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  • Title: Evaluation of serum transferrin receptor for iron deficiency in women of child-bearing age.
    Author: Lin XM, Zhang J, Zou ZY, Long Z, Tian W.
    Journal: Br J Nutr; 2008 Nov; 100(5):1104-8. PubMed ID: 18377683.
    Abstract:
    The objective was to study the evaluation of serum transferrin receptor (sTfR) for Fe deficiency in women of child-bearing age. Primary screening was performed in 942 women ranging in child-bearing age. Serum ferritin (SF), Zn protoporphyrin (ZPP) and Hb were determined. Then the subjects were divided into four groups: normal, Fe store depletion (IDs), Fe-deficiency erythropoiesis and Fe-deficiency anaemia. sTfR was determined and sTfR/SF (sTfR/logSF and log(sTfR/SF)) was calculated. Changes of sTfR in women of different Fe status were observed. A receiver-operating characteristic (ROC) curve was used to evaluate whether sTfR had proper diagnostic efficacy for functional Fe deficiency. The levels of sTfR increased significantly along with the aggravation of Fe deficiency. Increase of STfR/SF along with the aggravation of Fe deficiency was more significant than that of sTfR. STfR had a significant negative correlation with SF and Hb, while it had a significant positive correlation with ZPP. The ROC curve showed that the diagnostic effective rate of sTfR for Fe deficiency could reach 83 %. At this point, the sensitivity was 79 % and the specificity was 63 %. Log(sTfR/SF) could be considered to have the highest effective ratio in detecting IDs, since it reached 99 %. STfR and sTfR/SF could both reflect body Fe-deficiency status specifically. They could be used as reliable indicators for evaluating Fe status and diagnosing Fe deficiency in women of child-bearing age.
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