贫血是中小学生中较为常见的疾病,大量研究表明,它不仅影响生长发育,而且对智力、性格、行为和免疫功能均可造成不同程度的损害[1-3]。血红蛋白(Hb)是一种结合蛋白质,由球蛋白质和含铁血红素结合而成,功能是运输氧气和二氧化碳,并对血液酸碱起缓冲作用。Hb浓度是鉴定人体营养状况的主 Anemia is a more common disease among primary and secondary school students. A large number of studies have shown that it not only affects growth and development, but also causes various degrees of damage to intelligence, personality, behavior and immune function [1-3]. Hemoglobin (Hb) is a binding protein that combines globulin and heme. It functions as a transporter of oxygen and carbon dioxide and buffers blood and acids. Hb concentration is the identification of human nutrition status of the Lord