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The burden and consequences of inherited blood disorders among young children in western Kenya.


ABSTRACT: Although inherited blood disorders are common among children in many parts of Africa, limited data are available about their prevalence or contribution to childhood anaemia. We conducted a cross-sectional survey of 858 children aged 6-35 months who were randomly selected from 60 villages in western Kenya. Haemoglobin (Hb), ferritin, malaria, C-reactive protein (CRP) and retinol binding protein (RBP) were measured from capillary blood. Using polymerase chain reaction (PCR), Hb type, -3.7?kb alpha-globin chain deletion, glucose-6-phosphate dehydrogenase (G6PD) genotype and haptoglobin (Hp) genotype were determined. More than 2 out of 3 children had at least one measured blood disorder. Sickle cell trait (HbAS) and disease (HbSS) were found in 17.1% and 1.6% of children, respectively; 38.5% were heterozygotes and 9.6% were homozygotes for ?(+) -thalassaemia. The Hp 2-2 genotype was found in 20.4% of children, whereas 8.2% of males and 6.8% of children overall had G6PD deficiency. There were no significant differences in the distribution of malaria by the measured blood disorders, except among males with G6PD deficiency who had a lower prevalence of clinical malaria than males of normal G6PD genotype (P?=?0.005). After excluding children with malaria parasitaemia, inflammation (CRP?>?5?mg?L(-1) ), iron deficiency (ferritin?

SUBMITTER: Suchdev PS 

PROVIDER: S-EPMC3963444 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature

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The burden and consequences of inherited blood disorders among young children in western Kenya.

Suchdev Parminder S PS   Ruth Laird J LJ   Earley Marie M   Macharia Alex A   Williams Thomas N TN  

Maternal & child nutrition 20120913 1


Although inherited blood disorders are common among children in many parts of Africa, limited data are available about their prevalence or contribution to childhood anaemia. We conducted a cross-sectional survey of 858 children aged 6-35 months who were randomly selected from 60 villages in western Kenya. Haemoglobin (Hb), ferritin, malaria, C-reactive protein (CRP) and retinol binding protein (RBP) were measured from capillary blood. Using polymerase chain reaction (PCR), Hb type, -3.7 kb alpha  ...[more]

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