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Respiratory findings in livestock farmworkers
J Mustajbegovic1, E Zuskin, E N Schachter
1Andrija Stampar School of Public Health Zagreb, Croatia.
Journal of Occupational and Environmental Medicine
|June 20, 2001
Summary
Livestock farmworkers experience higher rates of acute and chronic respiratory symptoms, including occupational asthma. Employment duration and smoking significantly impact lung function and symptom development in these workers.
Area of Science:
- Environmental Health
- Occupational Medicine
- Pulmonary Medicine
Background:
- Livestock farmworkers are potentially exposed to respiratory hazards.
- Previous studies suggest a link between farming and respiratory issues.
Purpose of the Study:
- To investigate the prevalence of respiratory symptoms and lung function in livestock farmworkers.
- To identify risk factors associated with respiratory problems in this population.
Main Methods:
- Cross-sectional study of 236 livestock farmworkers (169 male, 67 female).
- Utilized a modified British Medical Research Council questionnaire for respiratory symptoms.
- Assessed lung function through maximum expiratory flow-volume curves (FVC, FEV1, FEF50, FEF25).
Main Results:
- Significantly higher prevalence of chronic respiratory symptoms (e.g., chronic cough, dyspnea) in farmers compared to controls.
- Occupational asthma diagnosed in 3.6% of males and 1.5% of females.
- Acute work-related symptoms like dry cough (52.2%) and shortness of breath (44.9%) were common.
- Logistic regression showed smoking significantly affected most chronic symptoms.
- Multivariate analysis indicated employment length and smoking impacted lung function.
Conclusions:
- Livestock farming employment is associated with increased acute and chronic respiratory symptoms.
- A dose-dependent relationship may exist between livestock farming exposure and respiratory health decline.
- Smoking and length of employment are significant risk factors for adverse respiratory outcomes in farmworkers.