Evidence map›Paper›PMID 23029413›Full record

ArticlePloS one2012

Burnt sugarcane harvesting - cardiovascular effects on a group of healthy workers, Brazil.

Cristiane Maria Galvão Barbosa, Mário Terra-Filho, André Luis Pereira de Albuquerque, Dante Di Giorgi, Cesar Grupi, Carlos Eduardo Negrão, Maria Urbana Pinto Brandão Rondon, Daniel Godoy Martinez, Tânia Marcourakis, Fabiana Almeida dos Santos and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 16% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.

  1. Pooled it
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  4. Don't Just Look East (the Other Way) When There's Smoke Billowing to the West.American journal of respiratory and critical care medicine · 2024
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  7. Getting Sympathetic About Air Pollution Exposure.Journal of the American Heart Association · 2021
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  8. Review
  9. Panel study using novel sensing devices to assess associations of PMJournal of exposure science & environmental epidemiology · 2020
    Article
  10. Heat Stress, Physiological Response, and Heat-Related Symptoms among Thai Sugarcane Workers.International journal of environmental research and public health · 2020
    Article
  11. Article
  12. Review
  13. Review
  14. Review
  15. Workers: the climate canaries.American journal of public health · 2014
    Article
  16. Article
  17. Article
  18. Brazil: What country is this?Temperature (Austin, Tex.)
    Article
  19. Rural work in the sugarcane sector and its influences on health: scoping review.Revista brasileira de medicina do trabalho : publicacao oficial da Associacao Nacional de Medicina do Trabalho-ANAMT
    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

13 authors at 2 institutions in 1 country.

Cristiane Maria Galvão BarbosaPulmonary Division - Heart Institute, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Brazil.
Mário Terra-Filho
André Luis Pereira de Albuquerque
Dante Di Giorgi
Cesar Grupi
Carlos Eduardo Negrão
Maria Urbana Pinto Brandão Rondon
Daniel Godoy Martinez
Tânia Marcourakis
Fabiana Almeida dos Santos
Alfésio Luís Ferreira Braga
Dirce Maria Trevisan Zanetta
Ubiratan de Paula Santos
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BRUniversidade de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBrazil is the world's largest producer of sugarcane. Harvest is predominantly manual, exposing workers to health risks: intense physical exertion, heat, pollutants from sugarcane burning.

designPanel study to evaluate the effects of burnt sugarcane harvesting on blood markers and on cardiovascular system.

methodsTwenty-eight healthy male workers, living in the countryside of Brazil were submitted to blood markers, blood pressure, heart rate variability, cardiopulmonary exercise testing, sympathetic nerve activity evaluation and forearm blood flow measures (venous occlusion plethysmography) during burnt sugarcane harvesting and four months later while they performed other activities in sugar cane culture.

resultsMean participant age was 31 ± 6.3 years, and had worked for 9.8 ± 8.4 years on sugarcane work. Work during the harvest period was associated with higher serum levels of Creatine Kinase - 136.5 U/L (IQR: 108.5-216.0) vs. 104.5 U/L (IQR: 77.5-170.5), (p = 0.001); plasma Malondialdehyde-7.5 ± 1.4 µM/dl vs. 6.9 ± 1.0 µM/dl, (p = 0.058); Glutathione Peroxidase - 55.1 ± 11.8 Ug/Hb vs. 39.5 ± 9.5 Ug/Hb, (p<0.001); Glutathione Transferase- 3.4±1.3 Ug/Hb vs. 3.0 ± 1.3 Ug/Hb, (p = 0.001); and 24-hour systolic blood pressure - 120.1 ± 10.3 mmHg vs. 117.0 ± 10.0 mmHg, (p = 0.034). In cardiopulmonary exercise testing, rest-to-peak diastolic blood pressure increased by 11.12 mmHg and 5.13 mmHg in the harvest and non-harvest period, respectively. A 10 miliseconds reduction in rMSSD and a 10 burst/min increase in sympathetic nerve activity were associated to 2.2 and 1.8 mmHg rises in systolic arterial pressure, respectively.

conclusionWork in burnt sugarcane harvesting was associated with changes in blood markers and higher blood pressure, which may be related to autonomic imbalance.

Indexed as

Blood PressureSaccharumAdultAgricultural Workers' DiseasesAir Pollutants, OccupationalBrazilCreatine KinaseExercise TestGlutathione PeroxidaseGlutathione TransferaseHeart RateHumansMaleMalondialdehydeOccupational ExposureParticulate MatterAir Pollutants, OccupationalCreatine KinaseGlutathione PeroxidaseGlutathione TransferaseMalondialdehydeParticulate Matter

Identifiers

PMID23029413
PMCPMC3459900
OpenAlexW2047135275

What OpenQuestion 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 OpenQuestion graph.