We constructed a populationspecific quantitative job exposure matrix jem to estimate the average intakes of typical plutonium workers in this period, from 19521963, and assessed its validity and sensitivity to exposure assessment decisions. Pdf a jobexposure matrix for potential endocrinedisrupting. Retrospective exposure assessment in populationbased casecontrol studies poses a major challenge due to the wide range of occupations and industries involved. We evaluated the performance of two general population jem constances and onet to detect known exposure disease relationships in an american prospective cohort study. A jobexposure matrix addressing hand exposure to wet work. The finjem is a generic job exposure matrix developed in finland which represents a potentially cost effective exposure assessment tool. Apr 16, 2019 purpose the aim of this study was to create a job exposure matrix jem for wet work. The objective of this study was to develop a jem applicable for epidemiological studies of exposure response between daytime light exposure, affective disorders, and. Epub ahead of print comparison between a job exposure matrix jem score and selfreported exposures for carrying heavy loads over the working lifetime in the constances cohort. The job exposure matrix jem has been employed to assign cumulative exposure to workers in many epidemiological studies. Laure ngabirano, marc fadel, annette leclerc, bradley a evanoff, ann marie dale, yves roquelaure, alexis descatha, comparison between a job exposure matrix jem score and selfreported exposures for carrying heavy loads over the working lifetime in the constances cohort, annals of work exposures and health, volume 64, issue 4, may 2020, pages. Development of a jobexposure matrix for exposure to total and fine particulate matter in the aluminum industry. A job exposure matrix jem, a crosstabulation between workplace hazards and occupation title, has been used as an essential exposure assessment tool for epidemiological studies, hazard surveillance, prevention of hazards, and risk quantification in occupational safety and health research. The aim of this study was to evaluate the levels of occupational psychosocial risk factors to which the french working population is exposed.
In the absence of directly measured individuallevel exposure data, a job exposure matrix jem is commonly used in occupational studies to estimate study participants exposures to chemical and physical risk factors based on job titles, industry information and population exposure data. Objectives job exposure matrices jems can be constructed from expertrated assessments, direct measurement and selfreports. Pdf influence of errors in job codes on job exposure matrix. Although a korean asbestos jem has been constructed previously, this jem includes only a few industrial and occupational groups. Pdf developing a job exposure matrix of work organization. Pdf assessing agreement between two jobexposure matrices. Variation in agreement was observed for both the individual exposure entities and for chemical families. The following is the supplementary data to this article. To evaluate disinfectant exposures, we designed job exposure jem and job task exposure jtem matrices, which are thought to be less prone to differential misclassification bias than selfreported exposure. Exposures for all factors were classified into three ordinal levels for 22 job categories. Update of an occupational asthmaspecific job exposure matrix.
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 mg m. Quantitative general population job exposure matrix for. This article presents a prototype job exposure matrix that addresses exposure to all emf factors taking into account job category, work environment, and occupied environment. The objectives of this study were to determine the heterogeneity of data sources used to construct a job exposure matrix jem for occupational noise, and to calculate pooled exposure estimates for different job titles using different sources. Using the jobexposure matrix for elaborating job histories. Studies that report an association between parkinsons disease pd and occupational pesticide exposure often use selfreported exposure and none adjust for concomitant ambient pesticide exposure. A populationbased job exposure matrix jem was developed to assess personal exposures to powerfrequency magnetic fields mf for epidemiologic studies.
High physical workload, especially manual material handling, frequent bending and twisting of the trunk, and wholebody vibration, have most. This casemalformed control study used data from a populationbased birth defects registry eurocat of children and. Jems are particularly useful in situations when information on psychosocial job stressors were not collected individually and can help eliminate the biases that may be present in individual selfreport accounts. Validation of a jobexposure matrix for assessment of utility. Sep 01, 2000 the job exposure matrix jem has been employed to assign cumulative exposure to workers in many epidemiological studies. Comparison of three methods of estimating odds ratios from a job exposure matrix in occupational casecontrol studies. Jobexposure matrices addressing lifestyle to be applied in register.
Developing a job exposure matrix of work organization. The constances job exposure matrix based on selfreported. Apr 28, 2020 cifuentes m, boyer j, lombardi da, punnett l. Job exposure matrix for powerfrequency magnetic fields. It is also necessary to utilize exposure reconstruction through the job exposure matrix jem, expert opinion of exposure judgments, and structured questionnaires. Aug 01, 2011 the job exposure matrix developed in this study, which utilizes similar exposure groups and statistical descriptions of industrial hygiene monitoring data, can be applied more broadly to other employees in the same work areas and used for subsequent epidemiological studies. Pdf jobexposure matrices addressing lifestyle to be applied in.
