Resumo

BAPTISTA GONZALEZ, Héctor Alfredo; RAMIREZ MAYA, Alma; ROSENFELD MANN, Fany  e  TRUEBA GOMEZ, Rocío. Influencia de la velocidad de crecimiento y tipo de alimentación láctea sobre la reserva corporal de hierro a los dos meses de edad. Bol. Med. Hosp. Infant. Mex. [online]. 2004, vol.61, n.2, pp.109-118. ISSN 1665-1146.

Introduction. The objective of this study was to establish the influence of milk feeding and growth velocity on iron store at 2 months of age. Material and methods. In a longitudinal and randomized study, we included to healthy newborn, anthropometric data (weight, height, and cephalic perimeter), hemoglobin (Hb), and serum ferritin (SF) values at birth, 1 and 2 months of age were obtain according to type of milk feeding received (breast, formula fortified with iron at 12 mg/L or mixed). Results. We included 127 cases, with 57, 14 and 56 newborn for each group. No statistical differences were observed in growth velocity. The values average of Hb were of 19.6, 18.8 and 19.1 g/dL, of 14.3, 13.3 and 13.7 g/dL and of 12.0, 11.7 and 11.7 g/dL, for the FS the values average were of 333, 297 and 347 µg/L, of 253, 277 and 258 µg/L and 2 month of age 237, 227 and 243 µg/L, without statistical differences. The global prevalence of iron deficiency was of 3.9%. Conclusions. Milk formulas, fortified with iron at 12 mg/L, do no represent additional advantage in body growth, Hb values and iron store.

Palavras-chave : Ferritin; iron store; anemia; hemoglobin; anemia by iron deficiency; iron deficiency; breast and formula feeding; newborns; infants.