Abstract: Objective  To evaluate the physical development and health status of children with iron deficiency anemia(IDA) aged 612 years old in Lanzhou and Dongxiang. Methods  396 children aged 612 years old were enrolled from four primary schools in Lanzhou and Dongxiang by stratified random sampling during October in 2015. Measurements of physical development， venous blood collection(including hemoglobin， mean corpuscular volume， mean corpuscular hemoglobin concentration， mean hemoglobin， serum iron， serum ferritin and other indicators)， and questionnaires were conducted.Results  The height and weight of IDA children were lower than that of the same age in normal children (P<0.05).The prevalence rate of dental caries was higher than that of normal children (P<0.05). Iron deficiency anemia in children with respiratory diseases， gastrointestinal diseases， the existence probability of sleep problems and phenomenon of concentration were greater than those of normal children (P<0.05).Conclusion  This study illustrated that iron deficiency anemia could lead to physical retardation in children， immune function and sleep quality. There is relationship between the prevalence of iron deficiency anemia and dental caries.

Key words: anemia, irondeficiency；child；child development；dental caries；sleep disorders