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Table 1 Demographic characteristics and haematological indices of the study population

From: Comparison of leucocyte profiles between healthy children and those with asymptomatic and symptomatic Plasmodium falciparum infections

Variables Symptomatic N = 25 Asymptomatic N = 67 Uninfected control N = 16 P value
Age (years) 9 (7–12) 9(8–11) 10 (8.25–11) 0.7621a
Gender (%), Female/Male 48/52 43/57 62/38 0.3830b
Parasite density (/µl), 13,893 (4762–36,300) 400(160–630)20 NA  < 0.0001c
PfHRP2 (ng/ml) 291.6 (7.87–1100)22 6.44 (2.42—12.73)29 NA  < 0.0001c
Haematological indices
 Haemoglobin (g/dl) 11.00 (8.50–12.00) 10.70 (10.00–12.00) 11.70 (10.33–12.88) 0.0828a
 WBC (× 109/l) 6.60 (4.93–7.99) 6.20 (4.82–7.38) 6.98(6.20–8.73) 0.2511a
 Neutrophils (× 109/l) 4.3 (3.04–5.70) 1.84(1.40–2.30) 1.84(0.87–2.55)  < 0.0001a
 Neutrophils (%) 69.90 (61.45–78.25) 29.50 (23.50–38.70) 25.35 (21.63–32.18)  < 0.0001a
 Lymphocytes (× 109/l) 1.00 (0.70–1.86) 3.37 (2.59–4.30) 4.19 (3.13–4.58)  < 0.0001a
 Lymphocytes (%) 17.90 (11.20–28.75) 55.90 (47.60–67.68) 59.00 (49.00–67.68)  < 0.0001a
 Monocytes (× 109/l) 0.40 (0.24–0.65) 0.52(0.34–0.72) 0.52 (0.44–0.62) 0.3366a
 Monocytes (%) 7.30 (3.95–10.47) 8.10 (6.40–10.70) 8.00 (6.83–9.13) 0.4395a
 Platelets (× 109/l) 109 (59.0–144.0) 264 (205.0–334.0) 241.0 (204.8–334.8)  < 0.0001a
  1. PfHRP2 P. falciparum histidine-rich protein 2; WBC white blood cell count. Data are median [interquartile range (IQR)], and superscripts indicate the number of subjects with data for each variable if less than the total. aKruskal–Wallis test, bChi-square test, cMann–Whitney U test