Reconstruction of the korean asbestos job exposure matrix. Comparison between a jobexposure matrix jem score and. Use of jobexposure matrices to estimate occupational. Construction of jobexposure matrices for the nordic occupational.
Psychosocial work environment and wellbeing determinants of presenteeism propensity. Sep 20, 2020 a job exposure matrix jem is an important surrogate indicator to evaluate past exposure levels. An integrated job exposure matrix for electrical exposures of. Onet is a publicly available online database that describes occupational features across us job titles and that has been used to estimate workplace physical and psychosocial exposures and organizational characteristics. Follow osha instructions, table 1, on specified exposure control methods when working with silica. For a populationbased casecontrol study of pd conducted in californias heavily agricultural region, the authors. Development, use, and availability of a job exposure matrix. Comparison between a selfreported job exposure matrix jem.
Job exposure matrix jemderived estimates of lifetime. The job exposure matrix jem can be useful for this purpose. Jobexposure matrix for the assessment of alkylphenolic. Job exposure matrices are becoming more and more widely used, 1 including use for estimation of biomechanical exposures. In large censusbased studies a generic jobexposure matrix jem covering all occupations. Update of an occupational asthmaspecific job exposure. An expertbased job exposure matrix for large scale epidemiologic. It can be used when counselling concerning job change job choice, as a medicolegal tool when recognizing diseases as occupational and when planning interventions regarding prevention of, in this case. However, if the job is composed of multiple tasks, each with its own. A job exposure matrix has been developed based on potential exposure data collected during the 19721974 national occupational hazard survey nohs.
General population job exposure matrix applied to a pooled. Metaanalysis of jobexposure matrix data from multiple sources. The two general job exposure matrices generally disagreed with regard to exposure classification because of differences in exposure assessment and level of detail of the job axis. Development of job exposure matrices to estimate occupational. Objectives we aimed to update an asthmagen job exposure matrix jem developed in the late 1990s. The jem compiled 2317 mf measurements taken on or near workers by 10 studies in the united states, sweden, new zealand, finland, and italy. The selection of physical exposures included in the matrix was based on the current knowledge of risk factors for low back disorders heavy physical work. Pdf objective job exposure matrices jem may be efficient for exposure assessment in occupational epidemiological studies, but they rely on valid job. Comparison between a jobexposure matrix jem score and self. Performance of population specific job exposure matrices. Previous studies suggest that periconceptional maternal occupational exposure to solvents and pesticides increase the risk of oral clefts in the offspring. Metaanalysis of job exposure matrix data from multiple sources.
Development and validation of a job exposure matrix for physical. However, pesticide exposure assessment remains a key methodological issue for epidemiological studies. Pdf the nordic occupational cancer study nocca is a cohort study based on employed populations in one or more censuses in denmark. The version of record development of an occupational airborne chemical exposure matrix is available online at. This method of exposure assessment has commonly been used in epidemiological studies on chemical and physical exposures hemon and goldberg 1993. Original article incident cts in a large pooled cohort study. In epidemiology, the main purpose of a gpjem is the retrospective assessment of occupational exposure of study subjects, based on their recorded occupations, although. Development of physical and psychosocial job exposure matrices. Development of a job task exposure matrix to assess occupational exposure to disinfectants among u. Job exposure matrices jems have for decades been applied in studies.
Pdf influence of errors in job codes on job exposure. Review each hazard with identified safety controls and determine rac see above probability is the likelihood to cause an incident, near miss, or accident and. Design of the 3 methods to evaluate occupational exposures by jem and jtem, example for exposure to. Methods this study used existing french national data on work conditions collected by the french ministry of labor in 1991, in which 20. This study aimed to reconstruct the jem by integrating the latest organized data to improve its utility. In epidemiology, the main purpose of a gpjem is the retrospective assessment of occupational exposure of study subjects, based on their recorded occupations, although gpjems can also more broadly function as an information tool for. Developing a job exposure matrix of work organization hazards in.
Development of an occupational airborne chemical exposure. Original article incident cts in a large pooled cohort. A job exposure matrix for potential endocrinedisrupting chemicals developed for a study into the association between maternal occupational exposure and hypospadias. Developing a job exposure matrix of work organization hazards in the united states. Apr 06, 2016 introduction a job exposure matrix jem for psychosocial job stressors allows assessment of these exposures at a population level. Estimating the burden of united states workers exposed to. Constructing a job exposure matrix jem using national representative data may be a useful tool to provide an assessment of exposure to psychosocial work factors within a given job title. Most relevant lists of abbreviations for jem job exposure matrix. Besides selfreported information, expert assessment or metrology, job exposure matrices still appear to be an interesting tool.
