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Long-term effect of the Brazilian Workers’ Food Program on the nutritional status of manufacturing workers: A population-based prospective cohort study

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  • Karina G Torres
  • Ingrid W L Bezerra
  • Gabriela S Pereira
  • Raiane M Costa
  • Anissa M Souza
  • Antonio G Oliveira

Abstract

Background: The Brazilian Workers Food Program (WFP) is a public policy program of nutritional assistance to workers, with the main objective of improving nutritional conditions, which was implemented 40 years ago and serves over 21.4 million workers. Objectives: To compare the long-term change in anthropometric indicators of the nutritional status and dietary intake between workers of manufacturing industries adherent to and non-adherent to the WFP. Methods: A prospective cohort study, based on a combined stratified and multistage probability sampling, was carried out, with two waves with a 4-year interval. The change in body mass index (BMI), waist circumference (WC) and dietary intake at lunch by the 24-hour recall method were compared between groups with analysis of covariance. Results: A total of 273 workers in 16 industries from an initial cohort of 1069 workers in 26 industries of the State of Rio Grande do Norte in Brazil were evaluated in the two waves. The mean age was 37±10 years and 53.1% were male, with no differences between groups in age and sex distribution. BMI increased in both groups (0.44 kg/m2 in non-WFP, p = 0.003, and 0.56 kg/m2 in WFP, p = 0.0006) and WC increased in the WFP group (1.50 cm, p = 0.0006). BMI change over time did not show statistical differences between groups (p = 0.54) but WC had a greater increase in the WFP group (difference 1.37 cm, p = 0.047). There were no differences between groups in the change over time of the dietary intake. Conclusion: BMI and WC increased over time in manufacturing workers of industries both adherent and non-adherent to the WFP, but with a greater increase of WC in the WFP group. In order to achieve the objectives of the WFP, there will be a need for periodic evaluation and monitoring of nutritional indicators in these workers and implementation of monitoring and enforcement actions of the WFP.

Suggested Citation

  • Karina G Torres & Ingrid W L Bezerra & Gabriela S Pereira & Raiane M Costa & Anissa M Souza & Antonio G Oliveira, 2020. "Long-term effect of the Brazilian Workers’ Food Program on the nutritional status of manufacturing workers: A population-based prospective cohort study," PLOS ONE, Public Library of Science, vol. 15(4), pages 1-12, April.
    • Handle: RePEc:plo:pone00:0231216
    DOI: 10.1371/journal.pone.0231216
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    References listed on IDEAS

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    1. Ingrid W Leal Bezerra & António Gouveia Oliveira & Liana G B Pinheiro & Célia M M Morais & Luciano M B Sampaio, 2017. "Evaluation of the nutritional status of workers of transformation industries adherent to the Brazilian Workers’ Food Program. A comparative study," PLOS ONE, Public Library of Science, vol. 12(2), pages 1-11, February.
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