99th percentile for age, boys and girls combined.2

  • § The values in parentheses are those used for the classification of severe hypertension by the 26th Bethesda Conference on cardiovascular disease and athletic participation.1 See text for explanation.

  • Because the Second Task Force did not discuss youth older than 18 years, the values in brackets are those for mild and moderate hypertension given by the 26th Bethesda Conference.1