Definition of the outcomes
convulsions, blood loss, proteinuria, Eclampsia, Preeclampsia, mmol/L.Postpartum hemorrhage, GDM, diabetes
BLOOD LOSS, ECLAMPSIA, PREECLAMPSIA, GESTATIONAL HYPERTENSION, GDM, NEONATAL ASPHYXIA, GESTATIONAL HYPERTENSION, PREECLAMPSIA, DIABETES

Gestational hypertension, preeclampsia and eclampsia: gestational hypertension presents after 20 gestational weeks (blood pressure [BP] ≥ 140/90 mmHg), recovers within 12 weeks after delivery, and is with negative proteinuria. Preeclampsia is gestational hypertension associated with significant proteinuria. Eclampsia occurs when convulsions are associated with preeclampsia.GDM: diabetes occurs during pregnancy. It is diagnosed using a 75 g oral glucose tolerance test (OGTT). GDM can be diagnosed if the fasting glucose is > 5.1 mmol/L, or the level 1 h after the glucose challenge is > 10.0 mmol/L or the level 2 h is > 8.5 mmol/L.Postpartum hemorrhage: blood loss of more than 500mL following vaginal delivery or more than 1000mL following CS within 24 h.Neonatal asphyxia: Apgar 1 min ≤ 7.Macrosomia: fetal weight is over 4000 g.