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铁缺乏症是小儿最常见的营养缺乏性疾病,在全世界儿童中有广泛的流行。据美国七十年代调查,6～24月龄的儿童中缺铁性贫血的发生率为3～24％。缺铁而无贫血的发生率为29～68％。在社会经济最差的群体里,缺铁性贫血的发生率在50％以上,铁缺乏症几乎是100％。估计全世界约有5亿以上人口患铁缺乏症。我国小儿贫血的调查结果,上海高达82.9％,而云南、内蒙等地为18.0～19.7％。由于检查方法不统一,诊断标准不统一,对象的种族构成、饮食习惯及社会经济不同,各地报告的发生率差异很大。
Iron deficiency is the most common nutritional deficiency disorder in children and is prevalent in children worldwide. According to the United States in the seventies survey, children aged 6 to 24 months, the incidence of iron deficiency anemia is 3 to 24%. The incidence of iron deficiency without anemia was 29 to 68%. In the worst socio-economic groups, the incidence of iron-deficiency anemia is over 50% and iron deficiency is almost 100%. It is estimated that more than 500 million people in the world suffer from iron deficiency syndrome. The survey results of pediatric anemia in China show up to 82.9% in Shanghai and 18.0-19.7% in Yunnan and Inner Mongolia. Due to inconsistent examination methods, diagnostic criteria are not uniform, the racial composition of the object, eating habits and socio-economic differences in the incidence of different reports around the very different.