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Updated: Jul 17, 2026

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Surgical Placement of Catheters for Long-term Cardiovascular Exercise Testing in Swine
Published on: February 9, 2016
Lung function and farm size predict healthy worker effect in swine farmers
Liliane Chénard1, Ambikaipakan Senthilselvan, Vaneeta K Grover
1Institute of Agricultural Rural and Environmental Health, University of Saskatchewan, Saskatoon, SK, Canada. lccl82@gmail.com
Chest
|January 16, 2007
Summary
A significant healthy worker effect exists in the swine industry. Factors like herd size and lung function predict whether farmers continue working, impacting respiratory health outcomes.
Area of Science:
- Occupational Health
- Environmental Medicine
- Pulmonary Medicine
Background:
- Swine farmers face airborne contaminants linked to respiratory issues.
- Understanding the healthy worker effect is crucial for this population.
Purpose of the Study:
- To investigate factors influencing the healthy worker effect in swine farmers.
- Longitudinal follow-up at 4 and 13 years.
Main Methods:
- Prospective study comparing swine farmers and nonexposed rural residents.
- Utilized consistent questionnaires and spirometry over time.
- Assessed work continuity and lung function changes.
Main Results:
- Reduced lung function (FEV1/FVC, FEF25-75%) observed in those who quit swine farming.
- Larger herd size at baseline predicted quitting.
- Interim lung function predicted continued swine farming.
Conclusions:
- A notable healthy worker effect is present in swine farmers.
- Herd size and interim lung function are significant predictors of work continuation in the industry.
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