Fig. 1

Receiver operating characteristic curves of red cell indices in the prediction of early iron deficiency in early pregnancy. The ROC curves of Hb, MCV, MCH and MCHC were compared in the prediction of early iron deficiency indicated by Serum ferritin < 30 μg/dL. Abbreviations: Hb haemoglobin, MCV mean corpuscular volume, MCH mean corpuscular haemoglobin, MCHC mean corpuscular haemoglobin concentration