Variables included in statistics
PPH, prelabour rupture, GDM, thrombophilia, uterine myoma
PLACENTA PRAEVIA, POSTPARTUM HEMORRHAGE, GESTATIONAL DIABETES MELLITUS, GDM, IMMUNE SYSTEM DISORDER, MISCARRIAGES, POLYHYDRAMNIOS, HYPERTENSIVE DISORDER, INTRAUTERINE INFECTION, PLACENTAL ABRUPTION, INTRAHEPATIC CHOLESTASIS OF PREGNANCY
The study team completed all statistical data by double-checking. The risk factors for postpartum hemorrhage in twin births were established by reading the literature and team discussion and included the following: (1) general information: maternal age, number of miscarriages, gestational weeks at delivery, prepregnancy body mass index (BMI), type of conception, and type of chorionic membrane; (2) prenatal factors: platelet count (PLT), fibrinogen (FIB), and albumin levels (within three days before delivery). gestational diabetes mellitus (GDM), hypertensive disorders of pregnancy (HDP), intrahepatic cholestasis of pregnancy (ICP), immune system disorders and thrombophilia, uterine myoma, prelabour rupture of membranes, polyhydramnios, placental abruption, and placenta praevia; (3) previous factors: number of previous cesarean deliveries, number of previous vaginal deliveries, and history of previous PPH; (4) delivery factors: surgeon’s seniority, intrauterine infection, mode of delivery, and sum of neonatal weights.