Figure 1. Identification of DNA methylation-based clusters in LUAD samples. (A) Consensus among DNA methylation-based clusters for each category number k. (B) Delta area curve of consensus clustering. (C) Consensus clustering of LUAD samples with k = 6. (D) Heatmap of LUAD methylation differences between each DNA methylation subtype. (E) Kaplan–Meier survival curves of LUAD in each DNA methylation subtype. LUAD, lung adenocarcinoma.