Trial reportPLoS neglected tropical diseases2015
The Effect of Deworming on Growth in One-Year-Old Children Living in a Soil-Transmitted Helminth-Endemic Area of Peru: A Randomized Controlled Trial.
Trial report in PLoS neglected tropical diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT01314937 (Improving Early Childhood Growth and Development in Resource-poor LMICs by Incorporating Deworming in Integrated Child Health Care), which is not on this map. Cited by 20 papers, 7 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.
Improving Early Childhood Growth and Development in Resource-poor LMICs by Incorporating Deworming in Integrated Child Health Care
Who cites it
20 citing papers in PubMed, 7 syntheses or guidelines pooled it, 44 citations in OpenAlex.
- Systematic review to evaluate a potential association between helminth infection and physical stunting in children.Parasites & vectors · 2022Pooled it
- Drivers of stunting reduction in Peru: a country case study.The American journal of clinical nutrition · 2020Pooled it
- Anthelmintic drugs for treating ascariasis.The Cochrane database of systematic reviews · 2020Pooled it
- Public health deworming programmes for soil-transmitted helminths in children living in endemic areas.The Cochrane database of systematic reviews · 2019Pooled it
- Interventions to improve linear growth during complementary feeding period for children aged 6-24 months living in low- and middle-income countries: a systematic review and network meta-analysis.Gates open research · 2019Pooled 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
- Complexities and Perplexities: A Critical Appraisal of the Evidence for Soil-Transmitted Helminth Infection-Related Morbidity.PLoS neglected tropical diseases · 2016Pooled it
- Trial
- The effect of cumulative soil-transmitted helminth infections over time on child development: a 4-year longitudinal cohort study in preschool children using Bayesian methods to adjust for exposure misclassification.International journal of epidemiology · 2018Trial
- A Double-Blind Randomized Controlled Trial of Maternal Postpartum Deworming to Improve Infant Weight Gain in the Peruvian Amazon.PLoS neglected tropical diseases · 2017Trial
- Adverse Events from a Randomized, Multi-Arm, Placebo-Controlled Trial of Mebendazole in Children 12-24 Months of Age.The American journal of tropical medicine and hygiene · 2016Trial
- Epidemiology of intestinal parasite infections and multiparasitism and their impact on growth and hemoglobin levels during childhood in tropical Ecuador: A longitudinal study using molecular detection methods.PLoS neglected tropical diseases · 2025Article
- Effect of Deworming on Health Outcomes among Children Aged 12-59 Months in Tanzania: A Multilevel Mixed Effects Analysis.Journal of nutrition and metabolism · 2023Article
- Article
- Associated factors of the co-occurrence of trachoma and soil-transmitted helminthiases in children 1 to 9 years old in rural communities of the Amazon basin in Loreto Department, Peru: Results from a population-based survey.PLoS neglected tropical diseases · 2022Article
- Impact of intestinal parasites on microbiota and cobalamin gene sequences: a pilot study.Parasites & vectors · 2020Article
- Mass deworming for improving health and cognition of children in endemic helminth areas: A systematic review and individual participant data network meta-analysis.Campbell systematic reviews · 2019Review
- Deworming in pre-school age children: A global empirical analysis of health outcomes.PLoS neglected tropical diseases · 2018Article
- The effect of deworming on early childhood development in Peru: A randomized controlled trial.SSM - population health · 2015Article
- Correction: The Effect of Deworming on Growth in One-Year-Old Children Living in a Soil-Transmitted Helminth-Endemic Area of Peru: A Randomized Controlled Trial.PLoS neglected tropical diseases · 2015Article
Corrections and comments
- Erratum issued
Authors and funding
10 authors at 5 institutions in 4 countries.
Funding
Abstract
backgroundAppropriate health and nutrition interventions to prevent long-term adverse effects in children are necessary before two years of age. One such intervention may include population-based deworming, recommended as of 12 months of age by the World Health Organization in soil-transmitted helminth (STH)-endemic areas; however, the benefit of deworming has been understudied in early preschool-age children. METHODOLOGY/PRINCIPAL
findingsA randomized, double-blind, placebo-controlled trial was conducted to determine the effect of deworming (500 mg single-dose crushed mebendazole tablet) on growth in one-year-old children in Iquitos, Peru. Children were enrolled during their routine 12-month growth and development clinic visit and followed up at their 18 and 24-month visits. Children were randomly allocated to: Group 1: deworming at 12 months and placebo at 18 months; Group 2: placebo at 12 months and deworming at 18 months; Group 3: deworming at both 12 and 18 months; or Group 4: placebo at both 12 and 18 months (i.e. control group). The primary outcome was weight gain at the 24-month visit. An intention-to-treat approach was used. A total of 1760 children were enrolled between September 2011 and June 2012. Follow-up of 1563 children (88.8%) was completed by July 2013. STH infection was of low prevalence and predominantly light intensity in the study population. All groups gained between 1.93 and 2.05 kg on average over 12 months; the average difference in weight gain (kg) compared to placebo was: 0.05 (95% CI: -0.05, 0.17) in Group 1; -0.07 (95%CI: -0.17, 0.04) in Group 2; and 0.04 (95%CI: -0.06, 0.14) in Group 3. There was no statistically significant difference in weight gain in any of the deworming intervention groups compared to the control group.
conclusionsOverall, with one year of follow-up, no effect of deworming on growth could be detected in this population of preschool-age children. Low baseline STH prevalence and intensity and/or access to deworming drugs outside of the trial may have diluted the potential effect of the intervention. Additional research is required to overcome these challenges and to contribute to strengthening the evidence base on deworming.
trial registrationClinicalTrials.gov (NCT01314937).
Indexed as
Identifiers
What OpenQuestion holds
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.