(A and C) A comparison of the four models, the value of AUC of PKUPH model is 0.634, the value of AUC of Mayo model is 0.626, the value of AUC of VA model is 0.621, and the value of AUC of Brock model is 0.600. (B and D) A comparison of the third and fourth phases of the first and second phases of lung cancer. The value of AUC for PKUPH model is 0.670, the value of AUC for Mayo model is 0.621, the value of AUC for VA model is 0.547, and the value of AUC for Brock model is 0.612. (E and G) A comparison of lung squamous cell carcinoma, the value of AUC of PKUPH model was 0.606, the value of AUC of Mayo model was 0.639, the value of AUC of VA model was 0.687, and the value of AUC of Brock model was 0.582. (F and H) A comparison of lung adenocarcinoma, the value of AUC of PKUPH model was 0.605, the value of AUC of Mayo model was 0.583, the value of AUC of VA model was 0.552, and the value of AUC of Brock model was 0.593.