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HFM- 003522 TABLE 11 X-Ray abnormalities among shipyard workers employed in shipbuilding and tilip repair: major crafts rATPnnnv All crafts Painters Machinists (outside) Pipefitters Insulators Electricians Boilermakers Welders Carpenters Yean from onset of shipyard work All groups 20 or more yean Abnormal Abnormal Number Number % Number % 1000 459 46.9 185 50.8 82 44 53.7 10/26 40.0 108 58 53.7 12/32 37.5 121 66 54.5 25/34 73.6 73 38 52.0 2/7 28.6 104 56 52.9 23/34 67.8 1B7 80 51.0 41/84 48.8 117 42 35.9 25/48 52.1 69 38 55.1 12/33 36.4 831 Total 1000 459 45.9 185/364 50.8 ment of cancer of the esophagus. Again, educational programs wouidbe ofvalue. information is required for proper clin ical surveillance. 3. Assessment of the potential for ship yard asbestos disease: Household contact asbestos disease: while families of asbestos workers are at risk, it is not known whether ship yard workers tended to contaminate their homes with appreciable amounts of asbestos in the past, and whether this has resulted in disease risk. Such Necessary additional data: appropriate . _ studies of mortality experience, status of retired workers and effects of mini; mal exposure are required for complete : evaluation of the potential for future shipyard asbestos disease. Nevertheless, enough is now known to warrant rapid development of effective medical sur veillance programs. Further research can proceed apace. <3 anojL CA-A CANCER JOURNAL FOR CLINICIANS TABLE 12 X-Ray abnormalities among workers employed in shipbuilding and ship repair: less common crafts Heavy equipment operators Laborers Inside machinists Molders Lead bondets Decontamination technicians Guards w/o previous job in yard Office workers -- Draftsmen w/o previousjob in yard No. 13 7 30 12 21 12 12 37 Abnormal . 8/13 1/7 15/30 4/12 7/21 5/12 3/12 16/37 ..% 1 62 14 50 33 33 42 26 43 Reference 1. Bientz, M.; DiMenza, L.; Nebut, M., and Bignon, J.: Registredes mesotheliomes maiins de la pleure et dti peritoine. Premiere resul- tats.Nouvelle Presse Med. 6:3114,1977. 2. Greenberg, M., and Davies, T.A.L.: Meso thelioma Register 1967-68. Brit. J. Indust. Med. 31:91-104,1974. Gt Zielhuis, R.L.j.Versteeb, J.P.J., and Plan- tejdt, H.T.: Pleural mesothelioma and exposure to asbestos. Int. ArCh. Occup. Envir. Health 36:1-18.1975. 7 4. Selikoff, I.J.; Churg, J., and Hammond, E.C.: The occurrence of asbestosis among in sulation workers in the United States. Ann. N.Y. Acad. Sci. 132:139-155,1965. 5. Harries, P.G:t'Aabestosis hazards in naval dockyards. Ann. Occup. Hyg. 11:135-145,1968. L6J Stumphius, J.i Epidemiology of mesothe lioma on Waicheren Island.' Brit. J. Indust. Med. 28:59-66,1971. v W McEwen, J.; Finlayson, A.; Mair, A., and Gibson, AJid.M.: Asbestos and mesothelioma in Scotland. Int. Arch. Arbeitsmed. 28:301-311, 1971. 8. Fletcher, D.E.: A mortality study of ship yard.workers with pleural plaques. Brit. J. Indust. Med. 29:142-145,1972. 9. Harries, P.G.: Experience with asbestos disease and its control in Great Britain's Naval dockyards. Envir. Res. 11:261-267,1976. 10. Edge, J.R.: Asbestos-related disease in Barrow-in-Furness. Envir. Res. 11:244-247, 1976. 11. Edge, J.R.: Personal communication, December 16,1977. 12. Lajartre, M,, et al.: Mesotheliomes pleuraux diffus et amiante. Ouest Med. 29:615-621, 1976. 13. Fletcher, W.E.; Viles, F.J., Jr.; Gade, R.L., and Drinker, P.: A health survey of pipe covering operations in constructing naval ves sels. J. fad. Hyg. Toxicol. 28:9-16,1946. 14. Selikoff, I.J.: Disease preventioii in as bestos insulation work. Int. Symp. on Safety and Health in Shipbuilding and Ship Repairing, Helsinki, Finland, 1971. Occupational Safety and Health Series 827, ILO, Geneva,1972. 15. Selikoff, I.J.; Hammond, E.C., and Churg, J. : Carcinogenicity of amosite asbestos. Arch. Env. Health 25:183-186,1972. . Seidman, H.; Lilis, R., and Selikoff, I.J.: Short-term asbestos exposure and cancer risk. Proc. Third Inti; Symp. Detect. Prev, Cancer, . 1977. 17. Anderson, H.A., etal.: Household-contact asbestos neoplastic risk. Ann. N.Y. Acad. Sci. 271:311-323,1976. 18. Sheers, G,, and Templeton, A.R,: Effects of asbestos in dockyard workers. Brit. Med. J. 3:574-579,1968. 19. Selikoff, I.J.; Hammond, E.C., and Churg, J.: Asbestos exposure, smoking and neoplasia. JAMA 204:106-112,1968. VOL. 28, NO. 2 MARCH/APRIL 1978 BQOli UvrfU 99