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本世纪随着科学技术的发展，人们对选择何种分娩方式才能提高人口素质，降低智能障碍儿的发病率持不同观点，一些人认为剖宫产新生儿脑供血，供氧量明显增高，智商高，而要求剖宫产。美国报道６０年代剖宫产率低于５％，８０年代上升为２０％。我国统计６０年代剖宫产率为１．
In this century, with the development of science and technology, people have different opinions on which mode of delivery to choose to improve population quality and reduce the incidence of children with intellectual disabilities. Some people think that cesarean newborn brain blood supply, oxygen supply increased significantly, High, while requiring cesarean section. The United States reported a cesarean delivery rate of less than 5% in the 1960s and a 20% increase in the 1980s. China’s statistics cesarean section rate in the 60s 1.