Evidence map›Paper›PMID 32321058›Full record

ArticleRevista de saude publica2020

Are laws restricting soft drinks sales in Brazilian schools able to lower their availability?

Catarina Machado Azeredo, Maria Alvim Leite, Fernanda Rauber, Camila Zancheta Ricardo, Renata Bertazzi Levy

Abstract readComparative Study
In one paragraph

Article in Revista de saude publica, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

7 citing papers in PubMed.

  1. Do Higher-Quality Regulatory Measures Promote a Healthier School Food Environment?International journal of environmental research and public health · 2026
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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

5 authors.

Catarina Machado AzeredoUniversidade Federal de Uberlândia. Faculdade de Medicina. Uberlândia, MG, Brasil.ORCID http://orcid.org/0000-0002-6189-4429
Maria Alvim LeiteUniversidade de São Paulo. Faculdade de Medicina. Programa de Pós-graduação em Saúde Coletiva. São Paulo, SP, Brasil.ORCID http://orcid.org/0000-0002-2774-7126
Fernanda RauberUniversidade de São Paulo. Faculdade de Saúde Pública. Departamento de Nutrição. São Paulo, SP, Brasil.ORCID http://orcid.org/0000-0001-9693-7954
Camila Zancheta RicardoUniversidade de São Paulo. Faculdade de Medicina. Programa de Pós-graduação em Saúde Coletiva. São Paulo, SP, Brasil.ORCID http://orcid.org/0000-0003-3643-302X
Renata Bertazzi LevyUniversidade de São Paulo. Faculdade de Medicina. Departamento de Medicina Preventiva, São Paulo, SP, Brasil.ORCID http://orcid.org/0000-0001-5388-7002

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo describe students protected by laws and exposed to soft drinks sales and assess whether forbidding laws are associated with lower availability of these beverages.

methodsWe identified laws forbidding non-government administered cafeterias or sales of soft drinks in schools in the 27 Brazilian state capitals. Data on soft drinks sales were obtained from Pesquisa Nacional de Saúde do Escolar 2015 (PeNSE - National Survey of School Health 2015), for a representative sample of 9th graders from public and private schools. Students were attributed with the status of their school regarding the law and sale of soft drinks. Co-variables were school status (public or private), school size, geographic regions, mother's educational level, score of goods and services. We performed multivariate analyses using Poisson regression.

resultsThe total of 23 laws forbidding sales of soft drinks covered 63.0% of capitals, comprising 56.9% of students. Law coverage was higher among students from more developed regions (67.6%) and in public schools (60.6%), compared with those from less developed regions (38.0%) and private schools (45.8%). Soft drinks were available for 33.9% of students. Students attending public schools in less developed regions had the lowest availability of soft drinks, regardless of law coverage (14.8%; 12.0%); while students attending private schools in these regions had a high availability, regardless of law coverage (82.1%; 73.4%). Restrictive laws were associated with lower sales of soft drinks in more developed regions, and restrictions had a greater association with the availability of soft drinks in public schools (PR = 0.25; 95%CI = 0.15-0.41), compared with private schools (PR = 0.48; 95%CI = 0.35-0.66).

conclusionLaws restricting soft drinks in schools were associated with fewer sales in more developed regions. Private schools were less compliant with the law than public schools. A broadly enforced national law could reduce the availability of soft drinks in schools.

Indexed as

BrazilCarbonated BeveragesCommerceGuideline AdherenceHumansPrivate SectorPublic SectorSchoolsStudentsSurveys and Questionnaires

Identifiers

PMID32321058
PMCPMC7135055

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.