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Fig. 1 | Malaria Journal

Fig. 1

From: Prevalence of polymorphisms in glucose-6-phosphate dehydrogenase, sickle haemoglobin and nitric oxide synthase genes and their relationship with incidence of uncomplicated malaria in Iganga, Uganda

Fig. 1

Effect of age on the relationship between sickle cell trait and malaria incidence. Using data from a longitudinal follow up of cohort children, the means (±standard deviation) of annual malaria episodes per child (incidence rates) for sickle cell HBB heterozygotes (Hb AS, cycle symbols) and wild types (Hb AA, rectangle symbols) over four age categories are presented. Children with wild type Hb (AA) experienced lower incidences in early infancy (till age of 1 year) than sickle cell HBB heterozygotes. Through ages >1–9 years, malaria incidences were largely similar

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