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Chronic bronchitis in textile workers

R M Niven1, A M Fletcher, C A Pickering

  • 1Department of Occupational and Environmental Medicine, North West Lung Centre, Wythenshawe Hospital, Manchester, UK.

Thorax
|January 1, 1997
PubMed
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Textile workers exposed to cotton dust have a higher prevalence of chronic bronchitis, even after accounting for smoking and other factors. This occupational exposure is linked to a significant decline in lung function.

Area of Science:

  • Occupational Medicine
  • Respiratory Medicine
  • Environmental Health

Background:

  • Occupational exposure to cotton dust is a known cause of byssinosis.
  • This study investigates the association between cotton exposure and chronic bronchitis in textile workers.

Purpose of the Study:

  • To determine if cotton dust exposure is associated with chronic bronchitis, independent of other risk factors.
  • To assess the impact of chronic bronchitis on lung function in cotton textile workers.

Main Methods:

  • A cohort of 2991 textile workers was studied using respiratory questionnaires and lung function tests.
  • Exposure to cotton dust and airborne endotoxins was measured.
  • A control group of man-made fibre textile workers was used for comparison.

Related Experiment Videos

  • Case-referent studies were conducted to analyze the effect of chronic bronchitis on lung function.

    • Main Results:

    • Cotton workers showed a significantly higher prevalence of chronic bronchitis, especially those over 45 (OR 2.51).
    • Cumulative cotton dust exposure was strongly associated with chronic bronchitis (p < 0.0005), even after adjusting for age, sex, smoking, and ethnicity.
    • Chronic bronchitis diagnosis correlated with a small but significant decrease in FEV1 and FVC.

    Conclusions:

    • Chronic bronchitis is more prevalent in cotton textile workers compared to man-made fibre workers.
    • Cotton dust exposure exacerbates the risk of chronic bronchitis, acting additively with smoking.
    • A diagnosis of chronic bronchitis in this population is associated with measurable lung function impairment.