Occupational cancer: experience in Ontario
Chovil, A.C.; McCracken, W.J.; Dowd, E.C.; Stewart, C.; Burton, D.F.; Dyer, D.W.
Canadian Medical Association Journal 125(11): 1237-1241
1981
ISSN/ISBN: 0008-4409 PMID: 6460552 Document Number: 168733
This paper reviews the experience of the Workmen's Compensation Board of Ontario in identifying cases of cancer that could be attributed to occupational hazards. Worker's claims for compensation are allowed if there is reasonable medical evidence that their cancer was caused by exposure to risk factors associated with their occupation. Details of the types of cancer associated with specific carcinogens or fields of employment are discussed. About 50% of the cases were related to exposure in particular industrial operations that functioned for relatively brief periods. The number of deaths from cancer identified as being caused by occupational factors is compared with the total for cancer from all causes in Ontario during the period 1971 through 1975. Although all workers eligible for compensation may not have been identified, the data suggest that less than 1% of cancer is presently caused by occupational factors.