Occupational exposure to tobacco dust:1. Effects on the respiratory system
No Thumbnail Available
Date
1992-12-01
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Four hundred and seventy six workers who are exposed to tobacco dust and 112 nonexposed workers from the Cigarette Factory No. (1), Yangon were interviewed for respiratory symptoms and occupational history. General clinical examination was also done and recorded. Anthropometric measurements (height and weight) were taken and ventilatory functions in the form of forced vital capacity (FVC), forced expiratory volume in one second (FEV 1.0), and forced expiratory flow (FEF 25-75
) were tested. Total and respirable dust concentrations were measured at different job areas. The total dust concentration ranged from 3.1 to 12.78 mg/ m-3 and respirable dust concentration ranged from 1.72to 5.5 mg/m-3 in the production site. Higher prevalence of respiratory symptoms and chronic bron-chitis were found in the exposed than the nonexposed workers. Total dust exposure had significant effect on FEV. 1.0 (p< 0.01) and FEF25-75
( p < 0.05), and respirable dust exposure had significant effect on FEV 1.0 (p<0.025) of females. Mean lung function values of FEV 1.0 and FEF25-75
of exposed female nonsmokers were significantly lower than the nonexposed (p< 0.005 and < 0.05 respectively). Thus in the present study, chronic respiratory effects of occupational exposure to tobacco dust was observed only in females.
) were tested. Total and respirable dust concentrations were measured at different job areas. The total dust concentration ranged from 3.1 to 12.78 mg/ m-3 and respirable dust concentration ranged from 1.72to 5.5 mg/m-3 in the production site. Higher prevalence of respiratory symptoms and chronic bron-chitis were found in the exposed than the nonexposed workers. Total dust exposure had significant effect on FEV. 1.0 (p< 0.01) and FEF25-75
( p < 0.05), and respirable dust exposure had significant effect on FEV 1.0 (p<0.025) of females. Mean lung function values of FEV 1.0 and FEF25-75
of exposed female nonsmokers were significantly lower than the nonexposed (p< 0.005 and < 0.05 respectively). Thus in the present study, chronic respiratory effects of occupational exposure to tobacco dust was observed only in females.
Description
Keywords
Citation
Phyu Phyu Aung, Phone Saing, Maung Maung Cho, Htay Htay, Kyi Kyi May. Occupational exposure to tobacco dust:1. Effects on the respiratory system. Myanmar Health Sciences Research Journal. 1992; 4(3): 149-155