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Anemia Among Children Exposed to Polyparasitism in Coastal Kenya
Alicia Chang Cojulun1, Amaya L Bustinduy1, Laura J Sutherland1
1Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio; Great Ormond Street NHS Trust, London, United Kingdom; Department of Environmental Sciences, Emory University, Atlanta, Georgia; Division of Vector Borne and Neglected Tropical Diseases, Ministry of Public Health and Sanitation, Nairobi, Kenya.
Insights
Childhood anemia in resource-limited settings is high, linked to young age and malaria. Integrated management addressing iron deficiency and inflammation is crucial for effective treatment.
Area of Science:
- Pediatrics
- Infectious Diseases
- Nutritional Science
Background:
- Anemia is a significant health issue for children in resource-limited areas with high parasite prevalence.
- Understanding anemia's multifactorial causes in endemic regions is critical for effective public health interventions.
Purpose of the Study:
- To investigate the mechanisms and correlates of anemia in Kenyan children.
- To identify key risk factors contributing to childhood anemia in a setting with endemic parasitic infections.
Main Methods:
- Cross-sectional study of 254 Kenyan children aged preschool to early school age.
- Analysis included complete blood counts, iron studies, and assessment for parasitic infections (malaria, Schistosoma, hookworm).
- Statistical evaluation using odds ratios (OR) and 95% confidence intervals (CI) to determine independent correlates of anemia.
Main Results:
- A high prevalence of anemia (79%) was observed in the study population.
- Younger age (<9 years) and asymptomatic malaria infection were the strongest independent predictors of anemia.
- Iron-deficiency anemia (IDA) was prevalent (84% of those with iron studies), with a significant proportion also showing signs of anemia of inflammation (AI).
Conclusions:
- Childhood anemia in this Kenyan setting is multifactorial, driven by young age, malaria, iron deficiency, and inflammation.
- Integrated management strategies addressing both iron deficiency and chronic inflammation are necessary.
- Early intervention and comprehensive care are vital for combating childhood anemia in endemic regions.
Abstract:
Anemia represents a substantial problem for children living in areas with limited resources and significant parasite burden. We performed a cross-sectional study of 254 Kenyan preschool- and early school-age children in a setting endemic for multiple chronic parasitic infections to explore mechanisms of their anemia. Complete venous blood cell counts revealed a high prevalence of local childhood anemia (79%). Evaluating the potential links between low hemoglobin and socioeconomic factors, nutritional status, hemoglobinopathy, and/or parasite infection, we identified age < 9 years (odds ratio [OR]: 12.0, 95% confidence interval [CI]: 4.4, 33) and the presence of asymptomatic malaria infection (OR: 6.8, 95% CI: 2.1, 22) as the strongest independent correlates of having anemia. A total of 130/155 (84%) of anemic children with iron studies had evidence of iron-deficiency anemia (IDA), 16% had non-IDA; 50/52 of additionally tested anemic children met soluble transferrin-receptor (sTfR) criteria for combined anemia of inflammation (AI) with IDA. Children in the youngest age group had the greatest odds of iron deficiency (OR: 10.0, 95% CI: 3.9, 26). Although older children aged 9-11 years had less anemia, they had more detectable malaria, Schistosoma infection, hookworm, and proportionately more non-IDA. Anemia in this setting appears multifactorial such that chronic inflammation and iron deficiency need to be addressed together as part of integrated management of childhood anemia.
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