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  • Title: Serum ferritin, folate and cobalamin levels and their correlation with anemia in normal full-term pregnant women.
    Author: Ho CH, Yuan CC, Yeh SH.
    Journal: Eur J Obstet Gynecol Reprod Biol; 1987 Sep; 26(1):7-13. PubMed ID: 3666265.
    Abstract:
    Serum ferritin, folate, cobalamin and hemoglobin concentrations were determined by radioimmunoassay, radioisotopic assay, radioassay and an automated hematology analyser respectively, and then analysed in 221 normal full-term pregnant women in order to evaluate the incidence and the prevalence of nutritional anemia in pregnancy. None of them had received any hematonic during their pregnancy. Their mean age was 27.68 years and the mean duration of pregnancy was 39.51 weeks. Twenty-three (10.41%) of these previously non-anemic pregnant women had clinical anemia after full-term pregnancy. Of the 23 women, 11 (47.83%) had iron-deficiency anemia, with serum ferritin less than 12 micrograms/l; another 11 women had some degree of iron depletion, with serum ferritin less than 20 micrograms/l. So in 22 of the 23 anemic women (95.65%) the cause of anemia may correlate to iron depletion. The remaining one had folate-deficiency anemia. No pure cobalamin deficiency anemia was found in this study. Among the 198 non-anemic normal full-term pregnant women, 92 (46.46%) had iron depletion (serum ferritin less than 20 micrograms/l), of whom 35 (17.68%) had severe iron deficiency, with serum ferritin less than 12 micrograms/l. Another 3 had folate deficiency and 3 had cobalamin deficiency. By including all the anemic and non-anemic pregnant women, 114 (51.58%) of them had some degree of iron depletion. In other words, pregnancy can produce a considerable degree of iron depletion in more than half of the previously non-anemic women.
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