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近20年来国外剖宫产率不断上升,美国1988年的剖宫产率达到高峰,为24.7％,是20世纪60年代的五倍,随后剖宫产率趋于稳定,1991年降至23.5％。而我国的剖宫产率由20世纪50年代的1～2％升至1988年的22％,个别单位达到40％以上。已有研究表明,剖宫产率升高在一定程度上降低了围产儿的死亡率,但围产儿死亡率的进一步降低,需要围产医学的整体发展,不能仅仅依靠剖宫产来解决。剖宫产对母儿的不良影响
In the past 20 years, the rate of cesarean section abroad has been on the rise. The rate of cesarean section in the United States reached a peak of 24.7% in 1988, which was five times that of the 1960s. The rate of cesarean section tended to be stable, down to 23.5% . However, the rate of cesarean section in China rose from 1-2% in the 1950s to 22% in 1988, with individual units reaching over 40%. Studies have shown that increased cesarean section rate has reduced perinatal mortality to a certain extent. However, the further reduction of perinatal mortality rate requires the development of perinatal medicine and can not be solved by cesarean section alone. Cesarean section on the adverse effects of maternal and child