Table 1 Diagnostic criteria used for the study on determinants of pre-eclampsia among women attending hospitals in Omo district, Southern Ethiopia, 2018

The onset of symptoms after 20 weeks’ gestation with remission by 6–12 weeks postpartum^*

Mild pre-eclampsia:

 • Hypertension (Systolic Blood Pressure(SBP) ≥ 140 mmHg or Diastolic Blood Pressure(DBP) ≥ 90 mmHg), may be superimposed on chronic hypertension

 • Proteinuria (proteinuria ≥300 mg/24 h, or significant increase from baseline)

Severe pre-eclampsia if one or more of the following:

 • Sustained Systolic Blood Pressure(SBP) ≥ 160 mmHg or Diastolic Blood Pressure(DPB) ≥ 110 mmHg (measured twice, at least 6 h apart)

 • Evidence of other end-organ damage

  • Deteriorating renal function including nephrotic range proteinuria ≥3 g/24 h or 3+ on urine dipstick or sudden oliguria, especially with elevated creatinine^†

  • Central Nervous System(CNS) disturbance (altered vision, headache)

  • Pulmonary edema (3% of patients)

  • Liver dysfunction

  • Epigastric/right upper quadrant pain (stretching of hepatic capsule)

  • Thrombocytopenia (15–30% of patients)

  • HELLP syndrome is characterized by Hemolysis Elevated Liver enzymes and Low platelet count which may occur without proteinuria.

  • Evidence of fetal compromise (Intrauterine Growth Restriction-IUGR, oligohydramnios, non-reasoning fetal testing)