CD38 and hepatocellular carcinoma: The ROC curve showed that the optimal cut-off value of CD3+ T cell was 62.25%, and the sensitivity and specificity to predict HBV-HCC were 76.9% and 71.4%, and the optimal cut-off value of CD8+HLADR+CD38+ T cell was 21.90%, and the sensitivity and specificity to predict HBV-HCC were 80.7% and 81.6%.