Liyang Zhang, Jiapo Li, Yuanyuan Li ,Yue Hou, Ruochen Wang, Chong Qiao*
Iatrogenic preterm birth is now becoming a more and more prominent issue in modern obstetrics. Compared with spontaneous preterm birth, it is more predictable and usually results in better prognosis. Meanwhile, patients with scarred uterus in China are increasing rapidly. Predicting iatrogenic preterm birth in women with scarred uterus can help referral, thus improving the prognosis of both the pregnant and the infant.