Mean values and reference intervals for various blood parameters (N=946)
| Variables | Mean±SD | 95% CI | Reference interval P2.5–P97.5 |
| Erythrocytes (×1012 /L) | 4.64±0.32 | 4.62 to 4.66 | 4.01–5.28 |
| Haemoglobin (g/L) | 123.6±7.3 | 123.2 to 124.1 | 111.0–138.0 |
| MCV (fL) | 78.77±3.37 | 78.55 to 78.98 | 72.17–85.40 |
| MCH (pg) | 26.72±1.33 | 26.63 to 26.80 | 23.80–29.23 |
| MCHC (g/dL) | 33.91±0.87 | 33.86 to 33.97 | 32.27–35.60 |
| HCT (L/L) | 0.37±0.03 | 0.36 to 0.37 | 0.30–0.41 |
| RDW (%) | 12.48±0.83 | 12.42 to 12.53 | 11.30–14.30 |
| Leukocytes (×109 /L) | 8.43±2.34 | 8.28 to 8.58 | 4.70–13.73 |
| Platelet (×109 /L) | 343.04±89.73 | 337.31 to 348.77 | 181.00–539.28 |
| MPV (fL) | 9.96±0.87 | 9.91 to 10.02 | 8.60–11.80 |
| Mentzer index | 17.10±1.71 | 16.99 to 17.20 | 14.04–20.74 |
| Reticulocytes (×109 /L) | 61.88±17.18 | 60.79 to 62.98 | 34.57–100.43 |
| RET-He (pg) | 30.04±1.54 | 29.94 to 30.14 | 26.40–32.90 |
| Ferritin (pmol/L) | 149.88±135.27 | 141.24 to 158.53 | 31.00–484.15 |
HCT, haematocrit; MCH, mean corpuscular haemoglobin; MCHC, mean corpuscular haemoglobin concentration; MCV, mean corpuscular volume; MPV, mean platelet volume; P, percentile; RDW, red cell distribution width; RET-He, reticulocyte haemoglobin equivalent.