Cited by 8Thyroid Disorders and TreatmentsAgriculture and Farm SafetyPesticide Exposure and Toxicity

Farming activity and risk of treated thyroid disorders: insights from the TRACTOR project, a nationwide cohort study.

Open access
Petit, Pascal, Chamot, Sylvain, Al-Salameh, Abdallah, Cancé, Christophe, Desailloud, Rachel, Bonneterre, Vincent·2024·Environmental Research

Abstract

BACKGROUND: Epidemiological data regarding thyroid diseases are lacking, in particular for occupationally exposed populations. OBJECTIVES: To compare the risk of hypothyroidism and hyperthyroidism between farming activities within the complete population of French farm managers (FMs). METHODS: Digital health data from retrospective administrative databases, including insurance claims and electronic health/medical records, was employed. This cohort data spanned the entirety of French farm managers (FMs) who had undertaken work at least once from 2002 to 2016. Survival analysis with the time to initial medication reimbursement as timescale was used to examine the association (hazard ratio, HR) between 26 specific farming activities and both treated hypothyroidism and hyperthyroidism. A distinct model was developed for each farming activity, comparing FMs who had never engaged in the specific farming activity between 2002 and 2016 with those who had. All analyses were adjusted for potential confounders (e.g., age), and sensitivity analyses were conducted. RESULTS: Among 1088561 FMs (mean age 46.6 [SD 14.1]; 31% females), there were 31834 hypothyroidism cases (75% females) and 620 hyperthyroidism cases (67% females), respectively. The highest risks were observed for cattle activities for both hyperthyroidism (HR ranging from 1.75 to 2.42) and hypothyroidism (HR ranging from 1.41 to 1.44). For hypothyroidism, higher risks were also observed for several animal farming activities (pig, poultry, and rabbit), as well as fruit arboriculture (HR = 1.22 [1.14-1.31]). The lowest risks were observed for activities involving horses. Sex differences in the risk of hypothyroidism were observed for eight activities, with the risk being higher for males (HR = 1.09 [1.01-1.20]) than females in viticulture (HR = 0.97 [0.93-1.00]). The risk of hyperthyroidism was two times higher for male dairy farmers than females. DISCUSSION: Our findings offer a comprehensive overview of thyroid disease risks within the FM community. Thyroid ailments might not stem from a single cause but likely arise from the combined effects of various causal agents and triggering factors (agricultural exposome). Further investigation into distinct farming activities-especially those involving cattle-is essential to pinpoint potential risk factors that could enhance thyroid disease monitoring in agriculture.

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Crossref · 10.1016/j.envres.2024.118458

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Authors
Petit, P., Chamot, S., Al-Salameh, A., Cancé, C., Desailloud, R., & Bonneterre, V.
Affiliations
  • Autonomie, Gérontologie, E-santé, Imagerie et Société (FR)
  • Centre Hospitalier Universitaire Amiens-Picardie (FR)
  • Institut polytechnique de Grenoble (FR)
Corresponding author
Petit, Pascal
Venue
Environmental Research
Publisher
Elsevier BV
Published
2024-05
Volume
249
Pages
118458
ISSN
0013-9351 (ISSN-L)
OpenAlex
W4391848890
Cited by
8
References
74
Citations by year
2026: 1 · 2025: 5 · 2024: 2
FWCI
2.62
Type
journal article
Language
en
Open access
Locations
  • Environmental Research (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
Agence Nationale de la Recherche (ANR-10-AIRT-05, ANR-15-IDEX-02)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Agriculture and Farm Safety
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Pesticide Exposure and Toxicity
Keywords
farming activities, thyroid dysfunction, hypothyroidism, hyperthyroidism, occupational exposure, cattle farming, dairy farming, sex differences, farm managers, viticulture, arboriculture, poultry farming, pig farming, horses
MeSH terms
Farmers, Adult, Aged, Agriculture, Animals, Female, France, Humans, Hyperthyroidism, Hypothyroidism, Male, Middle Aged, Retrospective Studies, Risk Factors, Thyroid Diseases, Cohort Studies, Occupational Exposure

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