Fig. 1

Kaplan–Meier curves of overall survival (OS), time to progress (TTP), and hepatic metastasis-free survival (HMFS) between the anti-HBc positive group and anti-HBc negative group. A Overall survival curve. B Time to progress curve. C Hepatic metastasis-free survival curve. The light blue and red area represent 95% confidence intervals of each group. There is no significant difference between the two groups