| Beyond the job exposure matrix (JEM): the task exposure matrix (TEM). | |
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MedLine Citation:
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PMID: 10963712 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The job exposure matrix (JEM) has been employed to assign cumulative exposure to workers in many epidemiological studies. In these studies, where quantitative data are available, all workers with the same job title and duration are usually assigned similar cumulative exposures, expressed in mgm(-3)xyears. However, if the job is composed of multiple tasks, each with its own specific exposure profile, then assigning all workers within a job the same mean exposure can lead to misclassification of exposure. This variability of exposure within job titles is one of the major weaknesses of JEMs. A method is presented for reducing the variability in the JEM methodology, which has been called the task exposure matrix (TEM). By summing the cumulative exposures of a worker over all the tasks worked within a job title, it is possible to address the variability of exposure within the job title, and reduce possible exposure misclassification. The construction of a TEM is outlined and its application in the context of a study in the primary aluminium industry is described. The TEM was found to assign significantly different cumulative exposures to the majority of workers in the study, compared with the JEM and the degree of difference in cumulative exposure between the JEM and the TEM varied greatly between contaminants. |
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Authors:
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G Benke; M Sim; L Fritschi; G Aldred |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Annals of occupational hygiene Volume: 44 ISSN: 0003-4878 ISO Abbreviation: Ann Occup Hyg Publication Date: 2000 Sep |
Date Detail:
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Created Date: 2000-10-05 Completed Date: 2000-10-05 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0203526 Medline TA: Ann Occup Hyg Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 475-82 Citation Subset: IM |
Affiliation:
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Department of Epidemiology and Preventive Medicine, Monash Medical School, Commercial Road, Victoria 3181, Prahran, Australia. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aluminum
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adverse effects,
analysis Bias (Epidemiology) Environmental Monitoring / methods* Epidemiologic Methods Humans Job Description* Metallurgy Neoplasms / chemically induced, epidemiology Occupational Diseases / chemically induced, epidemiology Occupational Exposure / analysis* Occupations* Reproducibility of Results Respiratory Tract Diseases / chemically induced, epidemiology |
| Chemical | |
Reg. No./Substance:
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7429-90-5/Aluminum |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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