Methods A total of 1274 infants born after IVF-ET were reviewed . The neonatal outcome was evaluated based on gestational weeks , body weight , congenital malformations , manner of spermatization , maternal age and multiple gestation .

方法对我中心经IVF-ET治疗分娩的1274个新生儿结局进行回顾性分析，探讨新生儿出生孕周、体质量、受精方式、母亲年龄、胎数与先天畸形的关系。