NRP1 and hematocrit: According to the multiple regression analysis, the independent risk factors for PE were the presence of HT (OR: 9.34, 95% CI: 1.02–85.48, p: 0.04) and maternal plasma NRP-1 levels (OR: 1.003 per unit, 95% CI: 1.000–1.005, p: 0.04).