Results: The incidence rates of OC, fetal distress,perinatal death,and oligohydramnios in women with postterm pregnancy were higher than those in women with term pregnancy.

• 结果过期妊娠的手术产率、产后出血、胎儿窘迫、新生儿窒息、围生儿死亡、羊水过少的发生率均高于足月妊娠分娩者。