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KMID : 0358520070190030196
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Korean Journal of Occupational and Environmental Medicine
2007 Volume.19 No. 3 p.196 ~ p.203
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Use of Screening Dose to Evaluate the Work-relatedness of Cancers Occurring among Korean Radiation Workers
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Jeong Mee-Seon
Jin Young-Woo
Lim Hyun-Sul
Kim Chong-Soon
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Abstract
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Objectives: To propose a screening dose based on the probability of causation (PC) to simplify the evaluation procedure for the work-relatedness of the cancers occurring among Korean radiation workers.
Methods: Under the PC uncertainty distribution, the screening dose was defined in which the maximum PC is equivalent to 50% for single exposure to radiation, after which the values were calculated according to three significance levels: 90%, 95%, and 99%. By using the screening doses for each cancer, we also predicted the number of compensations for the occupational cancers among the current Korean radiation workers to determine a reasonable criterion for the significance level.
Results: If the cumulative dose received by a radiation worker with cancer is less than the screening dose, then PC can not be greater than 50%, i.e., the case can not be awarded as an occupational disease. The numbers of compensation cases for a future decade were predicted to be 3-5, 4-6, and 6-10 at the significance levels of 90%, 95%, and 99%, respectively.
Conclusions: The procedure to evaluate the occupational disease was greatly simplified by using the screening dose for evaluation. A criterion of 95% was recommended as the PC upper limit following consideration for the results of the predicted cases for compensation and the economic circumstances in Korea.
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KEYWORD
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Radiation, Workers’ compensation, Occupational diseases, Probability, Causality, Uncertainty
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