Iron deficiency in adolescents.

Two hundred and seventy school children between 13 to 20 years were investigated for iron deficiency. Overall iron deficiency (assessed by serum ferritin assay) was 39% in adolescents; 30% boys and 54% girls were iron depleted, anemia was found in 17% boys (Hb 13g/dl) and in 18% girls (Hb 12g/dl). Iron deficiency was more frequent than anemia in adolescent girls than boys. Iron deficient children had significantly lower mean Hb levels (p 0.001) compared to children with adequate iron stores. A significant correlation was found between serum ferritin concentration and Hb levels in iron deficient children (r = 0.49, p 0.001). A high prevalence of iron deficiency in adolescents reported here reflects the limited availability of dietary iron in children belonging to lower socio-economic group and the importance of screening for iron deficiency and the treatment of these children with iron preparation. Iron status in this age group warrants further evaluation and research.