缺铁性贫血是最常见的一种贫血,在小儿及妇女中尤为普遍,不仅在贫困地区和发展中国家如此,在发达国家中亦如此。如1976年印度发现1/22～6岁小儿血红蛋白(Hb)<110g/L者占35～50％,一般成人占10％,妇女占20％,妊妇占40％,晚期妊妇占57.4％。美国3月～3岁小儿中,Hb<100g/L者中,生活贫困者达40％,富裕阶层也占4～8％。1979～1982年我国曾组织全国十余个省市对27,000余名小儿进行了调查,初步发现小儿Hb<100g/L者平均为37.9％,城市占25～65％, Iron deficiency anemia is the most common form of anemia and is particularly prevalent in children and women, not only in poor areas and in developing countries but also in developed countries. For example, in 1976, India found that children aged 1/22 to 6 years old had hemoglobin (Hb) <110g / L, accounting for 35-50% of the total. Adults generally accounted for 10%, women accounted for 20%, pregnant women 40%, late pregnant women 57.4% . Among children aged 3 months to 3 years old in the United States, those with Hb <100g / L have 40% of the poor and 4% to 8% of the rich. From 1979 to 1982, China conducted a survey of more than 27,000 children in more than 10 provinces and cities nationwide. The preliminary findings showed that the average Hb in children <100g / L was 37.9% and that in urban areas was 25-65%