1.年龄 岁
2.吸烟史 无有
3.有胸腔外癌症史(>5年) 无有
4.肺结节直径 mm
5.结节边缘是否有毛刺 无有
6.结节是否位于肺上叶 否是
得分：
恶性概率：
For example, at a threshold of 0.10, the prediction model has a sensitivity of 93% and a specificity of 47%; at a threshold of 0.40, the prediction model has a sensitivity of 51% and a specificity of 90%.
参考文献：Swensen SJ, Silverstein MD, Ilstrup DM, Schleck CD, Edell ES. The probability of malignancy in solitary pulmonary nodules. Application to small radiologically indeterminate nodules. Arch Intern Med. 1997;157(8):849-855.