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世界卫生组织(World Health Organization,WHO)估计全球有超过16亿人(约占世界人口的25%)存在不同程度贫血[1],其中大多数发生在西太平洋和东南亚地区[2],且学龄前儿童的贫血患病率最高,达47%[3]。贫血有很多种病因,铁缺乏症(i-ron deficiency,ID)一直被认为是世界范围内贫血最重要的原因[4]。我国儿童少年贫血患者的90%～95%属于缺铁性贫血(iron deficiency anemia,IDA)[5],我国儿童ID患病率显著高于
The World Health Organization (WHO) estimates that there are more than 1.6 billion people (about 25% of the world’s population) in the world with varying degrees of anemia [1], most of which occur in the Western Pacific and Southeast Asia [2] Pre-children have the highest prevalence of anemia, reaching 47% [3]. There are many causes of anemia. Iron deficiency (ID) has long been considered the most important cause of anemia worldwide [4]. 90% -95% of children and adolescents with anemia in China belong to iron deficiency anemia (IDA) [5]. The prevalence of ID in children in China is significantly higher than that of IDA