ArticleTropical medicine and health2026
Prevalence and determinants of deworming uptake among under-five children in Tanzania: evidence from the Tanzania Demographic and Health Survey 2022.
Article in Tropical medicine and health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundSoil-transmitted helminth (STH) infections remain a major public health concern in many low- and middle-income countries among children under five. Regular deworming is recommended to reduce infection-related morbidity and improve children's health. Therefore, this study aims to determine the prevalence and determinants of deworming uptake among children aged 12-59 months in Tanzania.
methodsThis study used data from the 2022 Tanzania Demographic and Health Survey (TDHS), accounting for sampling weights, clustering, and stratification to analyze 6710 children aged 12-59 months. Descriptive statistics, Chi-square tests, and a multilevel mixed-effects logistic regression model were used to identify individual-, household-, and community-level factors associated with poor deworming uptake among children nested within survey clusters.
resultsOverall, the prevalence of poor deworming uptake among children was 50%. Compared with children aged 12-15 months, those aged 16-19 months (AOR: 0.46; 95% CI 0.39-0.55) and 20-59 months (AOR: 0.46; 95% CI 0.38-0.55) had significantly lower odds of poor deworming uptake. Vitamin A supplementation (AOR: 0.10; 95% CI 0.08-0.11), older maternal age (25-34 years: AOR: 0.78; 95% CI 0.64-0.94; 35-49 years: AOR: 0.75; 95% CI 0.58-0.97), media exposure (AOR: 0.70; 95% CI 0.60-0.81), and unmarried maternal status (AOR: 0.72; 95% CI 0.62-0.84), urban residence (AOR: 0.75; 95% CI 0.58-0.96), and residence in Zanzibar (AOR: 0.29; 95% CI 0.17-0.50), Southern Highlands (AOR: 0.49; 95% CI 0.31-0.78), and the Eastern zone (AOR: 0.38; 95% CI 0.26-0.57) were associated with significantly lower odds of poor deworming uptake.
conclusionPoor deworming uptake remains a significant public health concern among Tanzanian children aged 12-59 months. Child age, maternal characteristics, media exposure, place of residence, and regional disparities were significant predictors of poor deworming uptake. Integrated deworming into routine child health services, strengthening maternal health education, and expanding community-based outreach in underserved areas could improve deworming uptake and support Tanzania's progress toward national child health priorities and global soil-transmitted helminth control targets.
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