The purpose of this clinical trial was to determine if high-iron or low-iron formula, containing an average of 12.7 mg/L or 2.3 mg/L respectively, had differing effects on iron status in infancy and on development longitudinally.
For a detailed description of the clinical trial setting and procedures in infancy, please refer to the following: Walter T, Pino P, Pizarro F and Lozoff B. Prevention of iron-deficiency anemia: Comparison of high- and low-iron formulas in term healthy infants after six months of life. J Pedr 1998:132:635-40.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
835
Infants randomly assigned at 6 months of age to receive low-iron formula (average 2.3 mg/L, range 1.6 - 2.4 mg/L) until 12 months of age. Low-iron formula distributed in powdered form. Project personnel visited infants' homes weekly to record measures of powdered formula used per day. Formula consumption was also verified by the number of cans given by the clinic nurse at each visit (regular pediatric visits and monthly clinic appointments until 12 months of age.)
Infants randomly assigned at 6 months of age to receive high-iron formula (average 12.7 mg/L) until 12 months of age. High-iron formula distributed in powdered form. Project personnel visited infants' homes weekly to record measures of powdered formula used per day. Formula consumption was also verified by the number of cans given by the clinic nurse at each visit (regular pediatric visits and monthly clinic appointments until 12 months of age.)
Instituto de Nutriticion y Tecnologia de los Alimentos
Santiago, Chile
Iron deficiency anemia
Time frame: 12 and 18 months
Longitudinal child behavior and development
Time frame: 10 years
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