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婴儿时期是人生中脆弱的阶段,稍有不慎就可能受到伤害甚至死亡。每年究竟有多少婴儿死去?科学家用婴儿死亡率来表示,指的是婴儿出生后一岁之前死亡人数同出生人数的比率。一般以年度为计算单位,以千分比表示。根据2011年修订的联合国世界人口展望报告,世界婴儿五年内每年平均死亡率为49.4‰。2012年9月17日,在国务院新闻办公室举行新闻发布会上,卫生部部长陈竺提供的数据显示,我
Babyhood is a fragile stage in your life, and you may be harmed or even killed by some slightest mistake. How many infants do you die each year? Scientists use infant mortality to refer to the ratio of the number of deaths before birth to the number of births. Generally the annual calculation unit, expressed in thousands of points. According to the 2011 United Nations World Population Prospects Report revised in 2011, the average annual infant mortality rate in the five years to 49.4 ‰. On September 17, 2012, at a press conference held by the State Council Information Office, the data provided by Chen Zhu, minister of health, showed that I