Evidence map›Paper›PMID 32410611›Full record

ArticleBMC public health2020

Overweight and obesity of school-age children in El Salvador according to two international systems: a population-based multilevel and spatial analysis.

Wilton Pérez, Paul Melgar, Ana Garcés, Ana Daysi de Marquez, Gerardo Merino, Carolina Siu

Open access · goldAbstract read
In one paragraph

Article in BMC public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 14% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Accuracy of international growth charts to assess nutritional status in children and adolescents: a systematic review.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2022
    Pooled it
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  4. Observational
  5. Impact of BMIFrontiers in pediatrics · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Wilton PérezInstitute of Nutrition of Central America and Panama-INCAP, Calzada Roosvelt 6-25, zona 11, Guatemala, Guatemala. wperez@incap.int.
Paul MelgarInstitute of Nutrition of Central America and Panama-INCAP, Calzada Roosvelt 6-25, zona 11, Guatemala, Guatemala.
Ana GarcésInstitute of Nutrition of Central America and Panama-INCAP, Calzada Roosvelt 6-25, zona 11, Guatemala, Guatemala.
Ana Daysi de MarquezConsejo Nacional de Seguridad Alimentaria y Nutricional-CONASAN, San Salvador, El Salvador.
Gerardo MerinoInstitute of Nutrition of Central America and Panama-INCAP, Calzada Roosvelt 6-25, zona 11, Guatemala, Guatemala.
Carolina SiuInstitute of Nutrition of Central America and Panama-INCAP, Calzada Roosvelt 6-25, zona 11, Guatemala, Guatemala.
Institute of Nutrition of Central America and Panama · GT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe World Health Organization (WHO-2007) and the International Obesity Task Force (IOTF-Cole) systems assess child weight status. However, derived estimations often differ. We aimed to a) compare the prevalence of overweight and obesity, b) analyze individual and contextual factors associated with child weight using multilevel analysis and c) explore the spatial distribution of overweight and obesity using both classification systems.

methodsWe used data from the 2015/2016 National School Height and Weight Census in El Salvador. Information on 111,991 children aged 6.0-9.9 years attending the first grade was analyzed. Body mass index Z-score (BMIZ), overweight and obesity were defined with both classification systems. Weighted kappa was used to measure agreement. Child, school and municipal potential determinants of BMIZ were examined by multilevel analysis. Municipal spatial clustering of overweight and obesity was tested using Moran's Index and Getis-ord Gi* statistics.

resultsThe combined prevalence of overweight and obesity was higher according to the WHO system than the IOTF (30.4% vs 23.1%). The weighted kappa was 0.83. Boys, children attending urban schools, children attending private schools, and children residing in municipalities with high human development index had higher BMIZ than their counterparts. The Moran's indexes were positives and significant. Clusters of high prevalence (above the national prevalence) of overweight and obesity were found in 29 municipalities using the WHO and IOTF systems. For obesity, 28 and 23 municipalities in clusters of high prevalence were detected using the WHO and IOTF criteria, respectively.

conclusionsOverweight and obesity is high among school-age children in El Salvador. The prevalence of overweight and obesity was higher when using the WHO system, as compared to the IOTF system. Irrespective of the classification system, the multilevel and spatial analysis derived similar interpretations. These results support the need for national preventive interventions with targeting strategies to reduce overweight and obesity in school-age children.

Indexed as

Body Mass IndexBody WeightAdvisory CommitteesChildCitiesEl SalvadorFemaleHumansMaleOverweightPediatric ObesityPopulation SurveillancePrevalenceResidence CharacteristicsSchoolsSpatial AnalysisEl SalvadorIOTF-ColeMultilevelObesityOverweightSchool-agedSpatialWHO-2007

Identifiers

PMID32410611
PMCPMC7227092
OpenAlexW3024604861

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

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.