Trial reportThe American journal of tropical medicine and hygiene2011
Decreased parasite load and improved cognitive outcomes caused by deworming and consumption of multi-micronutrient fortified biscuits in rural Vietnamese schoolchildren.
Trial report in The American journal of tropical medicine and hygiene, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 11 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
27 citing papers in PubMed, 11 syntheses or guidelines pooled it.
- Parasitic Infections and Associated Cognitive Outcome Among School-Aged Children in Africa: A Systematic Review.Brain and behavior · 2026Pooled it
- Effects of Foods Fortified with Zinc, Alone or Cofortified with Multiple Micronutrients, on Health and Functional Outcomes: A Systematic Review and Meta-Analysis.Advances in nutrition (Bethesda, Md.) · 2021Pooled it
- Food fortification with multiple micronutrients: impact on health outcomes in general population.The Cochrane database of systematic reviews · 2019Pooled it
- Public health deworming programmes for soil-transmitted helminths in children living in endemic areas.The Cochrane database of systematic reviews · 2019Pooled it
- Supplementation with micronutrients and schistosomiasis: systematic review and meta-analysis.Pathogens and global health · 2019Pooled it
- Health effects of micronutrient fortified dairy products and cereal food for children and adolescents: A systematic review.PloS one · 2019Pooled it
- Deworming in non-pregnant adolescent girls and adult women: a systematic review and meta-analysis.Systematic reviews · 2018Pooled it
- Soil-transmitted helminth infection, loss of education and cognitive impairment in school-aged children: A systematic review and meta-analysis.PLoS neglected tropical diseases · 2018Pooled it
- Evaluating the impact of integrated development: are we asking the right questions? A systematic review.Gates open research · 2017Pooled it
- Deworming drugs for soil-transmitted intestinal worms in children: effects on nutritional indicators, haemoglobin, and school performance.The Cochrane database of systematic reviews · 2015Pooled it
- Influence of nutrition on infection and re-infection with soil-transmitted helminths: a systematic review.Parasites & vectors · 2014Pooled it
- Effect of a School-Based Physical Activity and Multi-Micronutrient Supplementation Intervention on Cognitive Function and Academic Achievement Among Schoolchildren in Tanzania: Secondary Outcome from the KaziAfya Cluster-Randomized Controlled Trial.International journal of environmental research and public health · 2025Trial
- Fortification of Carica papaya fruit seeds to school meal snacks may aid Africa mass deworming programs: a preliminary survey.BMC complementary and alternative medicine · 2018Trial
- Effect of multi-micronutrient-fortified rice on cognitive performance depends on premix composition and cognitive function tested: results of an effectiveness study in Cambodian schoolchildren.Public health nutrition · 2018Trial
- Rapid re-infection with soil-transmitted helminths after triple-dose albendazole treatment of school-aged children in Yunnan, People's Republic of China.The American journal of tropical medicine and hygiene · 2013Trial
- Unraveling the relationship between nutritional status, cognitive function, and school performance among school-aged children in Taabo, Côte d'Ivoire: a school-based observational study.Frontiers in nutrition · 2025Article
- Burden and causes of anemia in Vietnam: insights from the global burden of disease data.BMC public health · 2024Article
- Effects of Iron-Fortified Foods on the Nutritional Status of Children Residing in Regions Vulnerable to Parasitic Diseases: A Systematic Review.Preventive nutrition and food science · 2024Review
- Decreased Weight-for-Age Associated with Mass Deworming among Young Ethiopian Schoolchildren in Jimma Town, Southwest Ethiopia: A School-Based Cross-Sectional Study.The American journal of tropical medicine and hygiene · 2024Article
- Biscuits: a systematic review and meta-analysis of improving the nutritional quality and health benefits.Food production, processing and nutrition · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Micronutrient deficiencies are associated with impaired growth and cognitive function. A school-based fortification program might benefit schoolchildren but a high prevalence of parasite infestation might affect effectiveness. A randomized, double-blind, placebo-controlled 2 × 2 factorial trial was conducted to assess the efficacy of multi-micronutrient fortified biscuits with or without de-worming on growth, cognitive function, and parasite load in Vietnamese schoolchildren. Schoolchildren (n = 510), 6-8 years of age were randomly allocated to receive albendazole or placebo at baseline and four months of multi-micronutrient fortified biscuits (FB) or non-fortified biscuits. Children receiving FB for four months scored higher on two cognitive tests: Raven's Colored Progressive Matrices and the Digit Span Forward test. Children receiving albendazole plus FB had the lowest parasite load after four months. In children receiving FB, mid-upper arm circumference was slightly improved (+0.082 cm) but there were no differences in other indexes of anthropometry. Combining multi-micronutrient fortified biscuits with de-worming is an effective strategy.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.