Objectives this study was undertaken to compare the operating characteristics of the hoar et al job exposure matrix and the job exposure matrix of the national occupational hazard survey nohs of the national institute for occupational safety and health in the united states. Less is known about the effect of occupational exposure to metals, dust, and gases and fumes on development of oral clefts. Aoem annals of occupational and environmental medicine. A first software jhs for the elaboration of job histories oriented toward risks was designed and results published in an article a software for the elaboration of job histories. A jem is a tool used to assess exposure to potential health hazards in occupational epidemiological studies.
This article presents a second software jes, based on the use of a job exposure matrix designed for one company. A job exposure matrix for use in population based studies in england and wales. Construction, validation and sensitivity analyses of a job exposure matrix for early plutonium workers at the sellafield nuclear site, united kingdom. Comparison between a selfreported job exposure matrix.
The jem is a tool for estimating exposure levels and doseresponse relationships by grouping individuals exposed to specific carcinogenic or other hazard substances. Objectives job stress is a growing epidemiologic field in france. Conclusions these results indicate poor to only fair agreement between the 2 job exposure matrices, and they underscore the importance of understanding the rules for classifying exposures when any such matrix is used. A job exposure matrix jem, a crosstabulation between workplace hazards and. Pdf development of a job exposure matrix jem for the. Construction, validation and sensitivity analyses of a job. The health effects of pesticides have been extensively studied in epidemiology, mainly in agricultural populations. Maternal occupational exposure and oral clefts in offspring. Online supplement development of a job task exposure matrix to assess occupational exposure to disinfectants among u. Validity of a jobexposure matrix for psychosocial job. Metaanalysis of jobexposure matrix data from multiple. Comparison of exposure estimates in the finnish job.
For a populationbased casecontrol study of pd conducted in californias heavily agricultural region, the authors developed a comprehensive job exposure matrix jem to assess occupational exposure to pesticides. We developed a jobexposure matrix called canjem using data generated in popula tionbased. Pdf development of a jobexposure matrix for exposure to. We compared exposure estimates from three data sources and explored whether combining exposures from. Objectives occupational exposure to disinfectants is associated with workrelated asthma, especially in healthcare workers. A jobexposure matrix jem is a tool used to assess exposure to potential health hazards in occupational epidemiological studies essentially, a jem comprises a list of levels of exposure to a variety of harmful or potentially harmful agents for selected occupational titles. We conducted internal crossvalidation using an a priori 10% extracted sample to evaluate. The jem was populated with measurements from government databases, private industry, and the published.
Development, use, and availability of a job exposure. In these studies, where quantitative data are available, all workers with the same job title and duration are usually assigned. Airborne occupational exposures and the risk of developing. This paper describes the construction of a general population jem based on selfreported physical exposures, its ability to create homogeneous exposure groups heg and the use of different exposure metrics to express job level estimates. An integrated job exposure matrix for electrical exposures. Developing a jobexposure matrix with exposure uncertainty. Development of an occupational airborne chemical exposure matrix. Developing a job exposure matrix of work organization hazards. Pdf a study to assess the association between the prevalence of hypospadias and maternal occupational exposure to potential. Pdf objectives information about lifestyle factors in registerbased occupational health studies is often not available. Nov 30, 2010 we compared a job exposure matrix that distinguished four categories of exposure to 50hz timeweighted average twa magnetic fields.
In large censusbased studies a generic job exposure matrix jem covering all occupations. Job exposure matrices jems are important tools for estimating occupational exposures in study populations where only. However, little is known about the specific products involved. Methods for each agent of the new occupational asthmaspecific jem. Objectives a job exposure matrix jem is a tool to estimate workers exposure to occupational physical risk factors. During the last decade, the use of job exposure matrices jem in occupational studies has grown but uncertainty remains among epidemiologists and industrial hygienists regarding this methodology and appropriate methodological tools are needed to study the performance of jem. Pdf a populationbased job exposure matrix for power. A general population job exposure matrix gpjem is a crossclassification of occupations jobs and exposures 1. Lucile migault, joseph d bowman, hans kromhout, jordi figuerola, isabelle baldi, ghislaine bouvier, michelle c turner, elisabeth cardis, javier vila, development of a job exposure matrix for assessment of occupational exposure to highfrequency electromagnetic fields 3 khz300 ghz, annals of work exposures and health, volume 63, issue 9. To avoid underestimation of exposure in jobs for which strict assumptions were used e. When compared with selfreported exposures, the sensitivity of both job exposure matrices was low on average, below 0. Performance of two general jobexposure matrices in a study. Validation of a jobexposure matrix for assessment of. Both matrices were applied to occupations in the metal, paper and wood, and chemical, drug and paints industries, and.
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