نتایج جستجو برای: exposure estimates
تعداد نتایج: 479240 فیلتر نتایج به سال:
A general simulation procedure is described to validate model fitting algorithms for complex likelihood functions that are utilized in periodic cancer screening trials. Although screening programs have existed for a few decades, there are still many unsolved problems, such as how age or hormone affects the screening sensitivity, the sojourn time in the preclinical state, and the transition prob...
AIMS To determine if a job exposure matrix (JEM) could be developed using the California Department of Pesticide Regulation Pesticide Usage Database in conjunction with crop, time, and county specific self reported work history and to determine if this was a feasible method to obtain exposure estimates to triazine herbicides. METHODS Agricultural work histories were gathered from women enroll...
Commercially used per- and polyfluorinated compounds (PFCs) have been widely detected in humans, but the sources of human exposure are not fully characterized. The objectives of this study were to assess the relative importance of different exposure pathways of PFCs in a group of Norwegians and compare estimated intakes with internal doses obtained through biomonitoring. Individual PFC intakes ...
BACKGROUND Exposure-response analyses in occupational studies rely on the ability to distinguish workers with regard to exposures of interest. AIMS To evaluate different estimates of current average exposure in an exposure-response analysis on dust exposure and cross-shift decline in FEV1 among woodworkers. METHODS Personal dust samples (n = 2181) as well as data on lung function parameters...
Background: This study uses data of the global burden of diseases (GBD) study 2010 to report death, disability-adjusted life year (DALYs), years of life lived with disability (YLDs) and years of life lost due to premature mortality (YLLs), attributed to suboptimal breastfeeding by age and gender during 1990 to 2010 in Iran. Materials and Methods:The GBD assessments were used, together with esti...
In a follow-up study of mortality among North American synthetic rubber industry workers, cumulative exposure to 1,3-butadiene was positively associated with leukemia. Problems with historical exposure estimation, however, may have distorted the association. To evaluate the impact of potential inaccuracies in exposure estimation, we conducted uncertainty analyses of the relation between cumulat...
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