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Occupational asthma in snow crab-processing workers.

A Cartier, J L Malo, F Forest

    The Journal of Allergy and Clinical Immunology
    |September 1, 1984
    PubMed
    Summary
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    Occupational asthma affects 15.6% of snow crab workers. Positive skin tests to crab and smoking history are linked to its development, with many experiencing related symptoms like rhinoconjunctivitis and urticaria.

    Area of Science:

    • Occupational Medicine
    • Allergology
    • Pulmonology

    Background:

    • Occupational asthma is a significant concern in seafood processing.
    • Snow crab processing involves exposure to potential respiratory sensitizers.

    Purpose of the Study:

    • To determine the prevalence of occupational asthma in snow crab processing industries.
    • To identify risk factors associated with occupational asthma in this population.

    Main Methods:

    • A cross-sectional study involving 313 employees using questionnaires, skin prick tests (including crab extracts), and spirometry.
    • Diagnostic confirmation through specific inhalation challenges, peak expiratory flow rate monitoring, and bronchial responsiveness testing.

    Main Results:

    Related Experiment Videos

    • A prevalence of 15.6% (46 of 313) for occupational asthma was found.
    • Positive skin tests to crab allergens (p < 0.001) and smoking history (p = 0.03) were significantly associated with occupational asthma.
    • Associated symptoms included rhinoconjunctivitis (76%) and urticaria (35%) in affected workers.

    Conclusions:

    • Occupational asthma is prevalent in snow crab processing.
    • Crab allergen sensitization and smoking are risk factors.
    • Early diagnosis and prevention strategies are crucial for affected workers.