Fig. 2

Construction and validation of the risk score model. A–C Distribution of risk score, scatter plot of survival time, and expression levels of 9 lncRNAs between the high- and low-risk groups in the training cohort, validation cohort, and external validation cohort (ICGC); D–F Kaplan–Meier survival curve between high- and low-risk groups in the training cohort, validation cohort, and external validation cohort (ICGC); G–I PCA based on the nine selected ARlncRs between high- and low-risk ccRCC patients in the training cohort, validation cohort, and external validation cohort (ICGC)