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  • Title: [Iron stores status at early pregnancy].
    Author: Barón MA, Solano L, Peña E, Del Real S.
    Journal: Invest Clin; 2005 Jun; 46(2):121-30. PubMed ID: 16001744.
    Abstract:
    Iron deficiency is the most common cause of nutritional anemia. During pregnancy there is a high risk of developing it, due to the increase of iron requirements for fetal and maternal tissues growth. The objective of this study was to determine the iron nutritional status in early pregnancy and to determine its relationship with the dietary intake. The study applied a cross-sectional and descriptive design in 419 pregnant women (13-41 y) from Valencia, Carabobo, Venezuela. Serum ferritin was determined by enzimoinmunoassay and hemoglobin by a semi-automated method. Dietary iron intake was assessed through two non-consecutive 24 hours recalls. Statistical analysis included basic descriptives, Fisher exact test, Chi-square, and Mann-Whitney tests; with a statistical significance of p < 0.05. The iron deficiency and anemia prevalence were 16.2% and 14.4%, respectively; corresponding 36.6% to ferropenic anemia. 10.4%, 29.0% and 24.2% of the women had deficient intake for iron, vitamin C and A, respectively. There were no significant differences by age. A nutritional risk was observed regarding the iron status, demonstrated by the percentage of ferropenic anemia and because the main dietary contribution came from non-heme iron, which has low bioavailability. Additionally, there was an important percentage of inadequate vitamin C and A intakes; hence, their contribution to iron absorption was limited.
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