Document JNk9Vw3Vg1KNZORDpoq5rVDp2

Jkf CfMl 20-M **.* U-M *4+ TfUb A. M. A. ARCHIVES OF INDUSTRIAL HEALTH TaiU 17^-iaftp Cater Deaths far the Protest ef Qmshee* 1 _i i SMhr *f Distil tu tU9 twim>u< t lopiimi T*aC*mte* TmI fwagj S#K*A*di *r* Tvcal rmit Tool CcniM TuJ nwit fwci4>f1 frffur T*ut /mid 7XOB njxn I4M UlM 131400 IT n 11 M 1) to# 14 M lu 44 a tt m 9 aa a UT 9 Ml 17 a 3* 39 m It ia 39 M m 90 m m JUi 0*#P . .. ------**..._________ ............................... 0W4IUm>-- Butt bw fet 160.00# m IteiCMiiStt IhoAh fraowy T*u| rmit Tint hh*n rs 1.9 l i* B4 114 9LX n.i ns n.i 00.1 ai *u 99J 964 *4 aj tj 134 14 ttu T4olC*uM IOWMi frxfi Tm| 13 *1 1L4 1=4 rn*H 14 1*4 IU Ml TOCtf 14 3T4 H.T 1=4 fnt 19 194 l.l <a 394 113 3T4 im * D*tS fclB tm*! f tonx* !T oi*<*3 *r *991909 WH tiwimw toe t|i c^ea tar atfct ta Ut i#ol otpslitM it HM. w uni (a fcippan. 0t*. :i u Oroapapo*, this disease is looked lor in Ox miners, tnd it seems probable thi the mortality rates (or the Province nay be tow. This would appear to be sabttantiated by the (act that the reporting of cases in the cohort showed no such increase over the same period. Table 17 was compiled to show the an nual age-specific lung cancer rate of cases in which the doth certificate merely read "cancer of the lung." as distinguished from those in which the diagnosis was confirmed by autopsy, surgery, or biopsy*. The term "specified primary" refers to those cases in these two categories in which the tumor was specified as having originated in the long. It will be noted that, of the total cases reported in 1955. a modi higher percentage than in !9S< were specified asprimary. The table also shows that a higher percentage of the total cates certified in 1955 were proved, again indicating increasing interest in this disease. A comparison has been made between the age-specific rates shown in Table 17, and those for the cohort, shown in Table & An average of the 1954 and 195S rates for the Province has been used, since the 1955 figure was higher and may have been ex cept ionaL This comparison, summarised in Table IS, shows that the observed number of deaths in our sample is not significantly greater than the expected number of deaths, based on the average ol the 1954 and 1955 figures for the Province. It is true that, in the ok ot the age group of 65 and over, the five deaths provide a figure which is almost significant at the 95% level. How ever, it should be noted that this number includes one of the suspected but unproved cases previously referred to. Furthermore, it is rather likely that the rate for the general population is understated in this age group, for the obvious reason that the exact ante of death in the very old is not Taste H.-CironiM of Ik Actual and f/piiri A'amdcr of Long Cenrrr Sulk try Agt dsw| dikifw ffhrri AM Oiwe tooirt <u* 14 90 U4 K*.# si.* Mm Dua` UH 1.1t*l ot I HI t .-- 1 * Tto OMNd Mitn a tmwtf n tin * at (hi NM lot ItlS iKOMilt rt*c> tor (ft* Qmxc. UMMrh.i Pet 17. font. r>St is