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近几十年以来,由于工业生产的发展,医疗卫生条件的改善,我国人口死亡率不断下降,平均寿命延长,人民体质增强。但人们不能不注意到随着工业发展特别是化学工业的发展又给人民健康带来的不良影响。为提高人口素质,保证人口优生,对先天性疾患的研究已引起各方面的关注。据报道世界上先天缺陷所致新生儿死亡率是新生儿死亡的14～20％,在美国为婴儿死因的第二位。北京市区1951～1955年人口统计,新生儿死因中畸形居末
In recent decades, due to the development of industrial production and the improvement of medical and health conditions, China’s population mortality rate has continued to decline, average life expectancy has been extended, and the people’s physique has increased. However, people cannot but notice the adverse effects on the health of the people as industrial development, especially the development of the chemical industry. In order to improve the quality of the population and ensure a better life for the population, the study of congenital disorders has attracted attention in various fields. It is reported that the newborn mortality caused by congenital defects in the world is 14 to 20% of the deaths of newborns, and the second in the United States for the death of infants. The demographic statistics of urban areas in Beijing from 1951 to 1955.