PE is the primary outcome measure. PE is defined as blood pressure ≥90mmHg diastolic on two occasions ≥4 hours apart and proteinuria greater than 2+ on dipstick or greater than 300 mg in 24-hour urine collection or random protein- creatinine ratio ≥30 mg protein/mmol, developed in women greater than 20 weeks of gestation; or HELLP syndrome (hemolysis, serum LDH ≥600U/L, serum AST ≥70U/L, platelet count <100 × 109/L); or superimposed PE, defined as history of preexisting hypertension (diagnosed prepregnancy or before 20 weeks gestation) with new proteinuria. An adju- dication committee comprised of experts in perinatology will blindly adjudicate for the primary outcome.Secondary outcomes include maternal death, severe PE (PE with convulsion(s) or HELLP or delivery <34 weeks), abruptio placenta, preterm delivery, premature rupture of membranes, antenatal inpatient days, intrauterine growth restriction, perinatal mortality, spontaneous abortion, still- birth, neonatal death, and neonatal morbidity including retinopathy of prematurity, periventricular leukomalacia, early onset sepsis, necrotising enterocolitis, intraventricular hemorrhage, ventilation, need for O2 at 28 days, and length of stay in neonatal intensive care unit (NICU).
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