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Table 2 Patient characteristics by malaria species, Cambodia, 2010-2012

From: G6PD deficiency in Plasmodium falciparum and Plasmodium vivax malaria-infected Cambodian patients

Patients’ characteristics Plasmodium vivax Plasmodium falciparum P-value
N   965 1443 -
Mean age in years (95% CI) 26.5 (25.8-27.2) 27.1 (26.3-27.7) 0.27
Age distribution (%) <5 years 0.2 0.9 <0.0001
5-14 years 9.2 11.9
>15 years 90.6 87.2
Sex ratio (% female)   23.4 18.1 <0.0001
Mean G6PD activity in U/g Hb (95% CI) 11.86 (11.57-12.15) 11.45 (11.18-11.73) 0.05
G6PD Classes (%) I (0% of normal) 0.10% 1.2% <0.0001
II (0.1-10% of normal) 4.9% 9.2%
III (10.1-60% of normal) 5.6% 6.0%
IV (60.1-150% of normal) 85.8% 77.7%
V (>150% of normal) 3.6% 6.0%
Mean haemoglobin in g/dL (95% CI) 10.2 (10.0-10.4) 10.1 (9.9-10.2) 0.4
Mean white cell count in G/L (95% CI) 4.03 (3.86-4.20) 3.95 (3.81-4.09) 0.53
Haemoglobin electrophoresis profile (%) Normal 56.1 61.6 0.05
Hb E - homozygous 6.1 4.9
Hb E - heterozygous 33.5 30.1
Heterozygous E - α-thalassaemia 4.1 3.3
Heterozygous Hb E - β-thalassaemia 0.0 0.1
β-thalassaemia 0.0 0.1