Table 1. Number of samples, means, standard deviations, variance components and estimates of heritability for haematological traits.
| Traits | N | Mean ± SD | σ2e | σ2a | h2 |
|---|---|---|---|---|---|
| WBC (10³/mm³) | 558 | 20.8 ± 4.9 | 17.98 | 5.33 | 0.23 |
| LYM (#) | 567 | 7.6 ± 1.9 | 1.66 | 1.57 | 0.49 |
| RBC (106/mm³) | 567 | 8.1 ± 0.8 | 0.39 | 0.27 | 0.41 |
| HGB (g/dl) | 559 | 13.7 ± 1.4 | 1.21 | 0.80 | 0.40 |
| HCT (%) | 564 | 43.2 ± 3.9 | 9.53 | 4.92 | 0.34 |
| MCV (μm³) | 567 | 53.4 ± 3.3 | 3.29 | 7.22 | 0.69 |
| MCH(pg) | 561 | 16.9 ± 1.3 | 0.56 | 1.12 | 0.67 |
| MCHC (g/dl) | 561 | 31.7 ± 1.2 | 0.45 | 0.90 | 0.67 |
| RDW (%) | 565 | 16.5 ± 1.9 | 1.70 | 1.59 | 0.48 |
| PLT (10³/mm³) | 545 | 317.5 ± 82.2 | 4016.67 | 2522.7 | 0.39 |
| MPV (μm³) | 564 | 7.5 ± 0.5 | 0.19 | 0.11 | 0.37 |
| PCT(%) | 555 | 0.2 ± 0.1 | 0.02 | 0.004 | 0.17 |
WBC, White blood cell count; LYM (#), Lymphocytes count, RBC, Red blood cell count; HGB, Haemoglobin concentration; HCT, Haematocrit level; MCV, Mean Corpuscular Volume; MCH, Mean Corpuscular Haemoglobin; MCHC, Mean Corpuscular Haemoglobin Concentration; RDW, Red Distribution Width; PLT, Platelets; MPV, Mean Platelet Volume; PCT, Plateletcrit;. σ2e, residual variance; σ2a, additive genetic variance; h2, heritability.