Calvo E B, Gnazzo N
Centro de Estudios Sobre Nutrición Infantil, Buenos Aires, Argentina.
Am J Clin Nutr. 1990 Sep;52(3):534-40. doi: 10.1093/ajcn/52.3.534.
Argentina has been largely considered as having an adequate diet in terms of iron availability. However, children aged 9-24 mo do not meet requirements from their regular diet. The aim of this study was to assess the incidence of iron deficiency in a representative sample of children living in Greater Buenos Aires. Hematologic indicators were measured in venous blood from 384 children. Weighted incidence of anemia was 46.7%. Mean corpuscular volume was less than 73 fL in 28.2% of subjects, free erythrocyte protoporphyrin was greater than 1.77 mumol/L erythrocytes in 57.1%, and serum ferritin was less than 12 micrograms/L in 60.2%.incidence of two or three abnormal values for iron status indicators was 46.1%. This extremely high incidence of anemia is associated with low iron intakes (5.6 +/- 3.5 mg/d means +/- SD), early introduction of cow milk, and low consumption of iron-fortified foods and iron supplements.
就铁的可获取性而言，阿根廷在很大程度上被认为拥有充足的饮食。然而，9至24个月大的儿童无法通过日常饮食满足需求。本研究的目的是评估居住在大布宜诺斯艾利斯的具有代表性的儿童样本中铁缺乏症的发生率。对384名儿童的静脉血进行了血液学指标检测。贫血的加权发生率为46.7%。28.2%的受试者平均红细胞体积小于73 fL，57.1%的受试者游离红细胞原卟啉大于1.77 μmol/L红细胞，60.2%的受试者血清铁蛋白小于12 μg/L。铁状态指标出现两项或三项异常值的发生率为46.1%。这种极高的贫血发生率与铁摄入量低（平均5.6±3.5 mg/d，均值±标准差）、过早引入牛奶以及铁强化食品和铁补充剂的低消费量有关。
