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Asian J Transfus Sci. 2018 Jan-Jun;12(1):46-50. doi: 10.4103/ajts.AJTS_30_17.

Identification of iron status of blood donors by using low hemoglobin density and microcytic anemia factor.

Author information

1
Department of Transfusion Medicine, King George's Medical University, Lucknow, Uttar Pradesh, India.
2
Department of Transfusion Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
3
Department of Transfusion Medicine, All India Institute of Medical Sciences, New Delhi, India.

Abstract

BACKGROUND:

Two new parameters low hemoglobin density (LHD) and microcytic anemia factor (Maf) have been used by Beckman-Coulter LH series analyzers as an easy screening tool for the early detection of iron deficiency. The main objective of this study was to assess if LHD and Maf could be used for assessment of iron status in blood donors and also to establish a cut-off for these two parameters at which a tentative iron deficiency could be reported conclusively.

MATERIALS AND METHODS:

LHD% and Maf could be calculated by knowing mean cell hemoglobin (Hb) concentration, Hb, and mean cellular volume and we used SPSS in calculating LHD and Maf from these parameters.

Results:

: Significant differences were detected in LHD% and Maf values when iron deficient and iron-depleted donors were compared with control donors, while these were insignificant for iron reduced donors. LHD and Maf were able to differentiate between iron deficient and iron-depleted donors from normal donors. A cutoff of 9.18% for LHD% was able to differentiate iron deficient and depleted state from normal iron states with a sensitivity and specificity of 91.9% and 71% respectively. Similarly, a cutoff of 10.16 and10.71 for Maf was able to differentiate between iron-deficient and iron-depleted donors from normal donors, respectively.

Conclusion:

: LHD% and Maf in the screening of blood donors raise the possibility of early detection of iron deficiency, without the need of extra cost and blood sampling.

KEYWORDS:

Iron deficiency; low hemoglobin density; microcytic anemia factor

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