Trial reportJournal of obesity2014
School-based obesity prevention intervention in Chilean children: effective in controlling, but not reducing obesity.
Trial report in Journal of obesity, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 10 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
25 citing papers in PubMed, 10 syntheses or guidelines pooled it, 60 citations in OpenAlex.
- Interventions to prevent obesity in children aged 5 to 11 years old.The Cochrane database of systematic reviews · 2024Pooled it
- Comparative effectiveness of school-based obesity prevention programs for children and adolescents: a systematic review and network meta-analysis.Frontiers in public health · 2024Pooled it
- Cardiometabolic risk factors in South American children: A systematic review and meta-analysis.PloS one · 2023Pooled it
- Sin taxes and their effect on consumption, revenue generation and health improvement: a systematic literature review in Latin America.Health policy and planning · 2021Pooled it
- Systematic Review of Setting-Based Interventions for Preventing Childhood Obesity.BioMed research international · 2021Pooled it
- Identification and evaluation of risk of generalizability biases in pilot versus efficacy/effectiveness trials: a systematic review and meta-analysis.The international journal of behavioral nutrition and physical activity · 2020Pooled it
- A systematic review and meta-analysis of the overall effects of school-based obesity prevention interventions and effect differences by intervention components.The international journal of behavioral nutrition and physical activity · 2019Pooled it
- Interventions for preventing obesity in children.The Cochrane database of systematic reviews · 2019Pooled it
- Effect of educational interventions on health in childhood: A meta-analysis of randomized controlled trials.Medicine · 2018Pooled it
- Systematic Review of Physical Education-Based Physical Activity Interventions Among Elementary School Children.The journal of primary prevention · 2018Pooled it
- Decreased Body Mass Index in Schoolchildren After Yearlong Information Sessions With Parents Reinforced With Web and Mobile Phone Resources: Community Trial.Journal of medical Internet research · 2016Trial
- School-Based Interventions to Prevent Overweight in Latin America: A Scoping Review and Policy Analysis.Nutrients · 2025Article
- Interventions to prevent obesity in school-aged children 6-18 years: An update of a Cochrane systematic review and meta-analysis including studies from 2015-2021.EClinicalMedicine · 2022Article
- Clinical and school-based intervention strategies for youth obesity prevention: A systematic review.Frontiers in sports and active living · 2022Review
- Entorno social y obesidad infantil: implicaciones para la investigación y la práctica en Estados Unidos y en los países latinoamericanos.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2021Article
- The Effectiveness of School-Based Interventions on Obesity-Related Behaviours in Primary School Children: A Systematic Review and Meta-Analysis of Randomised Controlled Trials.Children (Basel, Switzerland) · 2021Review
- The social environment and childhood obesity: Implications for research and practice in the United States and countries in Latin America.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2021Article
- Cross-Sectional and Longitudinal Associations between Non-School Time Physical Activity, Sedentary Time, and Adiposity among Boys and Girls: An Isotemporal Substitution Approach.International journal of environmental research and public health · 2021Article
- Interventions to prevent obesity in Latinx children globally: protocol for a systematic review and meta-analysis.Systematic reviews · 2021Article
- Long-Term Dietary and Physical Activity Interventions in the School Setting and Their Effects on BMI in Children Aged 6-12 Years: Meta-Analysis of Randomized Controlled Clinical Trials.Healthcare (Basel, Switzerland) · 2021Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo evaluate the effectiveness of a 12-month multicomponent obesity prevention intervention. Setting. 9 elementary schools in Santiago, Chile. Subjects. 6-8 y old low-income children (N = 1474).
designRandomized controlled study; 5 intervention/4 control schools. We trained teachers to deliver nutrition contents and improve the quality of PE classes. We determined % healthy snacks brought from home, children's nutrition knowledge, nutritional status, duration of PE classes, and % time in moderate/vigorous activity (MVA). Effectiveness was determined by comparing Δ BMI Z between intervention and control children using PROCMIXED.
results% obesity increased in boys from both types of schools and in girls from control schools, while decreasing in girls from intervention schools (all nonsignificant). % class time in MVA declined (24.5-16.2) while remaining unchanged (24.8-23.7%) in classes conducted by untrained and trained teachers, respectively. In boys, BMI Z declined (1.33-1.24) and increased (1.22-1.35) in intervention and control schools, respectively. In girls, BMI Z remained unchanged in intervention schools, while increasing significantly in control schools (0.91-1.06, P = 0.024). Interaction group ∗ time was significant for boys (P < 0.0001) and girls (P = 0.004).
conclusionsThis intervention was effective in controlling obesity, but not preventing it. Even though impact was small, results showed that when no intervention is implemented, obesity increases.
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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.