Document 6B3g0jjqZkYx2qMozEd73XV86

9&o September 6, 1945 Paul Cartier, 1L.D. Medical Director Thetford Mines thetford, Qut., Gan* Dear Gr Cartian Bafarxing to yow latter of July 19th, I thought you could be latereatad la the suggestions tfiieb Kr Wans of our Statistical dtlaioD baa aade la regard' to farther stuSy af the aortal!tp free tubereuloala aad lta poaalbla relationship to asbesteals* To find out anythlag regarding poeatole occupational influences free aortalitgr etatieties, beyond Mat aay be Inferred free the sax and age aceparlson, either ef the fallowing proeariktrwt sight ba attempted* (a) 8aeuro daath rates by broad occupational classes for nan employed la the asbestos Industry and for those splayed la all ether Industries ooabiaed by a suriej af the oeeupatlonal histories of the vertelag population of the oity ad af the deceased workers la a dafinite period* It would bo accessary also to dotorwlaa the age ef these workers, so that slgslflcaat death rates night bs (b) Secure a rough season fTon a careful study ef the occupo tlsns af deceased altars alone the "proportionate aortality" aethod* Shis sould require that a oonplata list bs obtained ef eerkars la the asbestos laJuatry hs died tas tmg eawee la the sureey period sad the awbsr ef these die died free tuberculosis* the proportion ef desths fren tuberculosis to total deaths at a given age h`n_v` with the correspondlag pru/irtlau far non asbestos workers* She aethod has obvious faults but pan be useful. Zt would bs necessary to rtuiy the deaths fv a auhbsr of years la aider to obtain representative percentages* Wlnsarsly yours. Assistant Tloe Prssidnt* Welfare