ArticleInternational journal of obesity (2005)2019
Associations of changes in BMI and body fat percentage with demographic and socioeconomic factors: the ELANA middle school cohort.
Article in International journal of obesity (2005), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
What it found
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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
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.
- Prevalence of overweight and obesity among Brazilian adolescents over time: a systematic review and meta-analysis.Public health nutrition · 2021Pooled it
- Adiposity trajectories from ages 11 to 22 years: 1993 Pelotas (Brazil) birth cohort.Cadernos de saude publica · 2026Article
- MULT: An allometric body mass index (ABMI) reference to assess nutritional status of multiethnic children and adolescents.PloS one · 2024Article
- The Intersectionality of Gender and Wealth in Adolescent Health and Behavioral Outcomes in Brazil: The 1993 Pelotas Birth Cohort.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2020Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectivesAdolescent weight and fat gain is determined by multiple factors. This study examined the association between changes in body fat indicators, excessive weight and fat gain, and sociodemographic factors among Brazilian adolescents over a 4-year period.
methodsBody mass index (BMI) and body fat percentage (BFP) of 809 middle school students (mean age: 11.8 ± 1.15 years) were evaluated annually, from 2010 to 2013. Linear mixed effects models were used to assess the trajectories of BMI and BFP in both boys and girls according to the type of school attended (public or private) and skin colour. General estimating equations logistic regression analyses were performed to investigate associations between sociodemographic variables and the development of overweight or high BFP.
resultsGirls from private schools (p = 0.003) and white boys (p = 0.041) experienced bigger increases in BMI, as compared to girls from public schools and black/brown boys, respectively. White boys also had an increased chance of presenting excessive weight (OR = 3.28; CI 95%: 1.13-9.52) and BFP (OR = 3.32; CI 95%: 1.38-8.01) gain than black/brown boys. Conversely, white girls were less likely to present excessive body fat gain when compared to black/brown girls (OR = 0.42; CI 95%: 0.18-0.96).
conclusionsAdolescents who experienced better socioeconomic conditions, especially boys, were more likely to have greater increases in body fat indicators. Our findings contribute to the better understanding of BMI trajectories and body composition changes during puberty, as well as demonstrates the relationship between socioeconomic variables and adiposity indicators among adolescents in middle-income countries.
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Registered trials
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