Evidence map›Paper›PMID 34246223›Full record

ArticleBMC cardiovascular disorders2021

Ten-year risk of fatal cardiovascular disease and its association with metabolic risk factors among waste pickers in South Africa.

Felix Made, Engelbert A Nonterah, Nonhlanhla Tlotleng, Vusi Ntlebi, Nisha Naicker

Open access · goldAbstract read
In one paragraph

Article in BMC cardiovascular disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.1field-weighted citation impact, top 65% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Factors Associated with Nutritional Status in Grassroots Recyclers in Ecuador: A Machine Learning Approach.International journal of environmental research and public health · 2026
    Article
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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 at 2 institutions in 3 countries.

Felix MadeEpidemiology and Surveillance Section, National Institute for Occupational Health, National Health Laboratory Service, Johannesburg, 2000, South Africa. FelixM@nioh.ac.za.ORCID 0000-0003-0052-9011
Engelbert A NonterahNavrongo Health Research Centre, Ghana Health Service, Navrongo, Ghana.
Nonhlanhla TlotlengEpidemiology and Surveillance Section, National Institute for Occupational Health, National Health Laboratory Service, Johannesburg, 2000, South Africa.
Vusi NtlebiEpidemiology and Surveillance Section, National Institute for Occupational Health, National Health Laboratory Service, Johannesburg, 2000, South Africa.
Nisha NaickerEpidemiology and Surveillance Section, National Institute for Occupational Health, National Health Laboratory Service, Johannesburg, 2000, South Africa.
National Health Laboratory Service · ZAUtrecht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCardiovascular disease (CVD) is the leading cause of death among non-communicable diseases in South Africa. Several metabolic risk factors contribute to the development of CVD. Informal workers such as waste pickers could be unhealthy lifestyle naive, and most public health research on CVD does not include this understudied population. This study estimated the 10-year risk of fatal CVD and its association with metabolic risk factors in an understudied study population of waste pickers in Johannesburg, South Africa.

methodsA cross-sectional survey was conducted among waste pickers in two landfill sites in Johannesburg. We used the Systematic Coronary Risk Evaluation (SCORE) risk charts to estimate the 10-year risk of fatal CVD. We then employed ordinary least squares regression to assess the association between the 10-year risk of fatal CVD with metabolic risk factors. Other variables adjusted in the regression model were HIV status, education, income, injuries from work, clinic visits in the previous 12 months, and alcohol consumption.

resultsA total of 370 waste pickers were included in this analysis, 265 (73.41%) were males. The mean age of the participants was 34 years. The majority were between the age of 20 and 39 years. More than 55% of the waste pickers did not visit a clinic in the previous 12 months, and 68.57% were smoking. The 10-year survival probability from CVD was more than 99% for both males and females. In the multivariable regression model, elevated blood glucose showed a non-significant increase in the mean percentage of 10-year risk of fatal CVD. Waste pickers who were overweight/obese, and hypertensive had high statistically significant mean percentages of the 10-year risk of fatal CVD compared to those who did not have the metabolic risk factors.

conclusionsPrevention of 10-year risk of fatal CVD in this understudied population of waste pickers should target the control of obesity, hypertension, and diabetes. Health awareness and education for waste pickers will be an important step in reducing the burden of these metabolic risk factors. We further recommend that health systems should recognize waste pickers as a high-risk group and consider extensive CVDs surveillance.

Indexed as

Waste Disposal FacilitiesAdultCardiometabolic Risk FactorsCardiovascular DiseasesCross-Sectional StudiesDiabetes MellitusFemaleHumansHypertensionLife StyleMaleMetabolic DiseasesObesityOccupational DiseasesOccupational ExposureOccupational HealthAgeCholesterolDiabetesHypertensionObesitySmokingUnderstudied populations

Identifiers

PMID34246223
PMCPMC8272349
OpenAlexW3134887070

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

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 Socratic graph.