Table 1

Operational definitions of hypertensive disorders of pregnancy

Hypertensive disorders of pregnancyDiagnostic criteria
Gestational hypertension
  • Gestational age: 20 weeks or more.

  • Diastolic blood pressure: 90–109 mm Hg.

  • Protein in urine: nil.

  • Absence of all three danger signs—severe headache, blurred vision and upper abdominal pain.

Pre-eclampsia
  • Gestational age: 20 weeks or more.

  • Diastolic blood pressure: 90–109 mm Hg.

  • Protein in urine: present.

  • Absence of all three danger signs—severe headache, blurred vision and upper abdominal pain.

Severe pre-eclampsiaDefinition#1:
  • Gestational age: 20 weeks or more.

  • Diastolic blood pressure 90–109 mm Hg.

  • Protein in urine: present.

  • Presence of at least one of the three danger signs—severe headache, blurred vision and upper abdominal pain.

Definition#2:
  • Gestational age: 20 weeks or more.

  • Diastolic blood pressure: 110 mm Hg or more.

  • Protein in urine: present.

Eclampsia
  • Gestational age: 20 weeks or more.

  • Diastolic blood pressure: 90 mm Hg or more.

  • Convulsion.