Figure 2. Survival and expression analysis of m6A methylation regulators of early-stage LUAD in clusterA and clusterB subtypes. (A) Expression boxplot of expression of regulatory factors in clusterA and clusterB subtypes in TCGA. *, P < 0.05; **, P < 0.01; ***, P < 0.001; ****, P < 0.0001. (B) Heatmap and clinicopathologic features of the clusterA and clusterB subtypes in TCGA. (C) Kaplan-Meier survival curves of clusterA and clusterB subtypes in TCGA; (D) Kaplan-Meier survival curves of clusterA and clusterB subtypes in GEO; (E) PCA was used to analyze gene expression patterns of clusterA and clusterB subtypes in TCGA.