Evidence map›Paper›PMID 41456057›Full record

SynthesisSystematic reviews2025

Food insecurity and nutritional status of Latin American and African waste pickers: a systematic review and meta-analysis.

Leonardo Eugenio Quaresma Pedra, Valentina Starling de Oliveira Pinto, Aline Alves Ferreira, Nathalia Sernizon Guimarães

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Systematic reviews, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

4 authors.

Leonardo Eugenio Quaresma PedraDepartment of Nutrition, School of Nursing, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Valentina Starling de Oliveira PintoDepartment of Nutrition, School of Nursing, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Aline Alves FerreiraDepartment of Social and Applied Nutrition, Josué de Castro Institute of Nutrition, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
Nathalia Sernizon GuimarãesDepartment of Nutrition, School of Nursing, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil. nasernizon@gmail.com.ORCID 0000-0002-0487-0500

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionFood insecurity is the violation of this right to regular and permanent access to quality food in sufficient quantity without compromising other essential needs and is associated with an increase in non-communicable chronic diseases (NCDs). Recyclable waste collectors' vulnerable social groups face a high risk of food insecurity due to low income, precarious working conditions, and a lack of public policies targeting them.

objectiveThis systematic review aimed to investigate the prevalence of food insecurity as well as changes in nutritional status among recyclable waste collectors.

methodsThe review followed the Cochrane guidelines and was registered in PROSPERO. Five databases were searched and observational studies (cross-sectional, case--control, and cohort) were included. The primary outcome was the prevalence of food insecurity and secondary outcomes were nutritional status such as underweight, overweight, and obese. Meta-analysis was performed using the pooled crude proportions (PRAW) method and random effects in software R version 4.1.1.

resultsThe search identified 10 studies involving 788 waste collectors. The prevalence of food insecurity was high, reaching 71% with Brazil showing the highest prevalence (77%). Overweight affected 47% of participants, with higher rates in Brazil (52%) compared to South Africa (25%). Additionally, 29% of the collectors were obese.

conclusionThe high prevalence of food insecurity and overweight among recyclable waste collectors highlights the urgent need for specific public policies for this group. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42025645499.

Indexed as

Food InsecurityFood SupplyNutritional StatusRecyclingAfricaHumansLatin AmericaObesityOverweightHungerNutritionNutritional statusRecyclable waste collectorsSustainability

Identifiers

PMID41456057
PMCPMC12805774

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.