The labor process in control group is longer and the natural labor rate is lower. Also, their helping labor and operation rate were higher and the newborn Apgar score was lower with certain degree of anoxia.

• 而对照组病人产程相对延长 ,自然分娩率降低 ,助产和手术率高 ,新生儿Apgar评分低 ,存在新生儿缺氧情况。