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Table 1 Descriptive statistics, differences between groups and estimated reference intervals for haematological variables. Data are expressed as mean ± SD or median (minimum-maximum)

From: The biomedical piglet: establishing reference intervals for haematology and clinical chemistry parameters of two age groups with and without iron supplementation

Variable P5 P5 P5 P30 P30 P30 P-value
Descriptive data Reference Interval n Descriptive data Reference Interval n
Hb (g/dL) 6.03 ± 1.02 3.56-7.74 61 8.84 ± 2.0 4.32-13.31 64 <0.0001
HCT (%) 20 ± 3 13-25 61 29 ± 6 16-41 64 <0.0001
CH (pg) 16.85 (14.10–22.30) 14.30–21.82 66 14.0 (9.0–19.0) 9.3–18.9 64 <0.0001
CHm (pg) 18.3 (16.1–22.4) 16.27–22.01 50 15.4 ± 1.5 12.7–18.8 33 <0.0001
CHDW (pg) 3.72 (2.90–5.84) 3.01–5.71 66 3.99 ± 0.66 2.66–5.33 64 0.3541
CHDWm (pg) 3.36 (2.82–5.47) 2.83–5.34 50 4.78 (2.61–5.55) 2.61–5.50 33 <0.0001
RBC (106/μL) 3.26 ± 0.52 1.88–4.11 61 6.08 ± 0.93 4.08–8.17 64 <0.0001
MCV (fL) 61.97 ± 5.39 51.41–73.65 61 48.5 (32.4–61.5) 34.2–61.3 64 <0.0001
MCVm (fL) 65.9 ± 4.5 56.4–74.9 50 52.9 ± 3.9 45.3–60.5 33 <0.0001
MCHC (g/dL) 30.0. ± 1.6 26.1–32.7 61 29.9 ± 1.59 26.5–33.6 63 0.9606
MCH (pg) 18.50 ± 1.36 15.45–21.54 61 14.8 (9.1–20.2) 9.4–19.8 64 <0.0001
CHCM (g/dL) 27.35 ± 1.11 24.84–29.13 66 28.35 ± 1.60 25.13–31.62 64 0.0003
CHCMm (g/dL) 28.2 (26.7–30.8) 26.8–30.8 50 28.6 (26.8–30.9) 26.8–30.9 33 0.5389
RDW (%) 18.8 (15.8–25.7) 15.9–25.7 56 26.5 (13.5–38.5) 13.5–38.0 64 <0.0001
RDWm (%) 15.9 (14.2–25.7) 14.2–25.1 50 25.5 (12.7–32.2) 12.7–32.0 33 <0.0001
HDW (g/dL) 2.89 (2.28–4.13) 2.29–3.93 66 2.63 ± 0.40 2.02–3.50 64 <0.0001
HDWm (g/dL) 2.60 (2.14–3.68) 2.16–3.63 50 2.73 ± 1.99–3.28 1.99–3.28 33 0.1685
WBC (103/μL) 7.47 (4.39–12.58) 4.50–12.55 58 11.6 ± 3.2 5.6–18.5 58 <0.0001
neutrophil (%) 44.71 ± 9.66 22.77–61.33 60 35.3 ± 15.0 10.8–70.6 63 0.0001
lymphocyte (%) 49.30 ± 9.49 33.45–70.86 60 57.9 ± 14.5 26.2–82.9 64 0.0005
monocyte (%) 3.11 ± 1.13 1.10–5.85 59 4.4 ± 1.5 1.4–8.3 64 <0.0001
eosinophil (%) 0.5 (0.1–3.1) 0–2.3 57 0.6 (0.1–7.6) 0–1.9 64 0.5699
basophil (%) 0.41 ± 0.16 0–0.79 60 0.4 (0.2–1.2) 0–0.9 63 0.1183
neutrophil (103/μL) 3.17 ± 0.98 1.15–5.43 54 3.5 (0.8–9.9) 0.8–9.7 61 0.1472
lymphocyte (103/μL) 3.85 ± 1.11 1.91–6.45 58 6.6 ± 2.4 2.7–12.8 60 <0.0001
monocyte (103/μL) 0.23 (0.07–0.7) 0.075–0.68 59 0.4 (0.1–1.1) 0.1–1.1 59 <0.0001
eosinophil (103/μL) 0.04 (0.01–0.48) 0–0.28 60 0.07 (0.01–0.38) 0.00–0.20 63 0.0014
basophil (103/μL) 0.03 (0.01–0.2) 0–0.08 60 0.05 (0.02–0.33) 0.00–0.13 63 <0.0001
PLT (103/μL) 594 (219–1142) 253–1286 61 503 ± 141 192–832 63 <0.0001
MPV (fL) 17.84 ± 3.78 9.99–25.32 61 8.5 (6.2–13.0) 6.5–12.7 63 <0.0001
PDW (%) 84.22 ± 8.32 69.17–100.30 61 60.40 (17.90–106.60) 18.59–101.98 64 <0.0001
PCT (%) 1.20 ± 0.50 0.29–2.52 61 0.40 (0.12–0.94) 0.18–0.91 62 <0.0001
MPC (g/dL) 24.5 (17.2–26.3) 17.81–26.30 61 24.09 ± 0.96 21.69–26.50 64 0.0182
MPM (pg) 2.84 ± 0.34 2.10–3.44 61 1.96 ± 0.22 1.58–2.45 63 <0.0001
PCDW (g/dL) 4.6 (4.0–5.7) 4.0–5.6 66 4.6 (3.8–5.9) 3.9–5.9 64 0.4354
PMDW (pg) 1.45 (0.99–1.62) 0.99–1.61 66 0.87 (0.61–1.55) 0.62–1.54 64 <0.0001