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Breastfeeding exclusively and iron deficiency anemia during the first 6 months of age
Rosa F S V Marques1, José A A C Taddei2, Fábio A Lopez3
1Pediatrician, Professor, Department of Integral Health, State University of Pará, Pará, Brazil.
Insights
Exclusive breastfeeding protects infants from iron deficiency and anemia for the first four months. After four months, iron deficiency and anemia rates increase significantly in exclusively breastfed infants, necessitating iron level monitoring.
Area of Science:
- Pediatrics
- Nutritional Science
- Hematology
Background:
- Exclusive breastfeeding is recommended for infant nutrition.
- Iron deficiency and anemia are significant global health concerns in infants.
Purpose of the Study:
- To determine the prevalence of iron deficiency and iron deficiency anemia in exclusively breastfed infants aged 1-6 months.
- To identify risk factors associated with these conditions.
Main Methods:
- A cohort study involving 102 healthy, full-term infants.
- Hemoglobin and serum ferritin levels were measured at 1, 4, and 6 months.
- Maternal iron status was assessed postpartum.
Main Results:
- At 4 months, 5.7% had iron deficiency and 3.4% had iron deficiency anemia.
- By 6 months, iron deficiency rose to 26.1% and anemia to 23.9%.
- Iron deficiency at 6 months correlated with growth velocity.
Conclusions:
- Exclusive breastfeeding offers protection against iron deficiency and anemia up to 4 months.
- Iron deficiency and anemia rates increase after 4 months in exclusively breastfed infants.
- Monitoring iron levels in exclusively breastfed infants with rapid growth from 4 months is recommended.
Objective:
The objective was to determine the prevalence of iron deficiency and iron deficiency anemia among exclusively breastfed infants from one to six months of life and to identify associated risk factors.
Methods:
This is a cohort study of the hemoglobin and serum ferritin levels of 102 healthy full-term infants, weighing more than 2500 grams (5.5 pounds) at birth, evaluated for growth development and supported to promote exclusive breastfeeding. Hemoglobin and ferritin levels were measured in the first, fourth, and sixth months of life. The hemoglobin and ferritin levels of the mothers were also measured in the first month postpartum.
Results:
At four months, 5.7% presented iron deficiency and 3.4% had iron deficiency anemia. At six months, the percentage of children with iron deficiency increased more than four times, reaching 26.1%, while iron deficiency anemia was present in 23.9% of the infants studied. Iron deficiency at six months of age was significantly correlated to growth velocity.
Conclusion:
According to the results of this study, exclusive breastfeeding protects infants from iron deficiency and iron deficiency anemia for the first four months of life. After this age, in accordance with the literature, the findings of this study demonstrated an increase in anemia and iron deficiency rates, adding to evidence that supports the monitoring of iron levels in exclusively breastfed children presenting higher weight gains beginning at four months of age.
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