Radiographic findings in cotton textile workers and the relationship to cigarette smoking |
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Authors: | P H Lu Y Z Hong N Y Shi W D Zhang C S Dai J W Huang X X Qin M Z Liu D H Tong |
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Affiliation: | 1. Medical School, University of Crete, Heraklion, Crete, Greece;2. Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA;3. Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece;4. Department of Biology, Temple University, Philadelphia, PA, USA;5. Division of Endocrinology, Brigham and Women''s Hospital, Harvard Medical School, Boston, MA, USA;6. Department of Biology, University of Crete, Greece;7. Department of Biology, University of Athens, Greece;8. Department of Toxicology & Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran, Iran;9. Department of Toxicology & Forensic Science, Medical School, University of Crete, Voutes Campus, Heraklion 71003, Greece |
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Abstract: | A group of 140 cotton textile workers from Shanghai, Shandong, Guangxi, and Beijing have had their chest radiographs taken using similar requirements. Most had come from the preparatory departments of cotton mills and had a history of exposure to cotton dust for at least 20 years. As controls, 140 healthy individuals with no dust exposure were matched with respect to sex, age, and smoking history. All the radiographs were read according to the ILO International Pneumoconiosis Classification, and the manifestations belonging to categories 0/0 and 0/1 were grouped as "normal," whereas categories 1/0, 1/1, and 1/2 and above as "abnormal." There was no significant difference in X-ray abnormalities between cotton textile workers and controls (P greater than 0.05). But when the data on the cotton textile workers and controls were combined, an appreciable difference in the incidence of radiographic abnormalities was found between smokers and non-smokers (P less than 0.001). Cotton dust exposure may induce nonspecific interstitial pulmonary changes, but these changes were exaggerated by cigarette smoking. These two factors appeared to have an additive effect on the pulmonary X-ray findings. |
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