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GBZ 97-2017《职业性放射性肿瘤判断规范》沿用了其替代标准GBZ 97-2009《放射性肿瘤病因判断标准》的病因概率(probability of causation,PC)不确定度的计算方法,即GBZ 97-2017标准使用了GBZ 97-2009标准中的方法估算其PC上限值。PC上限值是放射性肿瘤判断的最终依据,若其值≥50%为职业性放射性肿瘤,否则不是。PC的不确定性是指PC具有明确的不确定度[1]。由于用于计算PC的各个参数存在误差,导致得到的PC具有不能肯定的程度,即不确定度。不确定度可以进行定量评估。不确定度越小,PC的可信区间越小;不确定度越大,PC的可信区间越大。
GBZ 97-2017 《职业性放射性肿瘤判断规范》解析——放射性肿瘤病因概率方法的不确定性
Dissection of GBZ 97-2017 Judgment standard for occupational radiogenic neoplasms—Uncertainty of probability of causation methodology in radiogenic neoplasms judgment
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摘要: 放射性肿瘤病因概率(PC)方法具有先天的不确定性,这是我国国家标准中亟待加强的部分。笔者总结了放射性肿瘤PC方法不确定性的来源和主要内容,以及不确定性的分析和评估的研究现状,并介绍了降低PC方法不确定度的几种措施。Abstract: There is native uncertainty in method of probability of causation (PC) for judgment of radiogenic neoplasms. This paper summarizes the sources of the uncertainty, main uncertainties and current research of its analysis and assessment. The uncertainty of PC method in Chinese national standard is need to be improved urgently. This paper introduces several methods to decrease uncertainty of PC method in national standards establishment.
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