Notably, multivariate analysis indicated that high CD155 expression was an independent indicator for predicting both TTR (HR = 1.83, 95% CI: 1.13–2.97, p = .014) and OS (HR = 2.87, 95% CI: 1.51–5.45, p = .001) in HCC patients (Table 3; Figure S2A,B). The gene discussed is PVR; the disease is hepatocellular carcinoma.