Document gbwzzoBK9wmLazb6pQx8dm3y9

a which time there were 144 death* Including 205 mates and 139 females. 7 Among them were 55 cases (16%) of cancer of tbo lung, 41 In mates and 14 In females. It Is quite possible that a largo number of asbe* totlcs who did not die of their asbestosto, or In whose death certificate It was not mentioned, map have be on missed. The Import of this 167* Is enhanced by the simul taneous statement that tlio Incldonco of lung cancer In autopsies of the general population is only t. The danger af attempting to compare a rate found In 344 cases with the rate for the general population without respect to age, occupation, and many other variables, auch as smoking habits. Is obvious. Lynch ^^wbo with Smith had roportod-the first case In 1935, reported four cases of carcinoma of the lung in a series of 49 autopsies on workers In an asbestos manufacturing plant who wore shown to have "demon- etrable deposits of asbestos la the lungs." This, of course, is not neces sarily Identical with the disease asbestosle. Lynch, himself, points out that, although this Is an Incidence of 8.2)1, "both flguree are too email for very serious statistical types of calculation." Nevertheless, later writers have used this paper to strengthen the case for an association of carcinoma of the lung with esbestoels. It Is also of Internet that Klutz found only the same number of caeee of lung cancer In a series nearly 10 tlrnee as Urge, L a., four In 478 casos of aabestonle. Behrens, ne quoted In Merewether estimated that, of 309.cases of asbettosls In the lltorature. 44 sbowod associated cancer of tho lung--giving an incidence of 14.2%. This Is an Illustration of generalizing co incidence 0257