Occupational factors and the incidence of XXXX in Canada.

@entity5 @entity286 @entity1 @entity150
During 1979-82, a case-control study of occupational factors and @entity150 was conducted in Edmonton, Calgary, Toronto, and Kingston, Canada. A total of 826 histologically verified cases of @entity5 were individually matched by sex, age, and area of residence to 792 randomly selected population controls. Subjects were specifically asked about employment in several industries thought relevant to risk of @entity150 . Information was also obtained on lifelong occupational history, with special attention given regarding exposures to fumes, dusts, smoke, and chemicals. In addition, subjects provided data on past medical and residential history, on intake of certain dietary items, and on exposure to @entity286 and other lifestyle factors. Conditional logistic regression methods were used for the analysis. Under adjustment for cumulative lifetime cigarette consumption, it appeared that for both @entity1 and @entity1 , most of the occupational factors examined were not associated with significant alteration in risk of @entity150 . For exposures during the period eight to 28 years before diagnosis, however, raised risk was suggested for @entity1 employed at least six months in the chemicals industry (odds ratio = 2.37, p = 0.004), in dye manufacturing or the dyeing of cloth (OR = 3.62 and 4.63, p = 0.041 and 0.035, respectively), as tailors (OR = 3.85, p = 0.015), or in jobs in which contact with diesel or traffic fumes occurred (OR = 1.69, p = 0.0008). Increased risk was also seen for @entity1 occupationally exposed to tars or asphalt (OR = 3.11, p = 0.019). This study then, at least for @entity1 , supports perhaps a few of the suspect industries as related to risk of @entity150 .
