Figure 2.

(a) Univariate Cox regression analysis indicated 25 prognostic IRGs. (b) The Kaplan-Meier plot demonstrated that low-risk patients had a longer OS than medium-risk and high-risk patients. (c) Survival analysis of patients in pathological stages 1 and 2 suggests that the IRG model is effective in the early stage LUAD patients. (d, e) The five-year and three-year ROC curves showed that the AUC of the IRG prognostic model are 0.826 and 0.755. (f) Heatmap of eight prognostic IRGs. (g) Patients with LUAD were divided into the high-risk, medium-risk, and low-risk groups depending on the IRG model.