Fig. 7
From: Prognostic signature for hepatocellular carcinoma based on 4 pyroptosis-related genes
External validation of the ICGC cohort. PCA was performed by dividing HCC samples in the ICGC database into high- and low-risk groups using the cut-off values in TCGA (a). Samples with a high risk score in ICGC HCC samples had a worse prognosis (b, c). The t-ROC curve verifies the accuracy of the prognostic signature (d). Multivariate Cox regression showed that the risk score was an independent prognostic factor in the ICGC database (e)