Document NGbnKV5zydx1vZByoQVQwXqvb

LUNG CANCER IN ASBESTOS MINERS of 37.2, 25.3, and 28.0 obtained from various sources for adult males in the United States. Finally, in this matter of comparison, it would appear that the world-wide experience of persons exposed to asbestos dust is not worse with respect to lung cancer than that of the unexposed population. The counties surrounding the asbestosproducing areas, in which it is presumed most of the asbestos miners live, have al most identical mortality rates with those of eight counties widely scattered through the Province, and are lower than those for the remainder of the Province, and much lower than the rate for Montreal. Since 1940 there have been 19 cases in which the diagnosis of primary cancer of the lung may be considered to have been proved. Approximately half of these cases were associated with asbestosis. AH but one died in the recognized "cancer-age" and at least one-third had only the lightest ex posure (Category I) to asbestos dust. On the basis of what are believed to be complete and reliable data, it seems fair to conclude that the asbestos miners in the Province of Quebec do not have a signif icantly higher death rate from lung cancer than do comparable segments of the general population. Furthermore, the death rate from lung cancer in the areas contiguous to the asbes tos operations is comparable to that in areas widely scattered throughout the Province of Quebec and is lower than in some urban ized areas within the Province. REFERENCES 1. Alascio Escobar, R.: Bronchial Carcinoma: Review of 200 Cases, .T. Internat. Coli. Surgeons 26:375-379 (Sept) 1956. 2. Allen, M. L.: Bronchiogenic Carcinoma As sociated with Pneumonoconiosis: Report of 2 Cases, J. Indust. Hyg. 16:346-347 (Nov.) 1934. 3. Cartier, P.: A Contribution to the Study of Asbestosis, Arch. mal. profess. 10:589-595, 1949. 4. Anderson, C. S., and Dible, J. H.: Silicosis and Carcinoma of the Lung, J. Hyg. 38:185-204 (March) 1938. 5. Baader, E. W.: Asbestosis, Deutsche med. Wchnsdir. 65:407-408 (March 17) 1939. Braun--Truan 6. Behrens, W.: Experimental Asbestosis, Schweiz. Ztschr. allg. Path. 14:275-297, 1951. 7. Behrens, W., Jr.: The Clinical Picture and Pathology of Asbestosis, Ztschr. Unfallmed. u. Berufskrankh. 45:129-140 (June 15) 1952. 8. Berbiinger, W.: Increase of Lung Cancer and Diseases Due to Dust Inhalation, Med. Klin. 27:1337-1342 (Sept. 11) 1931. 9. Berenblum, I.: Irritation and Carcinogenesis, Arch. Path. 38:233-244 (Oct) 1944. 10. Bohne: Asbestosis, Deutsche med. Wchnschr. 62:928-930 (June 5) 1936. 11. Bohme, A.: Results of Periodical Examina tions of Workers in an Asbestos Factory, Beitr. Silikose Forsch. 11:34, 1951. 12. Bowles, O.: Asbestos-Milling, Marketing and Fabrication, Information Circular No. 6869, U. S. Department of the Interior, Bureau of Mines, 1935, pp. 1-26. 13. Breslow, L.; Hoaglin, L.; Rasmussen, G., and Abrams, H. K.: Occupations and Cigarette Smoking as Factors in Lung Cancer, Am. J. Pub. Health. 44:171-181 (Feb.) 1954. 14. Bristol, L. J.: Roentgenologic Aspects of Silicosis and Asbestosis, A. M. A. Arch. Indust. Health 11:189-195 (March) 1955. 15. Cancer of the Lung: An Evaluation of the Problem, Proceedings of the Scientific Section, Annual Meeting, American Cancer Society, Inc., Nov. 3-4, 1953, New York, American Cancer Sodety, Inc., 1956. 16. Cartier, P.: Asbestosis Cancer of the Lung, in discussion on Smith, W. E.: Survey of Some Current British and European Studies of Occupa tional Tumor, Problems, A. M. A. Arch. Indust. Hyg. 5:262-263, 1952. 17. Cartier, P.: Some Clinical Observations of Asbestosis in Mine and Mill Workers, A. M. A. Arch. Indust. Health 11:204-207 (Marth) 1955. 18. Clerens, J.: Research into Pulmonary Asbes tosis in Belgium, Arch, beiges med. Sociale 8:557565 (Nov.) 1951. 19. Clynes: Asbestosis and Silicosis, Brit. M. J. 1:379, 1931. 20. Coffin, G. J.; Duryee, H. C.; Maier, H. C.; Pardee, H. E. B., and Wynter, E. L.: The Effects of Tobacco Smoking, Pane! Meeting, Bull. New York Acad. Med. 32:133-156 (Feb.) 1956. 21. Cohart, E. M.: Lung Cancer and Economic Status, Cancer 8:1126-1129 (Nov.-Dee.) 1955. 22. Cooke, W. E.: Pulmonary Asbestosis, Brit. M. J. 2:1024-1025 (Dec. 3) 1927. 23. Cureton, R. J. R.: Squamous Cell Carcinoma Occurring in Asbestosis of the Lung, Brit, J. Cancer 2:249-253 (Sept.) 1948. 24. Cutler, S. J.; Schneiderman, M. A., and Greenhouse, S. W.: Some Statistical Considera- 651 SPNY 000310