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[Estimation of normal hemogram values in Madagascar].

O Rakoto Alson1, M Ratsitorahina, P Pfister

  • 1Institut Pasteur de Madagascar, BP 1274-101 Antananarivo-Madagascar.

Archives De L'Institut Pasteur De Madagascar
|December 5, 2002
PubMed
Summary

Establishing normal hematological values in Madagascar is crucial. This study assessed blood cell counts in healthy adults, revealing significant sex-based differences in key parameters.

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Area of Science:

  • Hematology
  • Clinical Pathology
  • African Health

Background:

  • Establishing reference ranges for hematological parameters is essential for accurate clinical diagnosis.
  • Many African countries, including Madagascar, lack established normal hematological values.
  • Previous studies have indicated ethnic and geographic variations in blood cell counts.

Purpose of the Study:

  • To determine the normal hematological values for healthy adults in Madagascar.
  • To provide a baseline for laboratory diagnostics at the Institut Pasteur de Madagascar.
  • To compare Malagasy hematological values with other African and Caucasian populations.

Main Methods:

  • Blood cell counts were performed on 67 healthy adult Malagasy volunteers from the highlands.

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  • Analysis was conducted using a Coulter STKS hematological autoanalyzer.
  • Statistical analysis was performed to identify differences between sexes.

    • Main Results:

    • Significant sex-based differences were observed in red blood cell count, leukocyte count, platelet count, and hemoglobin and hematocrit values.
    • Specific differences were also noted for neutrophile polynuclears, eosinophile polynuclears, and lymphocytes.
    • The data were compared with existing values from African and Caucasian populations.

    Conclusions:

    • This study establishes preliminary normal hematological values for the Malagasy population.
    • The findings highlight the importance of sex-specific reference ranges in hematological analysis.
    • These reference values will aid in improving diagnostic accuracy at the Institut Pasteur de Madagascar and contribute to broader African hematological data.