Further study found that six CEGs, including CCDC124, NR2C2AP, SLC25A39, DDX49, KXD1, TXNL4A, had good diagnostic value and were related to poor OS in HCC patients (all AUC>0.90; all HR > 1.40, p < 0.05). Here, DDX49 is linked to hepatocellular carcinoma.