Table 1 Calculated hematological (RBC and RBC indices) RI for the screened population
From: Establishment of hematological reference intervals for healthy adults in Asmara
Parameter | Sex | N | Mean | 95% CI for mean | Median | Range | 2.5th–97.5th‰ | p-value (gender) |
|---|---|---|---|---|---|---|---|---|
Red blood cells (RBC) (× 1012/L) | Combined | 591 | 4.9 | 4.9–5.04 | 5.04 | 3.4–6.4 | 4.07–6.02 | 0.000 |
Male | 295 | 5.3 | 5.2–5.3 | 5.3 | 4.02–6.4 | 4.2–6.07 | ||
Female | 296 | 4.7 | 4.7–4.8 | 4.7 | 3.2–6.1 | 4–5.7 | ||
Hemoglobin (Hgb) (g/dL) | Combined | 591 | 15.2 | 15.05–15.3 | 15.4 | 9.1–19.1 | 12.6–17.7 | 0.003 |
Male | 295 | 15.4 | 15.2–15.5 | 15.7 | 9.9–19.1 | 12.6–17.8 | ||
Female | 296 | 14.9 | 14.8–15.2 | 15 | 9.1–18.4 | 12.5–17.6 | ||
Hematocrit (Hct) (%) | Combined | 591 | 46.7 | 46.4–47.1 | 47.3 | 31.1–59.3 | 38.3–54.4 | 0.000 |
Male | 295 | 49.3 | 48.8–49.7 | 49.9 | 38.4–59.3 | 40.5–55 | ||
Female | 296 | 44.2 | 43.8–44.7 | 44.5 | 31.1–55.7 | 37.9–52 | ||
Mean cell volume (MCV) (fL) | Combined | 591 | 93.7 | 93.4–93.8 | 93.7 | 82.2–100.8 | 85.8–100 | 0.650 |
Male | 295 | 93.8 | 93.3–94.2 | 93.6 | 83.6–100.2 | 85.7–100 | ||
Female | 296 | 93.6 | 93.2–94.0 | 93.8 | 82.2–100.8 | 85.5–100 | ||
Mean cell hemoglobin (MCH) (g/dL) | Combined | 591 | 30.6 | 30.5–30.7 | 30.6 | 26.1–33.5 | 27.4 –32.8 | 0.005 |
Male | 295 | 30.8 | 30.6–30.9 | 30.8 | 26.3–33.5 | 28–33 | ||
Female | 296 | 30.4 | 30.2–30.5 | 30.5 | 26.1–33.5 | 26.5–32.6 | ||
Mean cell hemoglobin concentration (MCHC) (g/dL) | Combined | 591 | 32.6 | 32.6–32.7 | 32.9 | 29.5–34.3 | 30.2–33.8 | 0.001 |
Male | 295 | 32.8 | 32.7–32.9 | 33.0 | 29.6–34.3 | 30.4–33.7 | ||
Female | 296 | 32.4 | 32.3–32.6 | 32.8 | 29.5–34.1 | 30–33.7 | ||
Red cell distribution width (RDW) (%) | Combined | 591 | 13.6 | 13.5–13.7 | 13.5 | 11.6–19.1 | 12.3–15.6 | 0.775 |
Male | 295 | 13.6 | 13.5–13.7 | 13.5 | 11.8–16.2 | 12.3–15.5 | ||
Female | 296 | 13.6 | 13.5–13.7 | 13.4 | 11.6–19.1 | 12.3–17 |