 In developing countries, up to 50 of children become anemic by 12 months of age. Risk factors for iron deficiency ID include low birth weight, maternal prenatal ID, and male sex. Iron deficiency anemia IDA during infancy and childhood is of particular concern because of the potentially detrimental effects on development, some of which may be irreversible even after treatment to correct the deficiency. Delayed umbilical cord clamping is an intervention that increases the infants iron endowment at birth and has been shown to increase hemoglobin Hgb concentration at two months of age. We determined whether a two-minute delay in the clamping of the umbilical cord of normal-weight, full-term infants significantly affected infant iron and hematological status through 6 months of age. In addition, we determined whether the effect of delayed cord clamping was significantly enhanced in subgroups of infants at higher risk of developing iron deficiency. 