Document pBpyq3Nmd2RMeV5qV2DLanKr6

`i v* -. - 47. During the period covered by thlo Inveatlgatlon, thorc were nine proved caaot and three auopected caaea In the cohort. Through 1956 and to date in 1957, there were eight deaths, six of which were merely suggestive of cancer of the lung and Included such diagnoses as mediastinal lymphosarcoma, mesotholloma, cancer of the leg with metastases to lung, absess of lung, and cancor of the pancreas, One other was diagnosed on the basis of x>ray only. In addition, there are now living four caeee In which the diagnostic evidence lo strongly suggestive of lung cancer. This lo a total of 33 cases of all types. Including ten "suspectod" but unproved casee, and four that are still living. The remaining 19 constitute the total of proved cases of cancor of the lung among tho asbestos miners since 1940. The proved cases averaged 59 years of ago at doath, and varied between 37 years and 68 years. Their working span covered periods varylag from a minimum of 14 years to a maximum of 37 years. Only three mon bad leos than 25 yaars of employment In the Industry. Seven among those on whom such Information lo available had a weighted oxpoouro placing them In category III, and etx worked In an exposure represented by catogory l, Thero ware only 17 among these proved lung cancer cases In which we have Information regarding the presonce of asbostoilo. Asbettosls was present In nine, although tt was minimal In two. Two pathologists disagreed regarding Its prsoenco In another. At least soven of tho 19 proved lung cancers, therefore, were not accompanied by asbestosls. 0297