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危险度数量化评估方法是应用现代生物数学技术（模糊判别、信息论等）对人群及个体患肺癌危险度进行数量化评估，从而数量地指导人们进行肺癌的一、二级预防，有效地确定肺癌高危人群和高危个体。本文应用概率论，模糊数学等原理和方法，通过肺癌危险因系的数量化，建立了用于人群肺癌筛检的数学模型，按确定判别阈值的隶属度（ＡＤ）一０．５进行高危个体数量化评估，确定高危个体。本文方法具有简便、易行，便于推广应用特点。是肺癌筛检中投资少，收益大的一种新方法。
The quantitative risk assessment method is to quantitatively assess the risk of lung cancer among populations and individuals by applying modern bio-mathematical techniques (fuzzy discrimination, information theory, etc.) to quantitatively guide people to carry out primary and secondary prevention of lung cancer and effectively determine lung cancer. High-risk and high-risk individuals. This article applies probability theory, fuzzy mathematics and other principles and methods, through the quantification of lung cancer risk factors, established a mathematical model for screening of lung cancer in the population, according to the determination of the threshold value of the degree of membership (AD) - 0.5 for high-risk individuals Quantitative assessment to identify high-risk individuals. The method of this paper is simple, easy, and easy to promote and apply. It is a new method of investing less in the screening of lung cancer.