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Table 3 Comparison of the obtained RI with currently used RI and other African countries

From: Establishment of hematological reference intervals for healthy adults in Asmara

Analyte Sex Newly obtained values Ministry of Health (Eritrea) Out of range (OOR %) Tanzania [9] Ghana [10] Ethiopia [11]
Red blood cells (RBC) (× 1012/L) Combined 4.07–6.02 4–6 3.5 4.01–6.12 3.39–5.83
Male 4.2–6.07 4.41–6.27 3.79–5.96 3.53–6.93
Female 4–5.7 3.84–5.59 3.09–5.30 3.45–6.25
Hemoglobin (Hgb) (g/dL) Combined 12.6–17.7 12.5–16 36.2 11.7–17.2 9.8–16.0
Male 12.6–17.8 13.7–17.7 11.3–16.4 11.5–18.0
Female 12.5–17.6 11.1–15.7 8.8–14.4 11.0–16.7
Hematocrit (Hct) (%) Combined 38.3–54.4 37–52 11.1 36.5–52.7 28.9–48.7
Male 40.5–55 40.2–53.7 33.2–50.5 36.2–58.6
Female 37.9–52 36.2–46.8 26.4–45.0 32.1–56.6
Mean cell volume (MCV) (fL) Combined 85.8–100 80–94 46.7 77.6–98.1 72–97 85–100
Male 85.7–100 76.4–98.8 70–98
Female 85.5–100 77.7–97.9 73–96
Mean cell hemoglobin (MCH) (pg) Combined 27.4–32.8 27–31 37.9 23.6–33.1 22.6–33.5
Male 28–33 23.1–33.2 22.7–33.5 26.6–33.3
Female 26.5–32.6 24.2–33.1 22.3–33.6 25.8–32.8
Mean cell hemoglobin concentration (MCHC) (g/dL) Combined 30.2–33.8 32–36 14.9 30.6–34.9 30.5–36.2
Male 30.4–33.7 30.6–35.1 30.6–36.0 29.5–34.4
Female 30–33.7 30.4–34.8 30.4–36.5 28.5–34.4
Red cell distribution width (RDW) (%) Combined 12.3–15.6 11.5–14.5 11.2 11.5–16.7 12–17
Male 12.3–15.5 11.5–16.7
Female 12.3–17 11.4–16.8
White blood cells (WBC) (× 109/L) Combined 3.4–9.0 4–9 12.5 3.0–7.9 3.4–9.2 3.2–8.8
Male 3.7–9.3 2.8–7.9 3.5–9.2
Female 3.3–8.9 3.2–8.0 3.4–9.3
Platelet (Plt) (× 109/L) Combined 134–344.2 150–450 5.4 150–395 89–380 128–432
Male 128.4–318.4 147–356 88–352
Female 145.4–351.6 151–425 89–403