STUDY ON INTELLIGENT DEVELOPMENT AND BEHAVIORAL PROBLEMS OF IRON-DEFICIENT SCHOOL CHILDREN

摘要

We studied a sample of 433 school children aged 6～14 years with double-blind, placebo-control. Children Behavior Checklist (CBCL), Conner's questionnaire in all sample and WISC-CR intelligent test in part of it were performed. The study aimed to explore the behavioral and intelligent effects of iron deficiency on school children. The results showed: in the children with poor intelligent quotien (IQ) tested by WISC-CR serum ferritin level was significantly lower than that in the children with normal IQ (P < 0. 01)s with analysis of stepwise multiple regression for behavioral problem of children, serum ferritin (SF), free erythroyte protoporphyrin (FEP) and hemoglobin (HB) were taken into the equation suggesting that iron-deficient biochemical index had significant effect on behavioral problem of school children. With factor analysis of Conner's questionnaire, different factor structure between the iron-deficient and normal group was revealed. Therefore, iron-deficient group had higher learning problem than normal group. After treatment using iron dextran the differences in the learning problem between the two groups disappeared.