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从1900年以来,美国人口的死亡率稳步下降,但以儿童青少年(1～19岁)下降幅度最大。据国家卫生统计中心(NCHS)最近报告,美国在降低儿童青少年死亡率方面,虽然取得一定成就,但其下降幅度和目前(1983～85年)状况,
Mortality rates in the United States have steadily declined since 1900, but the largest declines have been in children and adolescents (1 to 19 years of age). According to a recent report by the National Center for Health Statistics (NCHS), the United States has made some achievements in reducing the child and adolescent mortality rate. However, the rate of decline and the present (1983-85)