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检测小儿营养性缺铁性贫血１４６例，其红细胞ＭＣＶ７９．０３±７．０９ｆｌ，ＲＤＷ－ｃｖ０．１７４±０．０１３，ＭＣＶ下降，ＲＤＷ变宽，且与对照组之间有非常显著性差异（ｔ值分别为３５．７１和４．９１，ｐ均＜０．００１）．而非缺铁性贫血１１８例，就不具有这一变化．缺铁性贫血ＭＣＶ和ＲＤＷ变化与小儿年龄之间没有明显差异（ｔ值分别为０．８４及０．３２，ｐ均＞０．０５）．这一变化特征，在鉴别缺铁与非缺铁性贫血有实用参考价值
The detection of 146 cases of nutritional iron deficiency anemia in children, the erythrocyte MCV79.03 ± 7.09fl, RDW-cv0.174 ± 0.013, MCV decreased, RDW broadened, and there was a significant difference between the control group ( t values were 35.71 and 4.91, respectively, p <0.001). 118 cases of iron deficiency anemia, do not have this change. There was no significant difference in the changes of MCV and RDW between iron-deficiency anemia and pediatric age (t = 0.84 and 0.32, respectively, p> 0.05). This change in the identification of iron deficiency and non-iron deficiency anemia have practical reference value