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Document ID (ISN)68092
CIS number 96-2094
ISSN - Serial title 0355-3140 - Scandinavian Journal of Work, Environment and Health
Year 1992
Convention or series no.
Author(s) Suarez-Almazor M.E., Soskolne C.L., Fung K., Jhangri G.S.
Title Empirical assessment of the effect of different summary worklife exposure measures on the estimation of risk in case-referent studies of occupational cancer
Bibliographic information Aug. 1992, Vol.18, No.4, p.233-241. 25 ref.
Abstract The effect of different summary worklife exposure measures (i.e. measurements attributing weightings to either duration or concentration of exposure or both) on the estimation of risk in case-referent studies of occupational cancer was analyzed by comparing two matched case-referent studies (from southern Ontario, Canada, and Baton Rouge, Louisiana, USA) associating exposure to sulfuric acid with cancer. Five summary exposure measures were converted to discrete exposure levels through the use of sophisticated statistical methods. The Ontario data set exhibited only minor differences across the 5 exposure measures. The Louisiana data set, however, produced different results, and the time-dependent measures appeared to underestimate the risk. It is possible, therefore, to obtain different estimates of risk from different exposure measures. It is recommended that, in the absence of proved models for assessing exposure, a variety of summary measures be used to estimate risk. This approach would facilitate the comparison of findings across studies.
Descriptors (primary) epidemiology; length of exposure; exposure evaluation
Descriptors (secondary) Canada; Ontario; USA; Louisiana; comparative analysis; case-control study; sulfuric acid; mathematical analysis; mathematical models; cancer
Document type D - Periodical articles
Country / State or ProvinceCanada
Subject(s) Occupational pathology
Broad subject area(s) Occupational medicine, epidemiology
Browse category(ies) Exposure evaluation
Epidemiology