早产是新生儿死亡主要因素之一，为探讨早产发生的相关因素，本文分析我院1993～1997年62例，报告于下1临床资料1．1病例：62例，孕58～37周。每5～6min。一次宫缩，每次宫缩持续≥30s，伴宫预热缩以及进行性宫口扩张或胎膜已破，其对照组为同期足月分娩者，100例12早产与妊娠 Premature delivery is one of the major causes of neonatal death. To explore the related factors of preterm birth, we analyzed 62 cases from 1993 to 1997 in our hospital and reported the following clinical data of 1.1 cases: 62 cases and 58 to 37 weeks of gestation. Every 5 ~ 6min. A tocolysis, each uterine contractions continued for ≥ 30s, with preheating of the uterus and progressive cervix or fetal membranes have been broken, the control group for the same period of full-term delivery, 100 cases of 12 premature delivery and pregnancy