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  • Title: A study on the prevalence of chronic bronchitis in workers exposed to smoke and irritant fumes in a railway workshop.
    Author: Gupta SK, Singh SK.
    Journal: Indian J Chest Dis Allied Sci; 1992; 34(1):25-8. PubMed ID: 1521876.
    Abstract:
    In the present study 108 full time workers employed in various sections of a railway workshop and exposed to smoke and irritant fumes, and 45 matched control subjects from local administrative staff were investigated to find prevalence of chronic bronchitis. In all 18 (16.7%) workers and 4 (8.9%) control subjects had clinical evidence of chronic bronchitis. Peak expiratory flow rate less than 300 L/min was observed in 54.6% workers and 2.2% control subjects. A significantly higher prevalence of chronic bronchitis was seen in workers. The advancing age, smoking and duration of exposure had significant influence on prevalence of chronic bronchitis.
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