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Reference
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Population
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Study Group
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Health-Outcome Assessment
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Exposure Assessment
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Analysis, Adjustment for Potential Confounders
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|
Imperial Oil Cohort
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|
Hanis et al. 1979
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Mortality experience (1964–1973) of male Imperial Oil workers (at least 1 yr for active workers; at least 5 yrs for inactive workers) in Canada; internal comparison of refinery and non-refinery workers
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15,032; 5,731 refinery, 9,301 non-refinery
|
Vital status followed through provincial registrars, Statistics Canada
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Job titles classified as in or outside refinery work
|
RR; age
|
|
Schnatter et al. 1992
|
Mortality experience (1964–1983) of Imperial Oil workers (at least 1 yr) in Canada; external comparison with Canadian general population
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34,597
|
Vital status followed through Statistics Canada, internal data sources, NDI
|
Company employment in 11 operating segments and HC exposure assigned by industrial hygienists on basis of detailed work histories
|
SMR; sex, age, calendar period
|
|
Schnatter et al. 1993
|
Mortality experience (1964–1983) of male Imperial Oil petroleum-marketing and distribution workers (at least 1 yr) in Canada; external comparison with Canadian general population
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6,672
|
Vital status followed through Statistics Canada, internal data sources, NDI
|
HC exposure frequency assigned by industrial hygienists based on basis of detailed work histories
|
SMR; sex, age, calendar period
|
|
Schnatter et al. 1996
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Nested cases of lymphohematopoietic malignancies among Imperial Oil workers (at least 1 yr) in Canada; internal controls selected from males in cohort, matched 4:1 on age and were alive at case date of death
|
14 leukemia
7 MM
8 NHL
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Cause of death on death certificates coded by Statistics Canada
|
Company employment in 11 operating segments and HC exposure assigned by industrial hygienists on basis of detailed work histories
|
Mantel-Haenszel OR; age, smoking, family cancer history, frequency of chest x rays
|
|
Lewis et al. 2000
|
Mortality experience (1964–1994) of Imperial Oil workers (at least 1 yr in 1964–1983) in Canada; external comparison with Canadian general population
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34,560
|
Vital status followed through Statistics Canada, internal data sources, NDI
|
Company employment in 11 operating segments and presumed HC exposure derived from job titles
|
SMR; sex, age, calendar period
|
